In evolutionary theory, adaptation is the biological mechanism by which organisms adjust to new environments or to changes in their current environment. The idea of natural selection is that traits that can be passed down allow organisms to adapt to the environment better than other organisms of the same species.
Therefore, the answer is :
Adaptations are mostly random, as they are genetic. They are written in the DNA. Changes in genes are random. If a mutation happens and the offspring of two parents has a mutation, sometimes that mutation will help it live.
While exploring a rock formation, Hiroto finds a rock that has footprints pressed into it. A geologist tells Hiroto that the rock is millions of years old. Which of these claims
is correct about Hiroto's find?
It is not a fossil because footprints are not fossils.
It is not a fossil because only whole organisms are fossils.
It is a fossil only if Hiroto finds actual parts of the organism in rocks nearby.
It is a fossil because footprints of organisms from million of years ago are considered to
be fosss
Answer:
5 is the answer
Explanation:
Answer:
message me on ig
Explanation:
she.hatezay ill help you there
true or false: alleles for the same trait are at different locations on homologous chromosomes
Answer:
TRUEExplanation:
I HOPE ITS HELP YOU;)
what organelle ships proteins where they are need?
Answer:
The endoplasmic reticulum (ER) is involved in the synthesis of lipids and synthesis and transport of proteins.
The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell.
Vesicles are also used as chemical reaction chambers.
Explanation:
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Which answer choice accurately depicts the sequence by which blood moves from the pulmonary vein to the body tissues?
Answer:
See the answer below
Explanation:
Oxygen-rich blood flows from the lung through the pulmonary vein to the left atrium of the heart. From there, the blood is pumped through the mitral valve to the left ventricle. The contraction of the left side of the heart sends the oxygenated blood out of the left ventricle through the aortic arch to the major arteries designated to carry blood to the major parts of the body. From the arteries, blood moves to the capillaries and then to the various tissues of the body before returning back to the heart through the vein.
Thus, the sequence of flow of blood from the pulmonary vein to the body tissues can be summarized as:
Pulmonary vein -> Left atrium -> Arteries -> Capillaries -> tissues
Nonresistant starch is normally completely digested, and then absorbed into the bloodstream through the wall of which digestive organ? (From Gizmo)
Options (Only choose one):
stomach
large intestine
small intestine
esophagus
2 differences between
monocotyledondus and dicotyledonas plants
Answer:
1)The monocot embryos have a single cotyledon.
The dicot embryos have a pair of cotyledons.
monocotyledons
2)They have a fibrous root system.
dicotyledonous.
They have a tap root system.
If sperm and egg cells have half of the number of chromosomes found in other body cells, how do gametes form?
__H2SO4+__NaNO2= __HNO2+___Na2SO4
(fill in the blanks, and balance the equation)
1 H2SO4 + 2 NaNO2 ---> 2 HNO2 + 1 Na2SO4
In the ocean near Antarctica, small crustaceans called krill eat algae and other phytoplankton. Krill are eaten by
many animals in the ocean, including blue whales, penguins, and fish such as herring.
Based on this information, which food web correctly shows the flow of energy in this ecosystem?
Answer: C
Explanation:
The arrows are suppost to be pointing up
The correct food web shows the arrows pointing down; option A.
What is a food web?A food web is an interconnected number of food chains showing how organisms depend on each other for food.
Since the krill depends on algae and phytoplankton for food, the arrows will point down.
And since other organisms like penguin and blue whales depend on the krill for food, the arrows will point down towards the krill.
Therefore, the correct food web is option A.The
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ALL of the following conditions can lead to a dramatic decline in the size of the population for
a given species EXCEPT...
-Pollution
-Eradication of invasive species
-Loss of habitat.
-Overhunting
-Climate change
Answer:
Pollution
Explanation:
My teacher is bugging me to answer this question help
This map shows the counties in Montana that are prone to dam failure. If you were in charge of flood control in Montana, where would your biggest areas of concern be? What other data would you collect about these areas or about local weather patterns to help you make a flood-control plan for the state?
Answer:
The focus would be the western side of the state and several counties in the central part of the state because there are many high-risk dams in these areas. Knowing what communities and structures are located around these dams, the average precipitation rate, and projected rainfall totals would be helpful in designing a flood-control plan. Knowing the age and condition of each dam would be important for setting priorities in the plan.
Which explanation best identifies the relationship between mitosis and
reproduction? *
A.Mitosis is a form of sexual reproduction because the daughter cells form from one
single parent cell.
B.Mitosis is a form of sexual reproduction because the daughter cells are genetically
different from the parent cell.
