BIOLOGY HIGH SCHOOL

What is the main job of DNA ?

Answers

Answer 1
Answer: DNA is a nucleic acid that contains the genetic instructions for the development and function of living things.
Answer 2
Answer:

Final answer:

The main job of DNA is to store and transmit genetic information and direct protein production.

Explanation:

The main job of DNA is to store and transmit genetic information. It contains the instructions for building and maintaining an organism. DNA directs the production of proteins, which carry out many functions in the body, such as regulating cell processes, transporting molecules, and providing structure to cells and tissues.

Learn more about DNA's main job here:

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Living cells cannot use heat to provide the activation energy for biochemical reactions because ________. Which choice(s) complete the sentence correctly?

Answers

Since you did not give a list of choices,here are some reasons why living cells cannot use heat to provide the activation energy for biochemical reactions:

>Heat can never be used to do work. 
>Heat is not readily available to all living cells. 
>Heat doesn't provide the activation energy for their reactions.

Answer: B) answer choices II and IV

Explanation:

heat at excessive amounts denatures proteins

When a critical temperature is reached proteins no longer function

Which of these sentences is true about the virus?a. It is unicellular in nature and it reproduces asexually.
b. It can reproduce only within other cells.
c. Its hereditary material is in the form of a capsid.

Answers

The sentence which is true or a fact about the virus is the sentence in letter B. Viruses can reproduce only within other cells. Viruses are intracellular obligate parasites they can not replicate or express the genes with out living host. 
viruses are acellular so they have to rely on host cellular machinery for reproduction. 
viruses doesnot contain any enzymes for reproduction

Answer:

B. It can reproduce only within other cells.

Explanation:

I got it right on Plato :)

Which suture is found between the parietal bones? A. Lambdoidal. B. Parietal. C. Sagittal. D. Squamous. E. None.

Answers

Answer:

Sagittal suture.

Explanation:

The sagittal suture is a dense, immovable joint that runs along the midline of the skull, separating the two parietal bones. It connects the frontal bone at the top of the skull to the occipital bone at the back.

Mammals are adapted to live in the following environments:a. land
b. air
c. water
d. all of the above

Answers

Mammals are adapted to live in D - all of the above. Mammals are, infact, very versatile groups of species which have evolved in a way that also itself enables their versatility. For this reason, mammals have been able to roam the different parts of Earth and thrive in that environment. 

d. all of the above

n a(n) _________ procedure, the compound stimulus consists of a neutral stimulus and a CS, whereas in a(n) _________ procedure, the compound stimulus consists of two neutral stimuli that differ in salience or intensity.

Answers

Answer is "Blocking & Overshading"

Explanation:

  • Blocking could be a dependable cross-species learning impact. It has been examined essentially utilizing Classical (Pavlovian) Conditioning in which creatures come to appear their learned expectation of a naturally noteworthy result, regularly nourishment or foot stun, through a behavioral conditioned reaction. This conditioned reaction regularly takes after the unconditioned reaction for the result ( unconditioned boost, UCS) – for case, in Pavlov’s unique thinks about, the salivation reaction to nourishment came to be evoked by a chime, named the conditioned boost (CS), that gone before nourishment conveyance. This expectant reacting permits us to measure the quality of the conditioned affiliation.
  • Overshading is when two or more more boosts are show, and one boost produces a more grounded reaction than the other since it is more significant or notable. Let's see at an example... Let's say you need to educate your pooch to sit. On the off chance that you draw your puppy to a sitting position by dangling a treat over her, whereas at the same time saying "sit," figure which jolt is causing your canine to sit? In this case, noticing the treat dominates hearing the word "sit" since the treat is more pertinent than your voice.

How is a scientific theory developed ?

Answers

A scientific theory is an explanation of why things happen that has been through rigorous testing until it's accepted as true.  Scientific theories are created through the process of the scientific method. Observation and research lead to a hypothesis, which is then tested.

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