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dybincka [34]
3 years ago
5

In what kind of star system does one star sometimes block the light from another?

Biology
1 answer:
Romashka [77]3 years ago
5 0
I think the answer is 3 or 2 i
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The shape of the beaks of Darwin's finches and industrial melanism are often cited as examples of the process of ________ leadin
SSSSS [86.1K]

Answer: The answer is natural selection

Explanation:

Natural selection explains how certain desirable traits like;

- shape of the beaks of Darwin's finches: to help them feed more easily

- industrial melanism to raise a population of dark-coloured organisms to evolve from pre-existing light coloured ones in industrial areas where the surrondings are blackened with soot;

are favored over LESS DESIRABLE TRAITS, resulting in organisms that are most suited/adapted to thrive in an environment, which is evolutionary change

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3 years ago
What is an enzyme? Explain some characteristics of enzymes.
alexandr402 [8]

Answer: Enzymes are macro molecular biological catalysts that accelerate chemical reactions.

(a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.)

Explanation:

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3 years ago
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Specialized cells are found only in
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Answer: O many celled organisms

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3 years ago
Can you determine which instances reflect a valid experiment or conclusion? Check only those that are valid.
vagabundo [1.1K]

Answer:

Only options a reflects the instances with valid experiment or conclusion.

Quality of any experiment depends upon two things reliability and validity. Reliability is measure of regeneration of results every time an experiment is performed under specific conditions.

Validity is measure of accuracy of results of an experiment. It can be check by two ways: internal validity (checks the design of the experiment) and external validity (checks if the conclusion is the real explanation of the phenomenon).

Now, in marine biologist experiment, he concluded the results only after one breeding season. This makes his results unreliable as it might have happened by chance.

Similarly, in cola experiment the taste was only checked by one candidate i.e. Karl. He might have problem in his taste buds. In addition, the temperature of cola can also affects its taste which is not taken care of in the experiment. Hence, it is not the valid experiment.

Similarly. Jeanette could use more plants for her experiment and Robert just followed only one instruction. He didn't perform any experiment.

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3 years ago
Why does type 2 diabetes result in high blood pressure? HELP PLS!!
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Over time, diabetes damages the small blood vessels in your body, causing the walls of the blood vessels to stiffen. This increases pressure, which leads to high blood pressure.
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