What kind of mutation would lead to an increase in the expression, or inappropriate expression, of a gene?.
Answer: A mutation that lowers the efficiency of a repressor of said gene
Explanation:
I hope this helps :D
how does the cell membrane of a tube worm maintains a stable environment
Answer:
The cell membrane of a tubeworm is selectively permeable and they prevent minerals in the water from flowing it in the cell of tube worms. By doing this the cell membrane protects the cell from any osmotic damage. By selectively preventing these minerals it maintains the stable environment in the cell
Part B
Put the container in a well-ventilated area or a protected area outside (such as in a garage or a shed). Make sure that the temperature in the area you choose is above freezing (0°C or 32°F.) Check the container at the end of one week, and record any changes in the water level and the appearance of the leaves and twigs. Add another two-inch layer of wet sand on top of the leaves and twigs, and let it sit to dry for two weeks.
pls help ill give 50 pts
Answer:
Snow forms when the atmospheric temperature is at or below freezing (0 degrees Celsius or 32 degrees Fahrenheit) and there is a minimum amount of moisture in the air. If the ground temperature is at or below freezing, the snow will reach the ground.
Explanation:
hope this help
A tissue through which gases are exchanged between the blood and the air in the lungs.
a) stratified squamous epithelium
b) simple squamous epithelium
c) simple culumnar epithelium
d) simple cuboidal epithelium
Answer:
B- simple squamous epithelium.
Explanation:
Alveoli consists of simple squamous epithelium which is the main site for gas exchange. Thus, the correct option is B.
Gas exchange through the process of pulmonary respiration takes place in the alveoli (singular alveolus) of the lungs.
Alveolus is made up of two types of cells - type I and type II alveolar cells.
Type I alveolar cells are simple squamous epithelial cells supported by a thin elastic basement membrane. These cells form a continuous lining of the alveolar membrane and are the main sites for gas exchange.
Type II alveolar cells are septal cells that are present in between the type I cells. They secrete a fluid to keep the surface between the cells moist and it also contain surfactants for reducing the surface tension and preventing the collapse of alveolus.
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People with free earlobes don't have any advantages or disadvantages compared to people with attached earlobes. This is an example of a ____________ mutation.
A. beneficial
B. harmful
C. neutral
Answer:
This is an example of a neutral mutation.
Explanation:
Nothing is wrong with having one or the other; it does not make anyone super human.
I hope I am right. I would not want you with the wrong answer.
What type of rock does not allow water pass through?
Answer:
impermeable
Explanation:
Answer:
Rocks that will not let water pass through them are called 'impermeable' like mudstone and granite.
Which of the following statements would best express cultural relativism? a. ""i don’t understand how they could deal with that gross food."" b. ""this is making my stomach upset just by watching."" c. ""i wonder why they decided to make food out of worm paste."" d. ""eating worms can't be nutritious.""
The best statement that expresses cultural relativism is "I wonder why they decided to make food out of worm paste.
What is Cultural relativism?Cultural relativism is the capability to comprehend a culture on its own terms and not to make conclusions using the standards of one's own culture. The purpose of this is to promote awareness of cultural traditions that are not normally part of one's own culture.
Thus, "I wonder why they decided to make food out of worm paste", expresses cultural relativism.
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What type of biological molecule is this?
protein
nucleic acid
lipid
carbohydrate
Answer:
Lipid
Explanation:
lipids are comprised of a glycerol and three fatty acid tails.
Answer:
lipid
- the fatty acids are bonded to a glycerol signifying as a lipid
Pitcher plant traps insects because it (a) is a heterotroph. (b) grows in soils which lack nitrogen. (c) does not have chlorophyll. (d) has a digestive system like human beings.
Answer:
Is a heterotroph
Explanation:
Nitrogen is a essential for plants growth so used in fertilizersPitcher plant eats other animals as it's a heterotroph and carnivorous.What are two ways that a flood can negatively impact an ecosystem?
Answer:
Floods Cause Sedimentation and Erosion.
Explanation:
marco needs to buy some cat food.At the nearest store, 3 bags of food cost 17.25$. How much would marco spend on 6 of cat food?
Answer: $ 34.5
Explanation: do it by simple unitary method
Bags. $
3. 17.25
6. X
cross multiply the both to get
3X = 6 x 17.25
3X = 103.5
X = 34.5
Hence, $ 34.5 would be spent in order to buy 6 bags of cat food.
