Messenger RNA carries a(n) _ of the DNA’s instructions out of the nucleus to the _.a. exact copy; ribosome
b. transcript; ribosome
c. exact copy; mitochondria
d. transcript; mitochondria

Answers

Answer 1

Answer: b. transcript; ribosome

Ribosomes are one of the most important organelles in the cell, mostly part of the rough endoplasmic reticulum. It manufactures enzymes such as proteins which will be utilized by many organelles in the cell. Microtubules are one, responsible for the framework and acts as a skeleton of the cell –cytoskeleton needs proteins, also cytoplasm and other organelles of the cell. For a prokaryote or a eukaryote cell to survive, they need protein.

Answer 2

Answer:

Answer:

The answer is B

Explanation:

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Salmonberry leaf cells contain 14 chromosomes. How many chromosomes will a new leaf cell contain after mitosis ?

Answers

The new leaf will contain 14 chromosomes, because during mitosis, a cell makes an exact copy of itself. Therefore, the number of the chromosomes in that cell stay the same.

the new leaf will contain 14 chromosomes as that of the parent cell

Under certain circumstances, glycolysis takes place anaerobically, in the absence of oxygen. When this happens, which of the following products may be produced? lactate ethanol carbon dioxide acetyl CoA

Answers

Answer:

Lactate, ethanol and carbon dioxide can be produced.

Explanation:

Glycolysis can takes place anaerobically in case of limited supply of oxygen and in absence of oxygen. Special enzymes are required for the anaerobically glycolysis to occur under the special circumstances.

The limited supply of oxygen, the glycolysis produce lactate as the major product. The absence of oxygen condition is responsible fior the production of ethanol by the glycolysis. Carbon dioxide is produced as the by product during both the cases.

Thus, the correct answer is ethanol, carbon dioxide and lactate.

Which of the following is a method of maintaining homeostasis in the human body?

Answers

By shivering to warm up.

so homeostasis in layman's term means that the body is trying to keep it's system balanced or functioning normally. It's a survival mechanism.

An example would be as mentioned is when a person begins to shiver in order to try to maintain their body temperature. If someone's body temperature gets too low death usually occurs unless they are given medical assistance if it's not too late.

Hopefully this helped and good luck.

What question did hardy and weinberg want to answer

Answers

the question that hardy and weinberg want to answer is : how does allele frequency and genotype frequencies changes between generations
in the end, they found out that the allele frequency and the genotype frequency will remain constant from generations if evolution is absent.

hope this helps

Currently, what is a major source of ocean pollution? How much more pollution is occurring compared to 1960?
plz help. need this answered 4 science.

Answers

Answer:

Most ocean pollution begins on land.

Much of this runoff flows to the sea, carrying with it agricultural fertilizers and pesticides. Eighty percent of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source pollution, which occurs as a result of runoff.

Answer:

Plastic pollution: The ocean is estimated to contain millions of tons of plastic debris, much of which comes from land-based sources.Chemical pollution: The ocean is also contaminated with a wide range of chemicals, including pesticides, herbicides, and industrial and household chemicals.Nutrient pollution: Excess nutrients, such as nitrogen and phosphorus, can enter the ocean from agricultural and urban runoff and contribute to the growth of harmful algal blooms.Oil pollution: Oil spills and other oil discharges into the water can have a negative effect on the animals and marine ecosystems there.

Explanation:

https://www.quora.com/What-percent-of-the-ocean-is-polluted

How has technology benefited energy production brainlya.
It has provided for the use of alternate energy sources that have reduced impact on the environment.
b.
It has allowed for the use of energy sources that are renewable.
c.
It has allowed for the improvement of existing methods of producing energy.
d.
All of the above

Answers

d.
All of the above

One of the best example of environmental technology that we are currently using is the solar light energy. IT took its electricity in a sun and accumulate those energies into a solar technology. Then after that it can already light the whole house or makes your appliances working without using the current electricity provided by the electric Companies. Second is the water filter technology. IT collects water from the rain then filter it and can be use in doing the household chores like laundry, washing plates, etc.

Answer:

the answer is d

Explanation:

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