Fraternal (dizygotic) twins come from 2 different fertilized eggs that both grow in the mother's womb. They have different DNA (2 eggs from the mother, 2 sperm from the father) and are not identical, although they often look alike.
Identical (monozygotic) twins come from one fertilized egg that has split in two. These twins share the same DNA and are completely identical.
Identical twins develop from the same egg and sperm,the embryos split and form identical twins ,they are the same sex. But some are fraternal twins, they develop with two diferent sets of sperm and eggs by the same parents. They can be from diferent, this is like having diferent babies at the same time.
This is the range of habitats in a region
Answer: species range
Explanation:
A species range is an area where a particular species can be found during its lifetime. Species ranges include areas where individuals or communities may migrate or hibernate.
hopefully this helps
Which is the largest organ of the human body?
Answer:
The skin.
Explanation:
The skin is the largest organ in the human body.
Answer:
skin is the biggest
Explanation:
How does the water needed to carry out photosynthesis get to leaves?
Answer:
The xylem
Explanation:
The xylem in the stem transports water and minerals from the ground up the plants, and into cells in the leaves so that photosynthesis can be carried out.
DNA: TTA CGC AAC TGG CTA ATT
mRNA: AAU GCG UGA CCG AUU AAC
Identify the type of mutation that occurred in the sequence above and evaluate the significance of these changes. (Will it have any problems in protein synthesis?)
Hint: 1st determine if it was copied to mRNA correctly. When you find the error, that is the mutation. 2nd use the chart if a different amino acid is created, this will determine if it will affect protein synthesis.
Answer:
See the answer below.
Explanation:
The correct mRNA sequence from the DNA according to the base pairing rule should be:
AAU GCG UUG ACC GAU UAA
Instead of:
AAU GCG UGA CCG AUU AAC
This thus means that some of the nucleotide bases have been wrongly substituted.
The most important change is the codon 'UUG' becoming 'UGA', while the former codes for the amino acid leucine, the latter represents a stop codon. A stop codon will result in a non-functional or defective protein.
Hence, the type of mutation is nonsense mutation which results in a sudden cessation of protein synthesis as a result of a codon being prematurely changed to a stop codon.
The significance of this kind of mutation is that a defective on non-functional protein will result which will have a serious phenotypic implication in organisms.
Which term is defined as a place where plates move apart (mostly in the sea but also on land
Angeldouglas006 plz answer this question what is soil
Answer:
Soil are tiny bits of substances that contains animal and plants parts as well as nonliving matter such as rocks. They are compressed together by years of new layers of whatever sitting on top of it (New layers of soil, etc). Erosion also assists in the forming of soil as it may take layers of soil from a forest to another for example.
Does a corpse flowers smell meet the definition of an adaptations
Name two potential pollinations???
Explanation:
male anther of a flower to the female stigma of a flower. This helps to bring about fertilization of the ovules in the flower by the male gametes from the pollen grains.
Insect pollinators include bees, (honey bees, solitary species, bumblebees); pollen wasps (Masarinae); ants; flies including bee flies, hoverflies and mosquitoes; lepidopterans, both butterflies and moths; and flower beetles. Vertebrates, mainly bats and birds, but also some non-bat mammals (monkeys, lemurs, possums, rodents) and some lizards pollinate certain plants. Among the pollinating birds are hummingbirds, honeyeaters and sunbirds with long beaks; they pollinate a number of deep-throated flowers. Humans may also carry out artificial pollination.
A pollinator is different from a pollenizer, a plant that is a source of pollen for the pollination process.
what is current pandemic disease spreading in the world
Answer:
Corona disease ( There is no specific treatment for disease caused by a novel coronavirus)
Explanation:)
The virus can cause a range of symptoms, ranging from mild illness to pneumonia. Symptoms of the disease are fever, cough, sore throat and headaches. In severe cases difficulty in breathing and deaths can occur.
.
HAVE A NICE DAY !
Answer:
Corona Virus.
Explanation:
What is the evidence for evolution?
Answer:
foills
Explanation:
provide solid evidence that organism from the past are not the same as found
step 1: bacteria through nitrogen fixation and nitrification convert nitrogen into a usable form
Answer:
Bacteria through nitrogen fixation and nitrification convert nitrogen into a usable form to be taken up by plants.Which statement describes how to appropriately handle live earthworms in a lab investigation? Pick up earthworms gently with moist hands. Place individual earthworms on the lab table while setting up equipment. Press the ends of the earthworms firmly against the table to keep them still. Hold onto earthworms tightly with metal tweezers.
Answer:
Pick up earthworms gently with moist hands describes how to appropriately handle live earthworms in a lab investigation
Hope it helps :)
The act of speech is termed
Answer:
The acts speakers perform when they make an utterance are called speech acts.
A speech act is an utterance that serves a function in communication. We perform speech acts when we offer an apology, greeting, request, complaint, invitation, compliment, or refusal. ... Here are some examples of speech acts we use or hear every day: Greeting: "Hi, Eric.
