Answers
Gene regulation through evo-devo mechanisms affects the number, size, shape, and identity of flower petals.
What are the methods of gene regulation in flower petals?Gene regulation controls flower petal morphology through the process of gene expression, which is regulated by various evo-devo mechanisms.
The two main evo-devo mechanisms involved in regulating flower petal morphology are cis-regulatory elements and homeotic genes.
Cis-regulatory elements control the timing and location of gene expression by binding to transcription factors that activate or repress gene expression. These elements affect the number of flower petals, as well as their size and shape. For example, if a cis-regulatory element is activated during flower development, it can cause the formation of additional petals or change the shape of the petals.
Homeotic genes, on the other hand, control the identity of flower organs, such as petals, stamens, and sepals, by regulating the expression of other genes. Mutations in homeotic genes can lead to the transformation of one type of organ into another. For example, if a homeotic gene responsible for producing petals is mutated, it may result in the production of sepals instead of petals, or it may change the size or shape of the petals.
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Related Questions
what is the difference between phylums
Answers
Answer:
Number of species in a phylum is much
higher than that in class
Explanation:
Class is more specific than phylum. The probability of describing a new phylum is lower than class. Phylum is ranked between kingdom and class, whereas class is ranked between phylum and order
Write a scientific argument to Alex Young that addresses the question: What caused the stickleback population to have less armor and become faster?
Answers
The stickleback population's reduced armor and increased speed can is due to natural selection because the sticklebacks with less armor and greater speed were better adapted to their environment resulting in greater survival rates and higher reproductive success.
What is natural selection?Natural selection is the variation in individual survival and reproduction brought on by phenotypic variances.
Environment-adapted organisms have a higher chance of surviving and dispersing the genes that contributed to their success. Over time, this process leads to the evolution and divergence of species.
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where is mitochondria found abundantly between sperms and ova.Explain
Answers
Mitochondria are found abundantly in the midpiece of the sperm. The midpiece is located just behind the head of the sperm and contains many mitochondria that provide energy for the sperm to swim towards the egg. The egg, on the other hand, contains mitochondria throughout its cytoplasm. This is because the egg needs a large amount of energy to support the early stages of embryonic development, before the zygote can begin to produce its own energy.
During fertilization, the sperm and egg combine to form a zygote. The mitochondria from the sperm are typically destroyed after fertilization, so the zygote relies solely on the mitochondria from the egg for energy production. This is why mitochondrial DNA is inherited solely from the mother in most animals, including humans.
Compare and contrast the function of organs and other physical structures of plants and animals.
PARAGRAPH EXPLANATION PLEASE
Answers
Animals and plants have completely distinct body structures and metabolic processes.
Animals have a layer of skin, while plants have a waxy outer covering. Water and nutrients are moved throughout the structures of plants. Animals transmit blood containing oxygen, nutrients, and waste products through arteries, veins, and capillaries. Animals have five senses: eyes, ears, noses, and tongues.
Photosynthesis and reproduction are just two of the many tasks performed by this system. The organ systems of plants collaborate to form the structure and functionality of the entire organism, just like those of animals.
Animals have a large number of distinctive and specialised organs, whereas plants only have leaves, stems, and roots as organs.
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Leopards have spots to blend in with the patches of sunlight on the jungle floor.
How might a trait like spots become more common in a population of leopards?
A. Leopards get their spots by rubbing against each other. Eventually all leopards
in a population will have spots.
B. Blending in helps leopards successfully hunt for food. Leopards with more food
are more likely to survive and pass on their spotted trait to offspring.
C. An adult leopard develops more spots during its lifetime in order to compete
with other leopards.
Answers
2 Midori knows that plants grow from seeds. In what part of the plant are seeds formed?
A. leaves and roots
B. cones and leaves
C. stems and flowers
D. flowers and cones
Answers
Answer:
Explanation:
A
Predict what you think you would hear if you were moving with the firetruck as it produces sound waves. Would you hear a change in pitch because of the Doppler effect?
Answers
Answer:
yes
Explanation:
the doppler effect is an increase or decrease in the frequency of waves, meaning each little wave is getting closer or farther apart.
Quest Connection
Choose a plant. Find a structure of the plant with an
interesting shape. What human products have a similar
shape with a similar purpose?
Answers
I choose the Venus Flytrap plant, which has a unique and fascinating shape with its carnivorous leaves that can snap shut to catch insects.
