Answer:
your answer would be These external agents of genetic change are called mutagens. Exposure to mutagens often causes alterations in the molecular structure of nucleotides, ultimately causing substitutions, insertions, and deletions in the DNA sequence.
i don't know if this is correct or not let me know please.
Explanation:
Fossils are usually
usually found in
Fossils are usually found in Sedimentary rock.
sedimentary rock
Explanation: Most fossils are found in sedimentary rock. Sedimentary rock is formed by dirt (sand, silt, or clay) and debris that settles to the bottom of an ocean or lake and compresses for such a long time that it becomes hard as a rock. Limestone and sandstone are types of sedimentary rock that commonly have fossils.
Many different types of mutations can occur within the body. Sickle cell anemia is a disease that occurs when a mutation in a base pair of the hemoglobin beta gene causes a single replacement of the amino acid glutamic acid by the amino acid valine. As a result of this mutation, the individual’s blood cells take on a sickle shape under certain conditions and form clusters that can block blood vessels and cause organ damage.
The mutation of sickle cell anemia. Red blood cells.
Which type of mutation causes sickle cell anemia?
silent
missense
insertion
Answer:
B. Missense
Explanation:
A common test for liver function involves sprinkling sulfur powder onto a sample of urine (mostly water with dissolved bodily waste). Sulfur powder sprinkled on a sample from an Individual with impaired liver function will sink because the urine contains a high level of bile salts, while the sulfur powder sprinkled on normal urine samples will float.
Which of the following best explains why bile salts cause the sulfur powder to sink?
A. Bile salts decrease the surface tension of the urine sample.
B. Bile salts increase the water potential of the urine.
С. Bile salts increase the density of the urine sample.
D. Bile salts decrease the strength of the covalent bonds within a water molecule.
Answer:A- Bile salts decrease the surface tension of the urine sample.
what are the sections on chromosomes? genes or DNA?
Answer:
genes
Explanation:dna whatttt
Answer:
Each section of a chromosome that contains the code for the production of a particular protein is called a gene . Each chromosome is made from a single molecule of DNA, but when a cell is ready to divide, the DNA copies itself, then coils and condenses to form the chromosomes that we see in micrographs .
Explanation:
Soil is a renewable resource that can be used in a sustainable manner.
Answer: Soil is a non-renewable resource. Its preservation is essential for food security and our sustainable future Soil is a finite resource, meaning its loss and degradation is not recoverable within a human lifespan.
Explanation:
What usually compresses the sedimentary rock layers?
Answer:
The more sediment accumulates, the more pressure is put on the lower layers
Explanation:
Which two words are paired correctly?
vertebrate, endoskeleton
invertebrate, endoskeleton
vertebrate, autotroph
invertebrate, autotroph
Answer:
I think its B...
Explanation:
Answer:
B.
Explanation:
I'm pretty sure its this one, tell me if I am wrong
Which of the following is an example of passive transport across a membrane?
a
the movement of H+ into a thylakoid disc during photosynthesis
b
the uptake of glucose in the intestine
с
the uptake of mineral ions into root hair cells of plants
d
the movement of water from the descending loop of a nephron into the interstitium
Answer:
B
Explanation:
i think it is B but i don't really know
Which of the following is not a product of cellular respiration?
A) CO2
B) energy
C) CoH 1206
D) H2O
Answer:
C) CoH 1206 is not a product of cellular respiration
PLS Mark me as BRAINLIAST
can someone pls help me
This water bottle has a mass of 0.5 kg. If the net force acting on the bottle is 5 N to the right, what is the bottle's acceleration?
(Hint: Use the formula a = ...)
A. a = 50 m/s^2 right
B. a = 2 m/s^2 left
C. a = 10 m/s^2 right
D. a = 10m/s^2 left
Hey, do you have the answer to this question?
Which animal would have the greatest chance of survival?
Answer:
An animal that Is fed through a food web I guess
Which of the following proteins bind to molecules or ions that
change their conformation and carry them across the
membrane?
Answer:Carrier proteins bind specific solutes and transfer them across the lipid bilayer by undergoing conformational changes that expose the solute-binding site sequentially on one side of the membrane and then on the other.
Explanation:
Which scientific design has both practical limitations and limitations due to scale?
A.) studying the effect of bleach on the growth of mold spores
B.) exposing cultures of duckweed to different intensities of light
C.) observing the replication of DNA molecules with a hand lens
D.) using colored marbles to model a cross between two colors of rabbits
Answer:
c. observing the replication of DNA molecules with a hand lens
hope this helps :)
Explanation:
Answer:
C
Explanation:
These students are playing tug-of-war. What will cause one side to win the game?
A. A net force of zero
B. A net force other than zero
C. No applied forces
D. Balanced forces
B. A net force other than zero
Hope this will help you :D
Answer:
B
Explanation:
Just took the test on A.P.E.X
Hope this will help!
Farmers can store food for when it is difficult to grow. True or false?
Answer:
True
Explanation:
Because my uncle was a farmer.
Answer:
ture
Explanation:
i think hope it is right
Which statement best describes cancer cells?
A.cells that go through mitosis successfully
B.cells that continue to replicated even when not needed and does not stop
C.cells that move to G0,the resting phase
D.cells in hypotonic, solution to burst
Answer:
B!
Explanation:
Cancer is a essentially a mistake in a cell's DNA. This is very gradual, and takes a while. The immune system deals with most of them, but some slip out of reach and continue to mutate until they grow into tumors, or large pockets of cancer cells. Since their genetic code is very messed up at this point they have no limitations on growth.
P.S. This is my first biology answer! Did I explain it good enough?
Which of the following is NOT something you would find a "fluid mosaic" cell membrane?
Answer:
They can be attached to the ends of integral proteins, or not, and help with transport The fluid mosaic model of the cell membrane is how scientists describe what the If you were to zoom in on the cell membrane, you would see a pattern ofc These kinks play a role in membrane fluidity because they increase the space
Explanation:
Which is a likely limitation of this model?
It does not show which countries are to the north and south.
It does not show America's major rivers.
It does not show mountainous regions.
It does not show the oceans surrounding America.
Answer:
it does not show mountainous regions
In which situation would artificial insemination most likely be used over other forms of treatment?
A.
A woman's ovaries do not release any eggs.
B.
A man's testicles have not properly descended, lowering sperm count.
C.
There is a blockage in the fallopian tubes.
D.
The mucus that helps the sperm travel to the uterus is too thick.
Answer:
B
Explanation:
artificial insemination is only used when a man is infertile
Which layers of the atmosphere does the temperature decrease the higher you go?
Answer:
troposphere
Explanation:
The lowest layer is the troposphere where most of the atmospheric gases and all of the planet's weather are located.
Pls mark as brainiest thanks!
A reduction of the amount of product of a particular gene is observed due to a mutation. This type of a mutation is called ____
Answer:
Deletion
When a small segment of chromosome is missing a mutation is called deletion. Since chromosome are made of DNA and DNA constitutes genes so Genes are actually present on chromosomes and when a small segment of chromosomes went missing reduced amount of genes is observed
Which component of the blood is part of the body’s immune system?
Answer:
White Blood Cells
Explanation:
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Brainliest answer
How much time will 48.5 million years ago will be at an specifici year.
Proper question or report
Answer:
the report gives particular attention to conditions in low- and ... However, appropriate care for people with NCDs is lacking in many settings, ... By 2020, this number will increase to 7.5 million, accounting for 10% of all ... people ≥ 30 years old with a 10-year risk of fatal or nonfatal cardiovascular events.
Explanation: hope it helps
Answer: Well, it is not determine how much exactly would 48.2 million years ago, but I believe this will be by the beginning of Eocene Period.
Hope this helps;)
explain
what could happen to the community
if all the hares suddenly died
Answer:
they would all be dead
Explanation:
lol this didn't help
What is cancer? Explain what a doctor means when he or she says the cancer has
"metastasized." (Provide examples)
Answer:
Cancer is a disease that has abnormal cells, that begin to divide that then becomes uncontrollable and destroy the body tissue. When cancers has "metastasized" is when it spreads from one part of the body to another part of the body.
Explanation:
As an example, when cancer starts in the lung and then metastasized to the chest or to the rest of the body.
11. Match the term with the definition regarding the anatomical position
1. Arms
A Erect
2. Eyes
B. At the sides
3. Head
c. Flat on the floor
4. Feet
D. Level
5. Body
E. Facing forward
The standard anatomical position refers to the points of reference to compare and describe parts of the body. 1.B) Arms at the sides/2.E) Eyes Facing forward/3.A) Erect head/4.C)Feet Flat on the floor/5. D) Body Level
---------------------------
There is a standard anatomical position to describe an individual's body and general anatomy.
The individual's position must be standard to allow comparisons with minimal variation while comparing or describing the anatomy and the position of different structures.
The standard anatomical position has different reference points, such as a straight head or the palms of the hands facing forward.
In the exposed example, the reference points are
1. B) Arms at the sides
2. E) Eyes Facing forward
3. A) Erect head
4. C) Feet Flat on the floor
5. D) Body Level
----------------------------
You can learn more about anatomical position at
https://brainly.com/question/19261448
https://brainly.com/question/10318862
Describe Claire's symptoms. Explain how they were related to metabolism and homeostasis.
Answer:
Claire's symptoms suggest that lately, she is not enjoying her work which she was very fond of due to her poor eyesight. She is tearful while reading, she is afraid of her role as a mother for their kids in the future, she is worried for her mother. She can not sleep without sleeping pills. she put 30 pounds as she is not active and watches television or the internet all-day.
Metabolism is the process that maintains the body and cell of an organism by involving various chemical reaction that helps in extracting, storing, and utilizing the energy. Homeostasis and metabolism are related to one another as metabolism is required to maintain homeostasis and homeostasis are required for efficient metabolism.
Match each muscle of the scapular with the correct label.
Answer:
Explanation:
1. Supraspinatus
2. Subscapularis
3. Infraspinatus
4. Teres major
What food substance do plants produce during photosynthesis?
Answer:
glucose
Explanation:
Plants, unlike animals, can make their own food. They do this using a process called photosynthesis . During photosynthesis, plants produce glucose from simple inorganic molecules - carbon dioxide and water - using light.
is protein a living cell or a virus
Answer:
Neither.
Explanation:
Proteins are molecules composed of carbon, hydrogen, oxygen, and most importantly one or more chains of amino acids. They are vital to living cells and are required in the process of making, repairing, and composing functioning tissues as well as helping them function.
I hope this helps! :)