Explanation:
One important area of pragmatics is that of speech acts, which are communicative acts that convey an intended language function. Speech acts include functions such as requests, apologies, suggestions, commands, offers, and appropriate responses to those acts.
Answer: Phonation
Explanation:
What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?
Are any of these interactions between the cycles positive?
Are any negative?
What about when the nitrogen cycle is thrown off balance by the Haber-Bosch process and others like it?
How can that influence the oxygen and carbon cycles?
Are there other cycles involved that have not been mentioned in this question?
What does this discussion suggest about the nature of the Earth as one large system?
Answer:
1.Nitrification happens when soil organisms change over ammonium into nitrate. Much of the cover between the carbon cycle and the nitrogen cycle happens within the soil, in forms conducted by soil organisms. Organisms break down supplements, construct modern compounds for their possess development, and inevitably pass on.
The second question im not sure sorry- the positive and negative one ;(
3. Many human activities have a significant impact on the nitrogen cycle. Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can dramatically increase the amount of biologically available nitrogen in an ecosystem. As nitrogen makes up 78% of the atmosphere, there is no shortage of it – it just isn't in a form plants and animals can use.
4. Carbon makes its way through living things as carbon-based compounds, like vitality particles, fats and proteins, in the long run cycling its way back into the environment. Nitrogen is basically found within the air as well and enters the environments as supplements for plants. Water, nitrogen and carbon cycles. Carbon moves from the air and back by means of creatures and plants. Nitrogen moves from the environment and back by means of living beings. Water moves on, over, or underneath the surface of the Soil.
5. Carbon cycle, Nitrogen cycle, Nutrient cycle, Oxygen cycle, Phosphorus cycle, Sulfur cycle, Rock cycle, Water cycle.
6. Wind, water, and ice disintegrate and shape the arrive. Volcanic movement and seismic tremors change the scene in a sensational and frequently savage way. And on a much longer timescale, the development of earth's plates gradually reconfigures seas and landmasses. Each one of these forms plays a part within the Cold and Antarctica.
People affect the physical environment in numerous ways: overpopulation, contamination, burning fossil powers, and deforestation. Changes like these have activated climate alter, soil disintegration, destitute discuss quality, and undrinkable water. Earth's surface is the as it were territory accessible to the human race. Understanding the forms by which that environment has been made and persistently changed is critical to decide the causes of natural degradation.
11. The behavior of the land
masses over geological time
illustrates the theory of
Answer:
Continental drift theory
Explanation:
Continental drift theory refers to the movement of land masses over the earth's geological time. This movement n of the masses of the earth allows us to conclude that the continents change their shapes over time and change, including their location in different regions of the planet.
As we already know the movement of the masses of the earth is done in relation to the movement of the tectonic plates.
Pleaseee help me out.
The T allele codes for tall stems in pea plants and the t allele codes for short stems. If T is
dominant and t recessive, what percentage of the offspring would you expect to have each
phenotype from a cross of Tt x tt?
a. 75**
tall and 25% short
b. 25% tall and 75% short
C. 50% tall and 50% short
d. 25% tall and 25% short
Answer:
50% tall and 50% short.
Explanation:
T t
t Tt tt
t Tt tt
Groups of ecosystems that have the same climate and dominant species
are known as *
1 pa
Populations
Habitats
Ecosystems
Biomes
Answer: 4)Biomes
Explanation:
Groups of ecosystems that have the same climate and dominant species
are known as biomes, e.g. tundra or rainforest biomes.
Which is an example of matter cycling through the bodies of living things?
A. Whales swimming in the ocean
B. Whales eating plankton
C. People visiting the aquarium
D. Plankton moving with the tide
Answer: B whales eating plankton
Answer: I would say B. whales eating plankton
Explanation: Whales eating plankton causes the plankton to travel through the digestive tract and be converted to energy, so that answer would probably be your best bet.
Answer:
b
Explanation:
Which list shows the levels of organization of an organism in hierarchical order from left to right, from the least complex to the most complex?
Answer:
cell, tissue, organ, organ system, organism
Explanation:
organism, organ, organ system, cell, tissue organism, organ system, organ, tissue, cell cell, tissue, organ system, organ, organism cell, tissue, organ, organ system, organismI took the test and got it right on ed ...
cell, tissue, organ, organ system, organism shows the levels of organization of an organism in hierarchical order from left to right, from the least complex to the most complex.
what is the level of organization in an organism ?
Cellular organization is one of the characteristics of a living organism which states that each living organism is made up of a single cell or more than one cell.
It is made up of various components such as chemicals like micro molecule that form the macro molecule, at chemical level the structural composition are organized together to make cells
At Cellular level of organization form the tissue and it is complex to cell but simpler to organ which makeup of various together.
The cluster of interacting organs is necessary as the organ which are the structural level that individuals do the specific function.
Organs are gather together form organ system and it is a complex system made up of organs that are similar in their function.
For more details regarding level of organization , visit
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Which component of weather results in stormy, cloudy whether?
Answer:
Im pretty sure it is precipitation.
Explanation:
When precipitation occurs then we get rain, snow, or hail and usually has dark clouds.
awsere
Im pretty sure it is precipitation.