C.Mitosis is a form of asexual reproduction because the daughter cells form a new
nuclear membrane after reproduction.
D.Mitosis is a form of asexual reproduction because the daughter cells are genetically
identical to the parent cell.
Answer:
D.
Explanation:
Mitosis three main functions are growth and repair of cells, and asexual reproduction for the single celled organisms.
The daughter cells have same chromosomes/genetics.
Example: repair and growth of skin, red blood cells etc.
Answer:
It's D
Explanation:
3. Explain the role of organisms in the carbon
cycle and oxygen cycle
What organism? If its plants, they give oxygen during the day and carbon dioxide in the night. While animals give carbon dioxide but take oxygen from the air. These carbon dioxide gas and oxygen gas go to the atmosphere and affect the carbon cycle and oxygen cycle.
Here is the cycle if you want to know more
Plants (give out oxygen) -> Animals (Use oxygen) + (given our carbon dioxide) -> plants (take oxygen)
and so on
Answer:
Plants take carbon from the atmosphere in the form of carbon dioxide during photosynthesis. Plants and animals both release carbon dioxide back into the atmosphere through the process of respiration. When organisms die, some of the carbon in their bodies is stored in the soil, which can be reintroduced into the atmosphere through soil respiration.
Explanation:
sample response
The early ancestors of horses showed the presence of digits on their limbs, while modern horses have hooves. What are likely possible reasons for this change?
Answer:
The digets were most likely not needed anymore so as the horses evolved hey gain other traits to help them survive.
Why are stabilizing proteins neeed to keep the DNA strands separated?
Single-stranded DNA-binding proteins are protected exactly tightly to DNA, but with extremely little carefulness for individual nucleotide sequences.
What is DNA?
They accomplish this by interacting strongly with the DNA backbone, via hydrogen bonds with the ribose and phosphates and complementary control interactions with the phosphates.
When the Proteins of DNA Replication DNA Helicases. These proteins attach to the double-stranded DNA and facilitate the separation of the two strands. DNA single-stranded critical proteins.
Although, These proteins bind to the DNA as a stable tetramer the single-stranded structure is produced by the action of the helicases.
Single-stranded DNA-binding proteins (e.g., [RFA] eukaryotic replication factor A) then stabilize the decompressed template DNA, maintaining it in an extended single-stranded state so that it can be simulated by the polymerase.
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When alleles are neither dominant or recessive, so both alleles are expressed, is
called what?
I
Answer:
hmoocigtoos
Explanation:
homocigotios
Can someone help me on this hw plz
Explanation:
Men are expected to do work that women cannot do. For example going outside and earning money or take decisions that effect the family. These are the thoughts of society and are mostly implemented in households.
Being masculine means that men comparatively have a strong physical ability than women. They can do heavy duty works with ease
Women are expected to sit in the house. According to society women are naive and need to be under the protection of man. Women are expected to be good mothers and obedient wives. They should be able to run the house well.
Being feminine means that women is very delicate and sensitive like a flower. A man has to nourish her and take care of her while the woman will become a beautiful flowers and fill the house with a strong fragrance.
Apart from these men and women are free to do what ever they want because in the 21st century not a lot of these old gender roles are followed. Sometimes the roles get swapped and women work outside just because they want to or because of the economic conditions.
I hope you found this useful
Answer:
men are supposed to be super tough and not cry ( I find that a wife's tale) being masculine means be tough and buff.
women are supposed to clean and cook and be a stay at home mom (also odd)
to be feminine means to be nice cry and happy.
A femur is a leg bone found in a human skeleton. When evaluating the human body's levels of organization, a femur is best classified as —
A.
an organ, because it is part of the skeletal system.
B.
an organ system, because it is composed of many cells.
C.
an organelle, because it is composed of many tissues.
D.
an organism, because it is part of the skeletal system.
Answer:
Option A
Explanation:
The femur is classified as an organ, because it is part of the skeletal system
The level of organization is the order that includes cells, tissues, organs, organ systems, and organisms. The femur is a leg bone which is an organ which is a part of organ system called the skeletal system.
What is skeletal system?The basic framework of body is skeletal system, which is consists of bones, connective tissue, tendons, ligaments, etc.
The four main parts of this system include:
Bone.Ligament.Tendon.Joint.The femur is a leg bone which is an organ that is a part of an organ system called the skeletal system.
Thus, the correct option is A.
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Which two statements are true of fossilization?
A. Many types of organisms never form fossils.
B. Animals with soft bodies fossilize easily.
c. Conditions must be perfect for a fossil to form. D. All fossils of fish are found near water.