What is a similar human product?One human product with a similar shape and purpose is the mousetrap. Like the Venus Flytrap, a mousetrap uses a mechanism to quickly and effectively trap its prey. Both of these structures rely on the principle of a trigger mechanism to quickly capture their prey.
Another similar human product is the snap hair clip, which uses a similar mechanism to quickly snap shut and hold hair in place.
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what may happen to a solid when it is continuously exposed to heat?
Answers
When a solid is continuously exposed to heat, it may undergo a phase change and transform into a liquid or a gas.
This happens because heat causes the molecules in the solid to gain energy and vibrate more rapidly. As a result, the attractive forces between the molecules weaken, and the solid's structure begins to break down.
If the temperature continues to increase, the solid will eventually reach its melting point and transform into a liquid. This is known as melting or fusion. If the temperature continues to increase even further, the liquid may reach its boiling point and transform into a gas. This is known as vaporization.
However, not all solids will transform into a liquid or gas when exposed to heat. Some solids may undergo a chemical reaction instead, breaking down into new compounds or elements.
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When 4.41g of phosphoric acid (H3PO4) react with 9.25g of barium hydroxide, water and insoluble barium phosphate form. mole ratio
Answers
The mole ratio of the barium hydroxide, water and insoluble barium phosphate is 3 : 6 : 1
What is the mole ratio?We would have to look at the balanced reaction equation before we can be able to talk about the mole ratio. This is because the mole ratio can only be derived by the use of the balanced reaction equation which i have shown below as;
The mole ratio, also known as the stoichiometric ratio, is a ratio of the amounts of two substances in a chemical reaction, expressed in terms of moles. It is derived from the balanced chemical equation of the reaction
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Missing parts;
When 4.41g of phosphoric acid ([tex]H_{3} PO_{4}[/tex]) react with 9.25g of barium hydroxide, water and insoluble barium phosphate form Find the mole ratios of the reaction.
8.
gases in the atmosphere,
including
maintain surface air temperature.
anola. Condensed, nitrogen
b. Greenhouse, water vapor
trap radiated heat and help
c. Flammable, carbon dioxide
d. Inert, oxygen
Answers
Answer:
Explanation:b cause its a non verbal. answer for the asset.
%. When a few individuals become isolated from a larger population and establish a new one whose gene pool is not reflective of the source population is called
Genetic drift and tends to lead to a loss of genetic diversity
b. Genetic drift and tends to lead to an increase in genetic diversity
c. Gene flow and tends to lead to a reduction in genetic differences between the populations
d. Gene flow and tends to lead to an increase in genetic differences between the populations
Answers
Answer:The answer is D
The book named Principles of Geology, which influenced Darwin, was written by
Answers
Answer:
Principles of Geology, which influenced Darwin, was written by Charles Lyell
Explanation:
A forest fire destroyed many plants in a forest. Some plants survived. The process that will allow the population of these plants to increase is
Answers
Natural selection is the process that causes the population of surviving plants to grow following a forest fire. Plants that survive with beneficial features have a survival advantage and can transmit these traits on to the following generation, increasing the population.
How are plants able to endure after a fire?Because of a smart layer of thermal insulation produced by their bark, dead leaves, or moist tissues, some plants can withstand flames.
How are plants impacted by forest fires?In addition, fire can burn and harm vegetation communities, such as rainforests, whose recovery might take hundreds of years. specific plants or animals are killed or hurt. cause marshes and waterways to erode, which in turn causes sedimentation.
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What is an example of another pattern in nature that is caused by the
position of objects in the solar system?
A The petals of a flower
B Zebra stripes
C Day and night
D A bee's honeycomb
Answers
An example of another pattern in nature that is caused by the position of objects in the solar system is (d) A bee's honeycomb
Explaning another example of the patternFrom the question, we have the pattern to be:
Object's position in the solar systemA pattern in natureBy definition, the objects in the solar system are located in their relative location to the sun and also have impacts on the other bodies in the solar system.
The example of pattern that fits this scenario from the list of options is the (d) bee's honeycomb
This is because the bee uses the direction and angle of the sun to steer and also keep in touch with each other
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Gel Electrophoresis: please fill in the blanks!
Answers
Based on their size, shape, and electrical charge, molecules including DNA, RNA, and proteins may be separated and analysed using the gel electrophoresis technique.
It entails applying a charged electric field to a gel or matrix, causing the molecules to move through the gel and towards the anode, or positive electrode.
Smaller molecules pass through the gel more quickly than bigger ones, therefore they are segregated depending on their size and charge. Additionally, compared to molecules with a lower charge, those with a higher charge will move through the gel more quickly.