WILL GIVE BRAINLIEST!!!!!!
Yeast is a fungus which grows inside humans digestive and reproductive track. When the yeast is in normal limits it helps to keep the bacteria living in humans in balance. A balanced human maintains homeostasis and is healthy.
What is the relationship between yeast and humans?
Answer:
I would think mutualism.
Explanation:
Because the yeast is provided a place to grow, and the human is benefitted by the yeast helping to keep balance.
List 3 facts about HIV/AIDS
Answer:
Fact: HIV and AIDS are problems in the United States. ...
Fact: HIV is not the same as AIDS. ...
Fact: HIV tests are reliable. ...
Fact: HIV cannot be cured. ...
Fact: There is no vaccine to prevent HIV. ...
Fact: People with HIV should start HIV medicine right away.
Explanation:
hope it help!
*ASAP ASAP ASAP ASAP* Pls. help me ...
Answer:
1.Prophase
2.Metaphase
3.Anophase
4.Telophase
5.Cytokinesis
In which form of reproduction is a slow reproduction process a disadvantage?
Answer:
S/reproduction occurs in many eukaryotic organisms but has the disadvantage of being a slower form of reproduction. The advantage of this form of reproduction is that genetic variation is introduced, which has a selective advantage in environments that may change.
Explanation:
the process in which organisms use chemical energy to make food is called _
Answer:
Chemosynthesis
Explanation:
The galápagos finch species are an excellent example of.
Answer:
Adaptations and selective breeding, if that is a choice for you.
Explanation:
what are the steps of creating a DNA profile
Answer:
The DNA testing process is comprised of four main steps, including extraction, quantitation, amplification, and capillary electrophoresis.
Explanation:
1. Separate white and red blood cells with a centrifuge.
2. Extract DNA nuclei from the white blood cells. ...
3. Cut DNA strand into fragments using a restriction enzyme.
4. Place fragments into one end of a bed of agarose gel with electrodes in it. 5. Use an electric current to sort the DNA segments by length.
An organism that uses CO2 for its carbon needs and sunlight for its energy needs would be called a/an
Answer:
Heterotroph
Explanation:
A heterotroph is an organism that ingests or absorbs organic carbon in order to be able to produce energy and synthesize compounds to maintain its life.
I think this is the answer. It may be autotroph if im wrong.
Which would be the best evidence that a cell is using active transport to move a substance across its cell membrane?
Α.
Substances are moving rapidly across the cell membrane.
B. ATP is being rapidly consumed near the cellular membrane,
C. Substances are moving from high to low concentrations.
D. Substances are moving through channels in the cell membrane
Answer:D. Substances are moving through channels in the cell membrane
Explanation:
In case of active transport, ATP is being rapidly consumed near the cellular membrane. Thus, the correct option is B.
What is Active transport?Active transport is the movement of molecules or ions across a cellular membrane from a region of its lower concentration to a region of its higher concentration against the concentration gradient of the molecules or ions. Active transport requires cellular energy to achieve this movement of molecules or ions. The cellular energy is supplied in the form of ATP (Adenosine triphosphate) molecules.
The transport of molecules occurs through transport proteins such as carrier proteins and channel proteins against the concentration gradient.
Therefore, the correct option is B.
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What pigment, only present in plants, makes photosynthesis possible?.
Answer: chlorophyll
Explanation: This is only found in plants. It is also used in photosynthesis.
a population is all members of one species living in particular
Answer:
area
Explanation:
It could also be environment depending on your schooling.
Hope that helps!
Answer:
area
Explanation:
i dont know i dont care
A necropsy (post-mortem analysis) of a marine sea star that died after it was mistakenly placed in fresh water would likely show that it died because:____.
a. it was so hyperosmotic to the fresh water that it could not osmoregulate.
it was stressed and needed more time to acclimate to the new conditions.
it had an immediate movement of water out of its cells after being placed in fresh water.
its kidneys could not handle the change in ionic content presented by the fresh water.
Answer:
A - I hope this helps :)
Explanation:
It could not maintain that balance that would be required in the new conditions.
Explain the Meaning
What is an heart
Your heart is an extremely important organ. It's a muscle that circulates blood throughout your body. Your heart pumps blood into your body, providing it with the oxygen and nutrition it requires to function. Your heart weighs between 300 and 450 g and is about the size of a clenched hand.
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Coral reefs are beneficial to marine life. In what way does it show in the following instances?