Answer: c and a
Explanation:
Answer:
It's A and C.
Explanation:
PLEASE HELP ME!!!!
What would happen to the members of a food web if most of the trees died?
A. only the trees will be effected
B. only things that eat tree leaves will have less to eat
C. Nothing will happen
D. The whole food web will be disrupted
How many total ATOMS are represented?
2Fe(NO3)2
i think 2 atoms
one is 2Fe
second is NO3
_____ allows the cell to grow larger and replicate its DNA in order to prepare for cell division, known as _________. The __________ is the cell that divides to become two new _________.
Answer:
_Mitosis_ allows the cell to grow larger and replicate its DNA in order to prepare for cell division, known as __meiosis__. The __parent cell_ is the cell that divides to become two new _daughter cells__.
Explanation:
The excerpt explains cell division. Let us define some of the terms used:
Mitosis: Mitosis is a stage in the cell cycle where a parent cell divides/replicates into two identical daughter cells. They are identical because they contain the same number of genetic information after division. Mitosis is responsible for cell growth in all somatic cells
Meiosis: Meiosis is a type of cell division in germ (reproductive) cells where the parent cell divides into two daughter cells which contain half the number of genetic information (haploid) as the parent cell.
Parent cell: This refers to the original cell that undergoes division into two or more daughter cells
Daughter cells: The daughter cells are the resulting cells produced after cell division.
For a better understanding of the whole cell division cycle, please read-up the stages contained in both the mitosis and meiosis.
Help!!! I’m not sure how to answer this worksheet
Answer:
ncisuzlxfbnusJZbcxnuvjszncjx bni
Explanation:
A group of four students is participating in a marble race. Each marble has a different mass and the same force is applied to each marble.
Marble Data
Marble
А
Mass
(9)
30
50
70
Force Applied
(N)
60
60
60
F
H:T:
mxa
B
С
D
90
60
Which marble will experience the least acceleration?
O Marble A
O Marble B
Marble C
Marble D
Answer:
Marble D
Explanation:
According to this question, a group of four students is participating in a marble race. Each marble is said to have different mass but the same force were applied to each of them.
The relationship between the mass, force and acceleration of an object has been explained with the equation: F (force) = mass (m) × acceleration (a).
F = ma
Hence, a = F/m
Based on this, with a constant force, the acceleration is inversely proportional to the mass of an object. This means that when the mass increases, the acceleration decreases and vice versa. Based on the table showing the value for mass and uniform force for each marble, the marble with the highest mass (90) will have the least acceleration (0.66666). This marble is MARBLE D.
Explain how a scientist might use a karyotype to study genetic disorders.☜(ﾟヮﾟ☜)
Answer:
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i lov
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u
Explanation:
identify one organism from each of the six periods of the paleozoic era
Answer:
The Paleozoic is divided into six periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous (in the U.S., this is divided into the Mississippian and Pennsylvanian Periods), and Permian. Most of these names derive from locations where rocks of these ages were first studied.
i hope this was helpful
Some species of hover flies resemble wasps in body coloring and shape.
How does this characteristic appearance most likely serve as a useful adaptation to some species of hover flies?
a
They are able to pollinate the same flowers as wasps.
b
They can interbreed with wasps and increase species diversity.
c
They can colonize wasp nests without being detected.
d
They are mistaken for wasps and avoided by predators.
Answer:
D they are mistaken by wasps
The most likely explanation for why some species of hover flies resemble wasps in body coloring and shape is that they are mistaken for wasps and avoided by predators (Option D).
What is adaptation?Adaptation refers to the process of change in an organism's traits or characteristics over time in response to environmental pressures such as competition, predation, or changing resource availability. Adaptations can be physical, physiological, or behavioral, and they can help an organism to better survive and reproduce in its environment. For example, an organism that lives in a dry and arid environment might develop adaptations such as a deep root system to tap into subterranean water sources or a reduction in body size to reduce water loss through respiration.
Adaptations can occur through natural selection, where traits that are advantageous for survival are more likely to be passed on to future generations, or through other mechanisms such as genetic drift or mutation.
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which statement best describes the difference between the sympathetic and parasympathetic nervous systems?
Parasympathetic system calms you down lets all your organs have the same amount of oxygen delivered. The sympathetic system gets your muscles moving and makes you excited.
Why do you think eating beef and dairy from cows that are fed corn and soy has such a high environmental impact compared to eating vegetables?
Answer:
because it has more nutriants and helps them get fat more.
Explanation:
read it