Gel electrophoresis is an effective method for examining and contrasting the sizes and charges of molecules. It may be used to recognise and describe many compounds, including DNA and proteins.
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In the triangles, HG = MP and GK = PN. Triangles H G K and M P N are shown. Side H K has a length of 15 millimeters. Side M N has a length of 11 millimeters. Sides H G and M P are congruent. Sides G K and P N are congruent.
Answers
Since HG = MP and GK = PN, triangles H G K and M P N are congruent by the Side-Side-Side (SSS) congruence criterion.
Therefore, the corresponding angles and sides of the two triangles are equal. In particular, we have:
Angle H is congruent to angle M (corresponding angles).
Angle G is congruent to angle N (corresponding angles).
Side HG is congruent to side MP (given).
Side GK is congruent to side PN (given).
Side HK is congruent to side MN (given).
Based on this, we can conclude that the following statements are true:
Angle H is congruent to angle M.
Angle G is congruent to angle N.
Side HG is congruent to side MP.
Side GK is congruent to side PN.
Side HK is not congruent to side GN, as they are not corresponding sides.
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the question is incomplete. complete question is
In the triangles, HG = MP and GK = PN. Triangles H G K and M P N are shown. Side H K has a length of 15 millimeters. Side M N has a length of 11 millimeters. Sides H G and M P are congruent. Sides G K and P N are congruent. Which statement about the sides and angles is true?
In DNA recombination, what is created when the DNA is opened up at the restriction site?
Responses
A double-stranded DNAdouble-stranded DNA
B RNARNA
C sticky ends
Answers
Answer:
C. Sticky ends.
Explanation:
C. Sticky ends.
When the DNA is opened up at the restriction site during DNA recombination, the enzyme creates a double-stranded cut leaving short, single-stranded overhangs called sticky ends. These sticky ends can base pair with complementary sticky ends generated by the same restriction enzyme on another DNA molecule, allowing the two DNA molecules to be joined together. This process is used in DNA cloning and other genetic engineering techniques.
3. (A) Pollution is the contamination of air, water or earth by harmful substance. (B)
We should take care of our environment. (C) Among the types of pollution, the
one that has existed longer than any other is water pollution. (D) Its
consequences are readily seen when pollutants reach groundwater reservoirs.
(E) This creates serious health hazards to people drinking the water.
The
topic
The
supporting
detail
that
sentence
does
not
belong
is:
is:
Answers
The sentence that does not belong as a supporting detail for the topic sentence "Pollution is the contamination of air, water or earth by harmful substance" is sentence B: "We should take care of our environment." While it is a related idea and certainly a good practice, it does not provide any additional information about the topic of pollution or how it affects the environment and human health. The other sentences provide specific details about the types and consequences of pollution, and support the idea that pollution is a serious issue that requires attention and action.
Your friend left a cage open and several genetically modified frog escaped. Near graduation you find that the population has been living in Tracer pond. Wild frogs are homozygous dominant for smooth skin the genetically modified are homozygous recessive for bumpy skin. There are 826 that are smooth skinned out of the 375 that are heterozygous and 85 frogs have bumpy skin
What is the frequency of the recessive allele?
What is the frequency of the dominant allele?
Answers
p^2 + 2pq + q^2 = 1
where p is the frequency of the dominant allele (in this case, the allele for smooth skin), q is the frequency of the recessive allele (in this case, the allele for bumpy skin), p^2 is the frequency of homozygous dominant individuals, 2pq is the frequency of heterozygous individuals, and q^2 is the frequency of homozygous recessive individuals.
We can start by calculating the frequency of the recessive allele:
q^2 = 85 / total number of frogs
q^2 = 85 / (826 + 375 + 85)
q^2 = 0.073
To find the frequency of the dominant allele, we can use the fact that p + q = 1:
p + q = 1
p = 1 - q
p = 1 - 0.073
p = 0.927
So the frequency of the recessive allele is 0.073, and the frequency of the dominant allele is 0.927.
Click all that is true. The functions of proteins are:
transport important things in your body
build the structures of your body
enzymes to make chemical reactions go faster
send messages to cells
make antibodies to fight viruses
Answers
Answers:
2. build the structures of your body
3. enzymes to make chemical reactions go faster
5. make antibodies to fight viruses
The functions of proteins are:
transport important things in your body build the structures of your body enzymes to make chemical reactions go fastersend messages to cellsmake antibodies to fight virusesWhat are the properties of protein?Proteins are organic macromolecules made up of amino acids joined by peptide bonds. They have a complex and diverse structure and play many essential roles in the body. Some of the properties of proteins include:
Structural diversity: Proteins have a highly diverse structure, which is important for their many functions.
