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BIOLOGY!!

Answer:

In negative control, a regulatory protein shuts down transcription, and in positive control, an activator switches on transcription.

Explanation:

.

Answer:

The ribosomes on rough ER specialize in the synthesis of proteins that possess a signal sequence that directs them specifically to the ER for processing.

Answer:

BOTH ARE USED IN THE SYNTHESIS AND TRANSPORTATION OF PROTEIN.

Answer:

B.

Explanation:

wont let me say the word but it means to be the same as something according to gogle. SO it would make sense that if something was the same as another for them to be in harmony.

An engine cut-off lanyard helps to reduce the risk of striking a person in the water with a propeller. The correct answer is option 2.

A propeller is a device with rotating blades that is used to propel a vehicle through a fluid, such as air or water. In the context of boating, a propeller is a rotating device that is attached to an engine and used to propel a boat through the water.

An engine cut-off lanyard is a safety device that is attached to the operator of a boat and to the engine's kill switch. If the operator is thrown from the boat, the lanyard will pull the kill switch, stopping the engine and preventing the propeller from causing injury to the operator or others in the water.

Therefore, an engine cut-off lanyard is an important safety feature that can help prevent accidents and injuries on the water. Option 2 is the correct answer.

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The given question is incomplete. The complete question is:

An engine cut-off lanyard helps to reduce the risk of what?

1. Stopping the engine if the oil level gets low·

2. Striking a person in the water with a propeller·

3. Starting the engine without proper choke applied·

4. Over-revving an outboard engine at idle

Answer/Explanation:

1. Both because RNA and DNA consist of Adenine, Uracil, Guanine, Cytosine, and Thymine which are all nucleic acids

2. R. RNA is usually single stranded while DNA is double stranded getting the name the "double helix"

3. D. DNA can usually be found in the nucleus of a cell but can sometimes be found in the mitochondrion of that cell which is outside of the nucleus

4. D. DNA got the name double helix because of its ladder like shape. The shape of DNA looks like ladders curling around a pole

5. Both. This is because both RNA and DNA consists of these nucleic acids but the acids that make then unique are the uracil in RNA and the thymine in DNA

6. Both. This is because all nucleotides consist of a phosphate, sugar, and a base. Thats what makes up a nucleotide

7. R. As it was said earlier, RNA has the same nucleic acids as DNA except uracil. DNA has thymine instead of uracil

8. D. DNA has thymine instead of uracil

9. Both. Both DNA and RNA are usually in the nucleus doing their jobs to help us function

10.D. DNA has sugar deoxyribose while RNA has sugar ribose.

11. Both. Both DNA and RNA are made up with nucleotides like thymine, uracil, adenine, and more

12. R. Only RNA has sugar ribose since DNA has sugar deoxyribose

During photosynthesis, light excites electrons in the photosystems and it is used to generate ATP and NADPH.

Photosynthesis is a series of chemical reactions used by plants to generate carbohydrates by means of light energy (solar radiation).

During this process, light excites electrons in the photocenters and this energy can be converted to chemical energy via ATP and NADPH production.

In conclusion, during photosynthesis, light excites electrons in the photosystems and it is used to generate ATP and NADPH.

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Answer:

The development of generations of antibiotic-resistant microbes and their distribution in microbial populations throughout the biosphere are the results of many years of unremitting selection pressure from human applications of antibiotics, via under-use, overuse, and misuse.

Explanation:

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Answer:

Nuclear reactions involve a change in an atom's nucleus, usually producing a different element

Explanation:

Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. Different isotopes of an element normally behave similarly in chemical reactions.

Answer:

helps us understand the living world and the ways its many species (including humans) function, evolve, and interact.

Explanation:

Answer:

Selective Breeding

Explanation:

Selective breeding is the result of choosing two parents with certain characteristics in order to produce an offspring that is more likely to possess these traits. Over generations, these traits can accumulate to the point of creating a new breed. To put it simply, all dog species share a common ancestor-the wolf.

Cortisol (hydrocortisone) is a steroid that affects glucose, protein, and fat metabolism and is produced in the middle zone of the adrenal cortex.

Cortisol or hydrocortisone is a steroid hormone, produced by the adrenal cortex, that regulates the metabolism of carbohydrates and maintains blood pressure.

The adrenal gland is responsible for the secretion of the hydrocortisone hormone; specifically the middle part of the adrenal gland also called the zona fasciculata.

Therefore, cortisol (hydrocortisone) is a steroid that affects glucose, protein, and fat metabolism and is produced in the middle zone of the adrenal cortex.

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Answer:

3

Explanation:

because we release carbon dioxide after cellular respiration.

Answer:

Point B

Explanation:

Point B is getting the most light and is closet to the surface

Point B is getting the most light and is closet to the surface.

The daily cycle of light and dark in the photic zone of the world's oceans is maybe the most potent environmental signal accessible. Russell's suggestion that zooplankton resided in depths with the best light intensity was one of the early reports to propose that light had a major role in vertical migration.

He went on to say that as animals strayed from this zone of ideal light intensity, physiological responses governed by photochemical systems prompted them to come back.

Subsequent reviewers came to the conclusion that there was a lot of (although speculative) evidence that light had a substantial role in controlling fish's vertical migration.

