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Pepsi [2]
3 years ago
11

What are control variables?

Biology
1 answer:
Tomtit [17]3 years ago
3 0

Answer:

scientific experimentation is an experimental element which is constant and unchanged throughout the course of the investigation

Explanation:

throughout the course of the investigation.

The control variables themselves are not of primary interest to the experimenter.

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Women gives birth to a baby boy. A few years later she gives birth to another baby boy. What is the probability that her third c
elena-14-01-66 [18.8K]

Answer:

50 %

Explanation:

It is given that a woman gives birth to a baby boy. Her second child is also a baby boy. Now she is about to give birth to her third child. We have to determine the probability of the child to be a girl.

Here, the probability of the child to be a girl would be 50 % or 1 out of 2.

There are two possibilities and the possibilities would result a boy child or a girl child. So there are two possible outcomes and is equally likely with each child birth.

Also each child birth is an independent event, so the probability that the one results will occur do not depend on the previous births.

5 0
3 years ago
Determine if this passage is an argument or nonargument: Evolution is central to vertebrate biology because it provides a princi
attashe74 [19]

Answer:

C). Argument; conclusion: Classification,...a method of understanding evolution.

Explanation:

An argument is characterized as 'a series of propositions organized so that the final proposition is a conclusion that is intended to follow logically from the previous propositions.' The given passage exemplifies an argument as it puts forward a claim that can be argued upon if it is true or not and supported through adequate reasoning. <u>The factual evidences are provided to support the validity of the proposition and the conclusion that 'classification initially a process...understanding evolution' is compelled</u>. Thus, <u>option C</u> is the correct answer.

7 0
3 years ago
How does differentiation differ in animal and plant cells
andrew-mc [135]

Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not. ... Plant cells usually have one or more large vacuole(s), while animal cells have smaller vacuoles, if any are present.

6 0
3 years ago
Which of the following is not currently polluting Earth's water?
Alexeev081 [22]

Carbon Monoxide.  Carbon Monoxide is polluting the air not water, everything else on the list is something that can pollute the water.


5 0
3 years ago
Read 2 more answers
1. In the marine food web shown, which of the
Rudiy27

Answer:

C. Ringed seal

Explanation:

A marine food web illustrates how energy is passed from one organism (level) to another in this aquatic rich ecosystem.

In the following food web, the interaction goes like this:

  1. The Arctic cod feeds on plankton and silverslides and it is preyed upon beluga whales and ringed seals.
  2. The sea duck goes to the bottom of the ocean to feed on benthic organisms and also consumes plankton and silverslides. It doesn't really have predators.
  3. The beluga whale doesn't really have predators, but it feeds on fish such as silverslades and Arctic cod.
  4. Ringed seals feed on plankton and Arctic cod and are then consumed by polar bears.

Therefore, according to this information, all organisms except the ringed seal feed directly on silverslides.

7 0
3 years ago
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