Amino acid composition: Proteins are made up of different combinations of 20 different amino acids.
Size: Proteins can vary greatly in size, from small peptides to large multi-subunit complexes.
Shape: Proteins can have complex 3D shapes that are critical to their function.
Solubility: Proteins can be either soluble or insoluble in water, depending on their structure and composition.
Stability: Proteins can be stable or unstable under certain conditions, such as changes in temperature, pH, or salt concentration.
Function: Proteins have a wide range of functions in the body, including structural support, enzyme catalysis, transport, and communication.
Denaturation: Proteins can lose their structure and function when exposed to certain physical or chemical conditions, a process known as denaturation.
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IM OFFERING 50 POINTS
Which of the following is not a sustainable wastewater practice that an individual can do?
Don't flush prescription drugs
Use biodegradable flushable's
Use trash bins for tissue
Flushing sanitary napkins
Answers
Answer:
D.) Flushing sanitary napkins is not a sustainable wastewater practice that an individual can do.
Explanation:
The other options listed are sustainable wastewater practices. Using biodegradable and flushable products can reduce the amount of waste in the sewer system, but it is important to check if they are truly flushable and won't cause clogs.
silt suspended in the water surrounding a coral reef near
the coast of a small island community in the Caribbean Sea
Origin:
Effect on one organism:
Effect on humans:
Answers
Origin; Silt suspended in the water surrounding a coral reef near the coast of a small island community in the Caribbean Sea, Effect on one organism; Silt suspended in the water can have negative effects on the coral reef ecosystem. and Effect on humans; The silt suspended in the water can also have negative effects on humans.
Effect on one organism; Silt suspended in the water can have negative effects on the coral reef ecosystem. Silt can reduce the amount of light available to the coral and other photosynthetic organisms, hindering their ability to produce energy through photosynthesis. Additionally, silt can clog the coral's feeding and respiratory structures, causing them to starve or suffocate.
Effect on humans; The silt suspended in the water can also have negative effects on humans. Silt can reduce the water quality, making it cloudy and turbid, and reducing visibility for swimmers, divers, and snorkelers. Silt can also smother and kill seagrasses and other plants, which provide important habitat and food for fish and other marine animals, potentially reducing the amount of seafood available for human consumption.
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The plant shown in the photo is a vine. It can grow where
there are many other plants and plenty of water year-
round.
alla
Answers
C) The type of ecosystem that is more likely to have a large number of vines that can grow where there are many other plants and plenty of water year-round is a rainforest.
Rainforests are among the most biologically different ecosystems on Earth, home to millions of species of shops and creatures, numerous of which are set up nowhere differently. Vines are an important element of the rainforest ecosystem, serving as a source of food, sanctum, and niche for numerous creatures.
Some exemplifications of common rainforest vines include lianas, which can climb up to the cover of trees and give a ground for creatures to cross from one tree to another, and epiphytes, which grow on trees and can give a home for insects, catcalls, and other brutes. still, rainforests are under trouble from deforestation, niche destruction, and climate change.
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Which of the following statements is not true?
A.
Cells vary in their shapes and functions.
B. In all living things, genetic instructions, genes are stored in DNA molecules.
C. The fundamental units of life are cells.
D. The entire library of genetic information in its DNA is known as the cell's genome
E. Prokaryotes do not have DNA.
Answers
Answer:
The statement that is not true is E. Prokaryotes do have DNA. It is usually found in a single circular chromosome in the nucleoid region of the cell.
Explanation:
Prokaryotes are unicellular organisms that lack a membrane-bound nucleus and other complex cell structures. They are the simplest type of organism and include bacteria and archaea. Despite their simplicity, prokaryotes have a variety of shapes and can carry out all the processes necessary for life. They have DNA, which contains their genetic information. In prokaryotes, the DNA is usually found in a single circular chromosome in the nucleoid region of the cell. This is different from eukaryotes, which have multiple linear chromosomes contained within a membrane-bound nucleus.
Received message. Sure! Prokaryotes are unicellular organisms that lack a membrane-bound nucleus and other complex cell structures. They are the simplest type of organism and include bacteria and archaea. Despite their simplicity, prokaryotes have a variety of shapes and can carry out all the processes necessary for life. They have DNA, which contains their genetic information. In prokaryotes, the DNA is usually found in a single circular chromosome in the nucleoid region of the cell. This is different from eukaryotes, which have multiple linear chromosomes contained within a membrane-bound nucleus.
