The answer to the question is that Mutagen is an environmental agent that changes DNA.
Types of Mutagens:
Physical mutagens: Ionising radiation, such as X-rays, gamma rays, and alpha particles, is one example. UV radiations can also act as possible mutagens.Chemical mutagens: Mutagens include arsenic, nickel, and chromium. Some organic chemicals, such as benzene, are also mutagenic in nature.Biological mutagens: Transposonas and viruses are two examples of biological mutagens. Furthermore, some bacteria, such as Helicobacter pylori, have been linked to an increased risk of stomach cancer.Thus we can conclude that A mutagen is a physical or chemical substance that permanently alters genetic material in an organism, generally DNA, increasing the incidence of mutations over the natural background level.
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pls helpp
The local scout troop headed out for a weekend camp out. The campers met at point
A and hiked up to point B to set up a camp site. What was the change in elevation
for these campers?
100 m
110 m
120 m
200 m
Answer:
120
Explanation:
im 100% sure
cells with all 46 chromosomes are called...
Answer:
somatic cells
Explanation:
PLS HELP ME AND I WILL MARK BRAINIEST
Answer:
1. Loan
2. Financial
3. Flexible
4. Future
5. Interest
Explanation:
Urgenttt!!! Will give brainlist to best answer!!
Early agricultural meals usually took what form?
A roast plus side dishes.
A single food item such as
tubers or beans.
Stew with multiple ingredients.
Bread made from whatever grain was most common.
Answer:
Stew with multiple ingredients
Answer:
tubers and beans
Explanation:
Which contains alleles A and B in the same genotype what is this phenomenon called
Answer:
Codominance, in genetics, phenomenon in which two alleles (different versions of the same gene) are expressed to an equal degree within an organism. As a result, traits associated with each allele are displayed simultaneously. An example of codominance is seen in the MN blood group system of humans.
Explanation:
How does gas exchange occur in plants?
Plants obtain the gases they need through their leaves. They require oxygen for respiration and carbon dioxide for photosynthesis.
Explanation:
The gases diffuse between the cells spaces of the leaf through pores, which are normally on the underside of the leaf - stomata. From these spaces they will diffuse into the cells that require them.
Which of the following describes how jellyfish have a different adaptation to moving in the ocean than sharks and dolphins?
Question 8 options:
Jellyfish have a streamlined shape for moving.
Jellyfish use their fins to push themselves through the water.
Jellyfish fill the top part of their body with water and squeeze the water out to move.
Jellyfish use a tail to push up and down for swimming.
NO LINKS
Answer:
The answer is C
Explanation: It seems the most reasonable
I took the test and got it right
If I am wrong please correct me
Have a great day!
The only statement which describes how jellyfish have a different adaptation to moving in the ocean than sharks and dolphins is:
Jellyfish fill the top part of their body with water and squeeze the water out to move.
What is adaptation?This is the ability of an organism to successfully adapt and survive in a particular environment.
Within the context of this medium, jellyfish bodies are:
Tansparent They have long tentaclesSo therefore, jellyfish fill the top part of their body with water and squeeze the water out to move.
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Which box has the greatest mass
Answer:
E is the answer, hope it helps!
Answer:
The answer is C.
Explanation:
This is because while c isn’t the largest box by any means if you look at it all of the molecules are very packed together while the bigger boxes like d. E. F. Are very loosely packed.
Hope this helps.
Choose the best response on how sea otters and sea turtles deal with the salty ocean.
Question 7 options:
The sea otters use their eyes to secrete salt and the sea turtles have an extra large kidney.
The sea otters have an extra large liver and the sea turtles have an extra large kidney.
The sea otters have an extra large kidney and the sea turtles use their eyes to secrete salt.
The sea otters have an extra large lung and the sea turtles have an extra large kidney.
Had to repost because someone posted a link to a fake website (i tested it in a virtualmachine) and now its not appearing in recommended anymore since it says answered
NO LINKS
IF YOU SEND A LINK I WILL REPORT
Answer:
The sea otters have an extra large kidney and the sea turtles use their eyes to secrete salt
Explanation: I took the test
if I am wrong please correct me
Have a great day!
The sea otters having an extra large lung and the sea turtles having an extra large kidney is how they deal with salty ocean.
What is Ocean?This is a vast body of salty water which covers majority of the earth surface and has different forms of life present in them.
Organisms such as sea otters have an extra large lung and the sea turtles have an extra large kidney which makes them adapt to the salty condition.
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HELP THIS IS DUE IN 30 minutes (No links or I'll Report)
In a healthy person, systolic pressure is always higher than diastolic pressure because systolic pressure measures
A) blood pressure in the artery after the left ventricle contracts.
