Describe the relationship among atoms,molecules, matter

Biology

1 answer:

Vladimir [108]3 years ago

5 0

Answer:

Atoms, molecules and matter are related because matter is made up of atoms. Molecules are atoms of more than two elements that are chemically bonded together. An atom is a certain element that becomes a compound or molecule when bonded with other atoms. So matter is made up of one type of element or combinations of elements.

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Which of the following is the definition for speciation?

Leona [35]

ANSWER:

I think it is the first one

Explanation:

Speciation is the process in which new species are created through evolution. I might be wrong though.

the evolutionary process through which new species emerge

5 0

2 years ago

A phycologist is interested in testing the claim that the proportion of algae from a local rivulet that belonged to the particul

Shkiper50 [21]

Answer:

The test statistic for this hypothesis test is - 3.68.

Explanation:

A test statistic is a random variable that is calculated from sample data and used in a hypothesis test. You can use test statistics to determine whether to reject the null hypothesis. The test statistic compares your data with what is expected under the null hypothesis.

Sample proportion = 38/50

= 0.76

Hence,

Test statistic

$= \frac{0.76-0.50}{\sqrt{0.50*0.50/50}}$