The image below shows villi within a fold in the lining of the small intestine.
An illustration depicts a series of villi in a fold in the lining of the intestine.
What is the function of folds and villi?
A.
trapping food particles that flow through the small intestines
B.
increasing surface area to improve nutrient absorption between the digestive and circulatory systems
C.
allowing particles in the small intestines to flow from the jejunum to the ileum
D.
expanding volume to increase gas exchange from the respiratory system to the digestive system
Answers
The small intestine is the largest part of the digestive tube. Its walls are folded and covered by villi, which increase the absorption area. B. increasing surface area to improve nutrient absorption between the digestive and circulatory systems.
What is the small intestine?
The digestive tube is approximately eleven meters long, from the mouth to the anus.
The small intestine is the longest organ of the digestive tube and contains several folds.
Its first portion, the duodene, receives secretions from intestinal glands, such as bile and pancreatic juices, and mixes them with the digestive juices of its production. All these secretions carry large amounts of enzymes that will degrade food and transform it into soluble substances, such as amino acids.
The reason for being so long is that this is the portion of the tube where nutrient absorption occurs. The intestine walls are covered by villi that increase the absorption area. It also transports water from the blood to the intestinal tract, which helps in food decomposition.
The correct option is B. increasing surface area to improve nutrient absorption between the digestive and circulatory systems.
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Answer:
The correct answer is B
I did the test
From which direction would weather come to a city at 65-degrees north?
Answers
Weather in the northern hemisphere comes in the west to east direction.
The weather is affected mainly by the type of wind and the energy radiated by the earth in that region.
The rotation of the earth and Coriolis force affect the direction of a wind, making it flow in the counterclockwise direction.
Thus, the wind flows from the subtropic belt to the sub-polar belt, in the west to east direction. Such winds are known as the westerlies.
Energy that is absorbed by the earth's surface is radiated back into the atmosphere. Due to the rotation and revolution of the earth, there is a variation in the energy absorbed and given back. This also contributes to the weather of an area.
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This question: 1
point(s) possible
This passage, Aquatic Food Supplies, is from a geography textbook
Review the passage as needed
Subr
What is the implied meaning of this statement from paragraph 47
A deluge of modern, highly capitalized fishing threatens to drown traditional fisherman in a sea of despair
A. Certain hardshes and experiences are shared by people who practice traditional fishing methods
B Severe storms present a great risk to people who practice traditional fishing methods
Nex
Answers
This passage shows that certain difficulties and experiences are shared by people who practice traditional fishing methods, as shown in option A.
What does the passage show?Fishing methods have evolved and modernized.Traditional fishing has lost space in the market.The text shows how the techniques and resources used to promote fishing have been modernized and become faster and more efficient to contain the demands of the capitalist market.
Traditional fishing has not been able to keep up with this evolution, which has created difficulties for traditional fishermen who have traditional fishing as their main source of income.
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IV. Passive Transport- For each type of passive transport below, determine if it's osmosis, facilitated dif
or simple diffusion. Write the name of the process in the box at the top of each section of the diagram,
rectangles, draw an arrow depicting which direction the molecules will move across the membrane.
13
H₂O
000
ISISISTS
ISISISAL
O
Cell Structure and Function:
Ce
Cell Transport 20
(14
13541
sugar
1 SUST'S
21212121212127
15
1212121
>
Nam
1. Hom
L Th
thir:
Gi-
Answers
Osmosis, facilitated diffusion, and simple diffusion occur naturally and without the use of energy (ATP) by the cell, which is why they are classified as passive transport mechanisms.
What is passive transport?Passive transport includes osmosis, facilitated diffusion, and simple diffusion.
Osmosis is the passive movement of water molecules from an area of higher concentration to an area of lower concentration through a selectively permeable membrane.
Facilitated diffusion is the passive movement of molecules across a cell membrane with the help of transport proteins.
Simple diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration, down the concentration gradient, without the aid of a transport protein.
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As you know bone marrow makes red blood cells, white blood cells and platelets and as you grow it begins to store fat. What do you think a bone marrow transplant will allow the recipient to do?
short explanation thx
Answers
Answer:
A bone marrow transplant allows the recipient to receive healthy bone marrow from a donor. This can be life-saving for people with certain types of cancer, genetic disorders, or other conditions that affect the bone marrow's ability to produce blood cells. The transplanted bone marrow can restore the recipient's ability to produce healthy blood cells and improve their overall health and quality of life.