Therefore, Point B is getting the most light and is closet to the surface.

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Explanation:

Blood is pumped from the left ventricle of the heart through the aorta and arterial branches to the arterioles and through capillaries, where it reaches an equilibrium with the tissue fluid, and then drains through the venules into the veins and returns, via the venae cavae, to the right atrium of the heart

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Answer:

It is also important to remember that the seasons in South America are the reverse of that in the Northern Hemisphere, meaning that summer falls between December and February and winter between June and August.

The further north you are on the continent, the closer you are to the Equator (the country, of course, but also the Equator line). The temperature variations between the different months of the year are therefore smaller and smaller as you go up. In other words, each seasons of South America depends on its country.

The reason they do is because the linear nature of saturated fatty acids allows for tightly packed formations

Answer: b. fossil fuels are nonrenewable, so humans will run out of them eventually. burning fossil fuels also contributes to global climate change by releasing carbon dioxide into the atmosphere.

Explanation:

Fossil fuels are limited and we will run out of them eventually. They cannot be replenished in a single human's lifespan. Fossil fuels contribute to the destruction of ecosystems, but not only that. They release carbon dioxide into the atmosphere that warms the Earth. Therefore, anything other than B. would be incorrect.

Answer:

A.) In multicellular organisms, cells differentiate.

Explanation:

A.) is correct because eukaryotes are multicellular organisms. Not all of these cells are located in the same place or serve the same function. Because of this, many cells need to differentiate. When organisms have more specialized cells, they need to have more complex gene regulation processes in order to create these cells and control their behavior.

B.) is incorrect because eukaryotes have more chromosomes than prokaryotes. While prokaryotes only have one circular chromosome, eukaryotes can have many more depending on the species.

C.) is incorrect eukaryotes are not single-celled organisms. Eukaryotes are multicellular organisms and prokaryotes are single-celled organisms.

D.) is incorrect because eukaryotes have a lot more DNA than prokaryotes. This makes sense because eukaryotes are more complex than prokaryotes.

Answer: A. in multicellular organisms cells

Explanation:

The type of DNA sample that would MOST likely be successful using RFLP is a sock soaked in human sweat.

Restriction Fragment Length Polymorphism (RFLP) is a type of molecular marker used to identify samples of DNA.

RFLPs are fragments of different lengths that can be separated by electrophoresis and then identified.

In conclusion, the type of DNA sample that would MOST likely be successful using RFLP is a sock soaked in human sweat.

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Answer:

a sock soaked in human sweat

Explanation:

a variation in the length of restriction fragments produced by a given restriction enzyme in a sample of DNA. Such variation is used in forensic investigations and to map hereditary disease.

Answer:

Well, an extinct species refers to a single species completely dying off whereas a mass extinction happens when a massive number of species all dye off at the same time.

Explanation:

For example, when the asteroid wiped out all the dinosaurs that was a mass extinction, but the gradual disappearance of the African Black Rhino would simply be considered as an extinct species because of the fact that not every kind of Rhino to ever exist was wiped out.

The U.S. is a leader in agriculture and food globally. In the last 150 years, technologies and innovations in the production, transportation, and retailing of food have developed economic growth at home and provided affordable food to the of people of the world.

Globalization has developed agricultural production and resulted it in growing much faster compared to the ones in the past.

Before the fast growth was around over 3 percent per year. Now at this time, it is 4 to 6 percent.

However, these increased rates of growth involve a particular change in its composition.

Thus, it can be concluded that globalization helped billions of people to overcome extreme poverty and improved their lives.

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Answer: 5,280 Feet

Explanation:

1 Mile = 5,280 Feet

Answer:

The traits that are transferred from the parents to the offspring during reproduction are determined by genes, located on chromosomes, found in the nucleus.

Explanation:

During reproduction, there is a fusion of;

male gamete

female gamete

This leads to the formation of offspring. There is a transfer of traits from the parents to the offspring.

Hence, the traits that are transferred from the parents to the offspring during reproduction are determined by genes, located on chromosomes, found in the nucleus.

Answer:

(2) genes, located on chromosomes, found in the nucleus

Explanation:

Traits are determined by genes which are located on chromosomes. Chromosomes, on the other hand, are located in the nucleus.

Answer:

First, you breathe in oxygen through your trachea. The air travels down through the trachea to your lungs. Then your lungs transport the oxygen through your pulmonary artery to your heart. Then the heart transports the oxidized blood throughout your body. Then once the blood gives away all the oxygen your veins take the filtered blood through your pulmonary vein and back to your lungs to get oxidized again. I hope this helps

Explanation:

Answer:

Antibiotics is no a pathogen

Answer:

Charles Babbage

Explanation:

English mathematician and inventor Charles Babbage is credited with having conceived the first automatic digital computer. During the mid-1830s Babbage developed plans for the Analytical Engine.

Answer:

English mathematician and inventor Charles Babbage is credited with having conceived the first automatic digital computer. During the mid-1830s Babbage developed plans for the Analytical Engine.

Answer:

yes it is. That is because DNA has a definite purpose. and is most active during when it is in the important phase.....

the cell cycle