Explanation:
When precipitation occurs then we get rain, snow, or hail and usually has dark clouds.
Water makes up a large percentage of the body’s cells. For a cell to remain in homeostasis, there must be a mechanism to control water changes in the cells. The movement of water from an area of high water concentration to an area of low water concentration is . osmosis,diffusion,active transport or stable transport
Answer:
Explanation:
active transport
A _____ model places Earth at the center of the solar system, with the Sun and planets revolving around Earth. A. scale B. geocentric C. heliocentric
Answer:
B. Geocentric
Explanation:
Geo means Earth, and centric means "in the center". So a geocentric model of the solar system would mean the Earth were at the center of the solar system, with the Sun and planets revolving around the Earth.
Answer:
geocentric model
In astronomy, the geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Under the geocentric model, the Sun, Moon, stars, and planets all orbited Earth.
Hope this helps!Why did gregor mendel study pea plants?
Answer:
Explanation:
If im correct, the pea plant study was a way to use plants with their different traits to study Dominant and Recessive traits in plants.
He crossed a smoother pea with a more wrinky one and used the offspring as a way to determine dominant and recessive phenotypes.
I may be incorrect but I hope this helps!
Lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some part of the lysosome does not function properly, causing the accumulation of toxic substances in the cell and ultimately, cell death. What would be the most likely explanation as to why the lysosomes of someone with this disease are not functioning properly?
A. The enzymes of the lysosome are beginning to break down the DNA of the cell.
B. The enzymes of the lysosome are not breaking down enough toxic material.
C. The enzymes of the lysosome are breaking down too much toxic material.
D. The enzymes of the lysosome are beginning to break down the ribosomes of the cell.
Answer: The enzymes of the lysosome are not breaking down enough toxic material.
Explanation:
Lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some part of the lysosome does not function properly, and this is due to the enzymes of the lysosome not breaking down enough toxic material in Option B.
What is the significance of lysosomal storage diseases?Lysosomes are cell organelles that accumulate the cell's toxins or those that enter the cell from the outside (some bacterial particles, for example) and are broken down by the acidic pH of the lysosomes and the enzymes to keep the cell functioning properly. In the case of this disease, it does not work and damages the cell.
Hence, lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some part of the lysosome does not function properly, and this is due to the enzymes of the lysosome not breaking down enough toxic material in Option B.
Learn more about lysosomal storage diseases here.
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What group behavior is being displayed by the cattle grouping together?
Answer:
It is called a social behavior.
Explanation:
Group behavior is a term that expresses the manner of behavior among two or more interacting specie of organism to achieve a purpose. Various organisms show different group behaviors.
When cattle group together, they display a herding ungulates as the behavioral group. They come together to achieve a particular objective which could be for protection, survival, feeding etc. Thus forming a social group and interact among themselves.
Does evolution occur at the individual or population level?
Answer:
populations
Explanation:
this is because individual species are not changing. Populations are evolving. Since people in a group differ, those of the population are more able to live and replicate owing to a specific range of environmental conditions.
hope this helped!
Explanation:
the process of evolution occurs only in population and not in individuals . all single individual can not evolve alone evolution is the process of changing the gene frequencies with in a gene pool .
which is considered a carbon sink
Answer:
are natural or artificial deposits
Answer:
natural carbon sinks are plants, the ocean and soil
Which type: Land breeze or sea breeze would most likely form on a warm, cloudless, summer day? How do you know? Explain
THXSSS PLEASE HELP AND HURRY
Answer:
Explanation:
Sea breeze is a breeze that comes from the ocean to the land. The breeze is usually more when the temperature difference between land and ocean is high especially when it is summer and hot afternoon.
When the temperature is hot both land and water are been heat up, the land begin to release heat and warm air will rise over the land. Water do not get heat up easily hence the air is cooler leading to high pressure on the ocean air then blows from here to the land.
Answer:
Sea breeze.
This is because sea breeze occur on hot summer days which is due to unequal heating on the land surface and sea surface
Explanation:
Land and Sea breezes are as a result of different rate of heating on land or sea surfaces along coastal areas.
Sea breeze occur in a warm, cloudless summer days because of the unequal heating of the land and water surfaces.
During the day, the land surface heat more that the water surface. The air that is above the land become warm and it is warmer than that on the sea surface but the warm air is lighter than cool air. The warm air above the land surface rise, and the cool air on the sea surface rises and replaced the land warm air . This is sea breeze
List the different forms of potential and kinetic
energy.
Answer:
answer is below :)
Explanation:
types of potential energy:
-Gravitational potential energy.
-Elastic potential energy.
-Nuclear energy.
-Chemical energy.
- electric potential energy
types of kinetic energy:
-Flying Airplane.
-Walking & Running.
-Cycling.
-Rollercoasters.
-Cricket Ball.
-Skateboarding.
Darwin noticed that birds that were good at finding scarce food in the winter had a better chance of surviving and producing offspring. What did he call this struggle for existence?
Answer:
Natural selection.
Explanation:
