For a mutation to affect evolution, it must provide a benefit to the organism. Hence option A is correct.
In order for a mutation to have an effect on an organism’s progeny, it must: occur in the next generation’s cells and affect the inherited material, impact the environment, and generate diversity among species.
They result in novel proteins that allow organisms to adapt to environmental changes. Mutations that are beneficial are necessary for evolution to take place. Mutations that enhance an organism’s ability to survive or reproduce are likely to increase in frequency over time.
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How do mammals conserve their heat?
Answer:
with hair or fur
Explanation:
All mammals are endothermic. They conserve body heat through their hair and fur.
What are endothermic animals?Those animals that can regulate their body temperature are known as endothermic or warm-blooded animals. They can survive even when the temperature fluctuates during seasonal changes. They can live in various climates.
When the body temperature of a mammal increases too high then this condition is called hyperthermia, and body temperature reduces too low, then it is called hypothermia.
Hypothalamus is a part of the brain that maintains the temperature of the body, it is responsible for heat production and heat loss. In mammals, heat generates during cellular metabolism. This process is called thermoregulation.
Hence, this is how mammals conserve their body heat.
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PLEASE ANSWER QUICKLY
After Dante catches the flu virus, he feels very tired and loses his appetite. His body aches and he gets a high fever.
Which best describes Dante's symptoms?
they are a response to an infection, which is an internal stimulus
they are a response to being tired, which is an external stimulus
they are a response to hunger, which is an internal stimulus
they are a response to an illness, which is an external stimulus
Answer:
They are a response to an illness
Answer:
a
Explanation:
What is the difference between the digestive system and the immune system ?
PLEASE HELP!!!
Answer:
Your digestive tract has an important relationship with your immune system, since the digestive tract is one of the mechanisms through which you're exposed to tremendous numbers of pathogenic organisms each day. The immune system works with the digestive tract to help protect you from infection by these potential invaders.
Explanation:
Hope this helps.
Hormone that increases the size of the Graafian follice
Can someone please label all of the steps of mitosis
Answer:
These phases are prophase, prometaphase, metaphase, anaphase, and telophase. Cytokinesis is the final physical cell division that follows telophase, and is therefore sometimes considered a sixth phase of mitosis.
● Describe the steps of bacterial infection.
o You must include answers to the following questions in your response.
▪ Can bacteria affect any cell? How does it target?
▪ What causes the damage to your tissues?
Answer:VBacteria are living things that have only one cell. Under a microscope, they look like balls, rods, or spirals. They are so small that a line of 1,000 could fit across a pencil eraser. Most bacteria won't hurt you - less than 1 percent of the different types make people sick. Many are helpful. Some bacteria help to digest food, destroy disease-causing cells, and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese.
But infectious bacteria can make you ill. They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick. Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli.
Antibiotics are the usual treatment. When you take antibiotics, follow the directions carefully. Each time you take antibiotics, you increase the chances that bacteria in your body will learn to resist them causing antibiotic resistance. Later, you could get or spread an infection that those antibiotics cannot cure.
Gas exchange is a primary example of simple diffusion, the exchange of _________ & __________ fuels the cellular processes such as photosynthesis and cellular respiration.
gas exchange is a primary example of simple diffusion,the exchange of *oxygen* and *carbon dioxide* fuels the cellular processes such as photosynthesis and cellular respiration
Answer:
"Oxygen", and "Carbon dioxide"
Explanation:
Hope this helps
What is cancer and why does it happen?
Answer:
Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body's normal control mechanism stops working.
(iii) Humans have four types of teeth. State which type of tooth is mainly responsible for the digestion named in (a) (ii) above.
Answer:
als you hage to do is ask internet it eill tell u
Which of the following are forms of money? Select all that apply.
A. loans
B. goods
C. credit cards
D. banks
E. debit cards
F. checks
G. cash
Plants that live just one year are known as
what does hertzsprung-russell diagram display?
A.the distance between Earth and other stars.
B.who discovered each star.
C.temperature and luminosity of may stars
PLEASE HELP!! Much appreciated!
Answer:
The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass.
Explanation:
13. How does the protein p53 act as a negative regulator?
Answer:
The major negative regulator of p53 is the Mdm2 proto-oncogene. Mdm2 is transcriptionally induced by p53, thus p53 triggers its own destruction through a negative feedback loop. This feedback loop leads to oscillations in the expression of both proteins following DNA damage.
Explanation:
Deer eat grass, leaves, and acorns. They are eaten by wolves and coyotes. Deer
are
A. primary producers
B. secondary producers
C. primary consumers
D. secondary consumers
Answer:
Primary consumers
Explanation:
Producers create their own food/energy source. Example: grass
Primary consumers eat producers. Example: rabbits
Secondary consumers eat primary consumers. Example: snakes
BIO HELP
right answer gets brainliest
Which statement best describes what is happening in the cell above?
The cell is in anaphase because the sister chromatids have separated.
The cell is in prophase because the sister chromatids have condensed.
The cell is in telophase because the chromosomes are still paired.
The cell is in metaphase because the chromosomes have replicated.
Based on the stages of cell division, the picture depicts the process of anaphase because the sister chromatids have separated
What is cell division?Cell division on is the process by which cells divide to produce new daughter cells.
The process of cell division is of two types known as mitosis and meiosis.
Cell division occurs in four stages:
anaphaseprophase telophase and metaphaseIn anaphase, the sister chromatids separates.
Therefore, the picture depicts the process of anaphase because the sister chromatids have separated
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Why are saber teeth analogous structures?
Answer:
Analogous structures are structures that are similar between animals but different due to years of evolution. Like bug wings and bird wings. Saber teeth are like this with lion teeth, elephant tusks, etc
Explanation:
Thylacosmilus, a marsupial has saber teeth. Smildon which is a mammal also has saber teeth. But they do not have any common ancestor. So saber teeth do not have similar origins but have the same function and are analogous structures.