1. provide rich sources of marine food
2. protect the coastal areas from strong waves
3. provide passage for strong currents to coastal areas
4. serve as a breeding ground of fishes and other forms of marine life
a. 1 and 2
b. 2 and 3
c. 1 and 4
d. 3 and 4
I think it's C ( 1 and 4)
Please mark as brainliest!
Answer: 2 and 3!
Explanation:
they serve more as shelter and a place to keep marine life safe rather than provide as rich sources of marine food.
2. they protect the coastal areas from strong waves and erosion
3. their protection provides a safe passage for the strong currents to coastal areas, moving them away.
What in the atmosphere returns to earth through the process of ___
Answer: The water cycle is the endless process that connects all of that water. It joins the Earth's oceans, land, and atmosphere. ... When molecules of water vapor return to liquid or solid form, they create cloud droplets that can fall back to Earth as rain or snow—a process called condensation.
Explanation:
Precipatation
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What type of symbiosis occurs when one organism benefits and the other is harmed?
Answer:
Parasitism
Explanation:
In this a parasite takes its food or other needs from the host but later harms the host too.Some examples like leeches who takes blood from our body but harms us tooParasitism is an ecological relationship between two organisms in which one organism benefits while the other organism suffers. It may also be a type of symbiosis.
The majority of microorganisms investigated in medical microbiology are parasitic and prey on human tissue. Parasitic microbes, for instanse, cause cholera, leishmaniasis, and giardia. Any relationship between two or more biological species is referred to as symbiosis. Such relationships are typically long-term and have a significant impact on one or both organisms' fitness. Benefits and physical characteristics distinguish symbiotic relationships. Mutualism, defined as a relationship in which both species benefit, is very common in nature. There are numerous examples of mutualistic bacteria in the abdomen that aid digestion in both humans and animals in microbiology. A commensal relationship is one in which one species benefits while the other is unaffected. Humans have a variety of commensal bacteria in their bodies that do not harm them but are necessary for survival, like when dead skin is consumed by bacteria.
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Compare a water molecule, H2O, to a hydrogen peroxide molecule, H2O2- Which statement is true?
OA. Water and hydrogen peroxide are made from different types of atoms, combined in the same way.
OB. Water and hydrogen peroxide are made from the same types of atoms combined in the same way.
OC. Water and hydrogen peroxide are made from the same types of atoms, but combine in different ways.
OD. Water and hydrogen peroxide are made from different types of atoms, combined in different ways.
Answer:
C, Water and hydrogen peroxide are made from the same types of atoms, but combine in different ways.
Explanation:
Water is H2O, also known as 2 hydrogen atoms and 1 oxygen atom. In Hydrogen peroxide, its 2 hydrogen atoms and 2 oxygen atoms. They both include the same atoms but in different formations.
Compare a water molecule, [tex]H2O[/tex], to a hydrogen peroxide molecule, [tex]H2O2-[/tex].The statement that is true is water and hydrogen peroxide are made from the same types of atoms, but combine in different ways. Thus, option C is correct.
What is water?Water is a compound made up of nitrogen and oxygen. It is an inorganic substance which is odorless as well as tasteless, and it is a trasnparent chemical substance and it is the main constituent of hydrosphere of earth.
The chemical formula of water is [tex]H2O[/tex] and its molar mass is 18.01528 g/mol with density 997 kg/m3. The boiling point of water is 100 degree celsius and melting point of water is 0 degree celsius.
The elements is defined as a substance which cannot be splitted into simpler form or components by any chemical reaction. An element is also known as atom's species that has a particular number of proton.
All the elements such as carbon, oxygen, and hydrogen found in ethanol but when they are seperated from ethanol they have totally different compound. They are pure element and [tex]ethanol[/tex] is a mixture.[tex]ethanol[/tex]
Therefore, Compare a water molecule, [tex]H2O[/tex], to a hydrogen peroxide molecule, [tex]H2O2-[/tex].The statement that is true is water and [tex]hydrogen[/tex][tex]peroxide[/tex] are made from the same types of atoms, but combine in different ways. Thus, option C is correct.
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Chromosome ____________ refers to the two chromosomes separating and moving to opposite ends of the cell.
How many fish are in this pond?
Answer: One
Explanation: The only fish that I see is in the question that you just asked.
How many fish are in this pond?
Well, 1.. There's no attached image.. So I'm not sure.
But 2, It's probably 69 fish in there. ;)