B) the force with which blood returns to the heart and lungs.
C) the maximum rate at which the heart pumps blood.
D) the pressure in the artery after the left ventricle relaxes.
DoWn LoAd Ur AnSwEr HeRe: https://youtu.be/dQw4w9WgXcQ
Jk your actually answer is B
How many times can a single gene from
the DNA strand be transcribed by mRNA?
A. It can never be transcribed.
B! It can be transcribed once.
C. It can be transcribed 1000s of times.
D. It can be transcribed twice.
The red imported fire ant is an invasive species that has affected many native species in North America. Scientists wanted to see the effect of the fire ants on the survival of a certain kind of native bird. They treated nests of the bird with a chemical that kills the ants. They treated a different percentage of bird nests in different areas. In some areas, only 25% of the bird nests were treated with the chemical. In other areas, 100% of the bird nests were treated with the chemical.
The graph below shows the percent of birds surviving compared to the percentage of bird nests treated with the ant-killing chemical.
What conclusion about the effects of fire ants on the birds is best supported by the graph?
A.
The birds are more likely to survive when there are many fire ants, so the ants are likely outcompeting the birds for resources.
B.
The birds are more likely to survive when there are many fire ants, so the ants are likely providing resources for the birds.
C.
The birds are less likely to survive when there are many fire ants, so the ants are likely taking over the niche of the birds.
D.
The birds are less likely to survive when there are many fire ants, so the ants are likely predators of the birds.
ehhhhhhhh
ok
Explanation:
Lancelets are the only extant group of cephalochordates. True or False
Answer:
True
Explanation:
This is because Cephalochordates are the recent ancestor of lancelets. They have muscle segmented Brook.The lancelets are mostly marine organisms that live in shallow, tropical and temperate oceans. The lack a well differentiated head region but they have brain region.
One hot summer day Thomas left a glass of full of water outside when he went back to get it the next day half of the water was gone what type of interaction with the Earth system was this
A.Lithosphere-Biosphere
B.Hydrosphere-Atmosphere
Answer:
B
Explanation:
Hydrosphere-AtmosphereB. Hydrosphere-Atmosphere
The hydrosphere comprises the totality of Earth's water. The atmosphere comprises the totality of Earth's air. The liquid water in the glass that was left outside evaporated, turning into gaseous water vapor that escaped the glass. The water as a liquid in the glass and as a vapor as a gas are both part of the hydrosphere. But once some of the liquid water became gaseous water vapor, that water became part of the Earth's atmosphere.
im stuck on the first 2 answers
Answer:
Trees in and around Austin are uprooted from heavy wind
Explanation:
Goose island is already on the coast so it's used to salt water.
The birds won't become extinct in one day.
It takes a while for a river to be completely destroyed naturally.
Which element listed in the table above has an atomic mass of 79?
Answer: selenium Hope it helps
Explanation:
Some scientists studying aquatic plants notice that flooding often leads to a decrease in the rate of photosynthesis among aquatic plants. Flooding causes more sediment to be suspended in thewater. The increased sediment concentration decreases the amount of light that reaches the plants. Why does a decreased rate of photosynthesis lead to a decrease in a plant population?
A. Less water is available for adsorption
B. Less tissue for plant growth
C. Less soil is available for leaf development
D. Less energy is available for reproduction
Answer:
less energy is available for reproduction
Why do steeper mountain slopes have faster rates of erosion by
rivers and streams?
use the diagram to come up with YOUR OWN DEFINITION of nondisjunction
Answer:
The sister chromosome looks like it fails to completely split, so that shows the daughter chromosome not having either of the chromosomes
Explanation:
Which system includes all life on Earth?
A biosphere
B cryosphere
C geosphere
D hydrosphere
Answer:
Biosphere
Explanation:
contain all the planets living things
Use the drop-down menus to complete each sentence about the layers of the atmosphere.
If the
did not exist, Earth might be destroyed by chunks of rock from space.
The
is located 12 to 50 kilometers from Earth’s surface.
Both the
get colder as altitude increases.
The ozone in the
protects people from ultraviolet (UV) radiation.
The
has the highest temperature of any layer in Earth’s atmosphere.
Answer:
Mesosphere
Stratosphere
Trophosphere and Mesosphere
Stratosphere
Thermosphere
Explanation:
The Stratosphere
This extends upwards from the tropopause to about 50 km. It contains much of the ozone in the atmosphere. The increase in temperature with height occurs because of absorption of ultraviolet (UV) radiation from the sun by this ozone.
Troposphere
Earth’s troposphere extends from Earth’s surface to, on average, about 12 kilometers (7.5 miles) in height.