What is meant by analogous structures?The features that are similar in function but do not necessarily have structural similarity are referred to as analogous structures. They are not derived from common ancestors. The homologous structures on the other hand have similar origins and have similar functions.
The canine teeth in mammals are called saber teeth. They are found on either side of the incisors and are present in both the top and bottom of the mouth. These teeth are used by mammals to tear the food apart. They are the most pointed of all the teeth.
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Please help me and no file
Explain IN YOUR OWN WORDS why cancer drugs "turn a cancer's weakness against itself."
Answer:
There are several possible reasons for chemotherapy resistance: Some of the cells that are not killed by the chemotherapy mutate (change) and become resistant to the drug. Once they multiply, there may be more resistant cells than cells that are sensitive to the chemotherapy. Gene amplification.
If we have a vegetarian person who needs 2,000 calories a day, how many calories must the plants they eat produce?
Select one:
2,200 calories
200,000 calories
2,000 calories
20,000 calories
Answer:
as a vegetarian im confused, wouldnt it be 2,000
Explanation:
Write a 2 sentence summary about cellular respiration.
Answer:
I looked it up and this what it said
Explanation:
"Cellular respiration is the process in which cells break down glucose, release the stored energy, and use it to make ATP. The process begins in the cytoplasm and is completed in a mitochondrion. Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport."
Cellular respiration can be summarized as:
What is cellular respiration?Cellular respiration is the mechanism by which living cells break down glucose molecules and release energy in the form of ATP molecules.
Energy coupling can be seen in cellular respiration.
Glucose is broken down in an exothermic reaction and the energy released powers the endothermic reaction of ATP generation.
Glycolysis, the TCA cycle, and the electron transport chain are the three steps of cellular respiration.
From one molecule of glucose, 38 molecules of ATP are created in all three stages of cellular respiration.
(Glucose) C6H12O6 + 6O2 → 6CO2 + 6H2O Chemical Energy (in ATP)
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What does a plant need to take in to perform photosynthesis?
Answer:
A plant needs carbon dioxide and water in order to perform photosynthesis. Also, it needs sunlight to make its food.
Hope this helps!
A community is composed of
(1) organisms of the same species in an area
(2) an organism's food supply in an area
(3) all of the different organisms living in. an area
(4) the living and nonliving components in an area
which cell that was viewed is most likely a prokaryote?
Answer:
Option C, Cell Y
Explanation:
Prokaryotic cells are the most primitive type of organism that do not possess a true nucleus in them. They do not even have true membrane-bound organelles.
The prokaryotes have a plasma membrane as their protective covering which helps them to survive in extreme conditions.
They also possess a rigid cell wall which also provides them protection and rigidity. Example: Archaea and bacteria.
I hope that this helped you
Answer: ITS CELL X cell x cell x
Explanation:
because I’m not a capper
The parts of the brain that control breathing are the
O A. spinal cord and cerebellum
O
B. medulla oblongata and pons
C. cerebrum and cerebellum
OD. cerebrum and pituitary gland
1. Which cell has a cell membrane
(1 Point)
O plant
O animal
O both
2. Cell Wall
(1 Point)
O Plant
O Animal
O Both
3. Chloroplast
(1 Point)
O plant
O animal
O both
4. Cytoplasm
(1 Point)
O Plant
O Animal
O Both
Answer:
1. both
2. plant
3. plant
4. both
6.) the process by which large molecules are expelled from a cell
Answer:
A cell uses a process called exocytosis to expel large molecules. The process is shown on the right. Note how the contents are packaged in a membrane bound vesicle which fuses with the cell membrane to expel its contents.
Answer:
A cell uses a process called exocytosis to expel large molecules
Explanation:
The pigment molecules (chlorophyll) responsible for photosynthesis are located in the:
A) Mitochondrion
B) Cytoplasm of the cell
C) Stomata
D) Chloroplast
. Landfill are is a/an: (a) open area (b) high lying open area (c) open area near a river/lake (d) low lying open area
Answer:
d
Explanation:
Landfills are low-lying open areas specifically designed for the dumping of waste materials to be buried later.
Landfills can be for municipal/household wastes, industrial wastes, or for hazardous wastes. They are usually low lying to facilitate their burial after they must have been filled-up and they represent one of the oldest methods of disposing wastes.
Landfills are not just open areas, they are low-lying as opposed to high-lying, and they are not created near rivers or lakes.
The correct option is, therefore, d.
What are 5 disadvantages of solar power ?
Answer:
Location & Sunlight Availability. ...
Installation Area. ...
Reliability. ...
Inefficiency. ...
Pollution & Environmental Impact. ...
Expensive Energy Storage. ...
High Initial Cost.
Explanation:
Explanation:
first
it is weather dependent
second
it takes a lot of space
third
it is expensive
forth
it associates with pollution
fifth
it is damaged by rain and ultraviolet radiation
The tree population on Galveston Island has become more diverse due to human impact and planting non-native trees. During times of hurricane flooding, native trees that are more tolerant to salt water are surviving while non-native trees that are less salt tolerant are dying off. Which of the following explains how the tree population will continue to change overtime?
The salt tolerant tree population will decrease overtime due to increased flooding
The salt tolerant native tree population will continue to increase due to their adaptation
The non-native tree population will increase slowly overtime due to more hurricane occurrences
The non-native tree population will increase due to their adaptation
Answer:B
Explanation:
Do secondary consumers eat seed but not leaves. true or false
Answer: Secondary consumers mainly eat primary consumers and can be either carnivores or omnivores. This means that they can eat both seed AND leaves. This leading to be false.
Explanation: