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Alexxandr [17]
3 years ago
10

Which of these organisms does not need a digestive system because it produces its own food? A)cactus B)bee C)tiger D)dinosaur

Biology
2 answers:
umka21 [38]3 years ago
7 0

Answer:

Cactus is the answer

schepotkina [342]3 years ago
4 0

Answer:

Explanation:

                                                                                                                                                       

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A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in the labor
PSYCHO15rus [73]

A mutation is an alteration in the original DNA sequence.  Option 3. The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.

<h3>What is a mutation?</h3>

A mutation is a stable and hereditably change in the genetic material.

Mutations alter DNI sequences and introduce new variants. Many of these variants are eliminated, but some of them might succeed and be incorporated in each individual, affecting the entire species.

They can be damaging or beneficial. These last mutations are the ones that have been selected by natural selection.

Different mutagenic agents cause changes in genetic information, increasing mutations over the normal level. They can change the bases sequences and bases pairing.

Mutations depend on each group's environment and its ecological pressures, and they accumulate in time. They are inherited to the followings generation and get to spread.

According to this framework, the correct option is 3. The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.

If the analyzed chemical is a mutagen, then it will cause an alteration in the DNA sequence and this change -mutation- will pass to the following generations spreading in the population.

You can learn more about mutations at

brainly.com/question/13923224

brainly.com/question/9598940

brainly.com/question/17106056

#SPJ1  

A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in

the laboratory

Which statement best provides evidence that the substance is a mutagen?

  1. The cells die within hours of being exposed to the chemical.
  2. The cells grow more quickly than those that were not exposed to the chemical.
  3. The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.
  4. The cells continue to divide at the same rate as before they were exposed to the chemical.
3 0
2 years ago
Why do new species often form on new islands
Anon25 [30]

Answer:

The answer is B

Explanation:

New species often form on new islands because they evolve to fill new niches

5 0
3 years ago
Which of the following components of blood makes up the smallest percentage by
IgorC [24]
<h2>Answer:</h2><h3>the majority of blood volume consist of PLASMA.</h3>
7 0
2 years ago
The process occurring at the sensory receptors that converts physical energy into coded neural activity that the nervous system
Anika [276]

Answer:

Sensory transduction

Explanation:

The sensory process involves many steps to send the signals from the receptor to the brain.

In this, the step that is involved in the conversion of the physical energy into the electrical signal at the sensory receptor  (in the given case mechanoreceptors) is known as the Sensory transduction.

When the mechanoreceptors get stimulus by the physical force, it opens the mechanical gate of the dendrites which allows the influx of the positive ions. The influx of the positive ions causes depolarization of the membrane which initiates the action potential which is then transmitted to the brain.

Thus,  Sensory transduction is the correct answer.

6 0
3 years ago
Read 2 more answers
Which chemical reaction would result in the greatest release of energy? A)ADP + P --&gt; ATP B)ATP + Oxygen --&gt; ADP + P C)Pyr
julsineya [31]

The answer is B)  ATP + oxygen --> ADP + P

Adenosine triphosphate (ATP) is the energy currency stored in every living cell. ATP is a complex molecule which composed of the nucleoside adenosine and a tail of three phosphates. Normally energy is released from the ATP molecule by a reaction that removes one of the phosphate-oxygen groups and becomes adenosine diphosphate (ADP). Thus, ATP converts to ADP to liberate energy. ADP soon after release, it is recharged in the mitochondria and comes out again as ATP.


7 0
3 years ago
Read 2 more answers
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