Mesosphere
Located between about 50 and 80 kilometers (31 and 50 miles) above Earth’s surface, the mesosphere gets progressively colder with altitude. In fact, the top of this layer is the coldest place found within the Earth system, with an average temperature of about minus 85 degrees Celsius (minus 120 degrees Fahrenheit).
Thermosphere
Located between about 80 and 700 kilometers (50 and 440 miles) above Earth’s surface is the thermosphere, whose lowest part contains the ionosphere. In this layer, temperatures increase with altitude due to the very low density of molecules found here.
Answer:
1=C
2=B
3=C
4=B
5=A
Explanation:
What are the two phases of the respiratory movement of Man? Are they the same in grasshopper or fish ?? PLS HELP ME !!GRADE 7
Answer:
Men's respiratory movement is divided into two phases: inspiration (or inhalation) and expiration (or exhalation). Men and fish have the same stages of respiratory activity because they both inhale and exhale, except for their fish, of course.
Explanation:
sorry if it is not right but hope this helps :)
Describe how the relative surface temperature and the relative luminosity of Aldebaran would change if it collapses and becomes a white dwarf like Procyon B
Answer:
Greatly affect the luminous intensity.
Explanation:
The relative surface temperature and the relative luminosity of Aldebaran will greatly decreases if it becomes Procyon B because more surface area of a star increases the luminous intensity of that star. The size of Aldebaran is 30.7 million km whereas the size of Procyon B has 8585 km which very much lower than the Aldebaran so there is a great difference in the magnitude of luminosity between Aldebaran and Procyon B. So we can conclude that the decrease in the surface area of a star will greatly affect its luminous intensity.
COMPLIMENTARY STRAND OF A T C G A C G T T A A C G
Answer:
T A G C T G C A A T T G C
Explanation:
The complimentary DNA strand. Please tell me if you wanted RNA and I will correct it!
What type of carbon-based molecule is the first to be broken down by the body's cells to provide a source of energy?
Answer: Glucose
Explanation:
The carbon based molecule which is broken by the cells of the body is glucose it is a carbohydrate that is obtained from food we consume it is stored in the form of glycogen. When the energy requirement of the body increases then glucose monomers are released from the glycogen chain so that glucose monomers can participate in the energy generation process in the mitochondria of the cell. The chemical energy so produced is ATP (adenosine triphosphate).
What happens when red blood cells decreases in the blood?
Answer:
Having a low level of red blood cells can diminish the ability of the blood to transport oxygen, which can cause the heart to come under strain as it works to get enough oxygen to the tissue. Anemia can happen with lower red blood cell count or when red blood cells dont contain enough hemoglobin.
A family purchased a frozen turkey for Thanksgiving and placed it in the refrigerator. About how long will it take to thaw a twelve-pound turkey?
Answer:
36 hours
Explanation:
Heather presented to her class a report about the pancreas. Which statement in Heather’s report was not accurate?
The pancreas has both endocrine and exocrine functions.
The pancreas regulates blood sugar concentration.
The pancreas triggers the development of secondary sex characteristics.
The pancreas helps digest fat, protein, and carbohydrates.
Answer:
C. The pancreas triggers the development of secondary sex characteristics
Explanation:
Edge 2021
The statement in Heather’s report was not accurate C. The pancreas triggers the development of secondary reproductive characteristics.
What are the different pancreas digestive enzymes?The pancreas secretes digestive enzymes in the slender instincts, these enzymes produce endocrine secretions through the hormones and pass through the blood.
Endocrine cells called pancreatic islets secrete insulin and glucagon and have endocrine functions that are formed through the hormones and pass through the bloodstream.
Thus, option "C" is correct.
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Please only answer if you know and links will be reported
Answer:
C
Explanation:
the answer is C
Which of the following is a true statement?
A. Disruptions in an ecosystem are normal and natural changes.
B. Disruptions in an ecosystem are caused by both human activity and environmental disturbances.
C. Ecosystems are complex, interactive systems that include both biotic and abiotic components of the environment. D. All of these are true statements.
Answer:
All the statements are true and the correct option is;
D. All of these are true
Explanation:
Ecosystems change over time. ... Sudden disruptions such as volcanoes, floods, or fires can affect which species will thrive in an environment. Other disruptions are caused by human activities
An ecosystem ecosystem is an area where a community living (biotic) and non living (abiotic) things such as plants, animals, other organisms, landscape, natural sources and weather interact to create an apparently sustainable system
An ecosystem undergoes several changes over time due to environmental disturbance which results in the variation of the ecosystem's structure and change rate due to the natural disturbance and/or human activity
Therefore all the statements are true.
