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4 years ago

Alyssa investigates properties of matter. The answer to which question would best

Biology

1 answer:

timofeeve [1]4 years ago

6 0

Answer:

This question is incomplete as it lacks options, the options are:

A) What is the radius of each particle of the substance?

B) Does the substance contain more than one type of atom?

C) Was a chemical reaction necessary to create the substance?

D) What is the electrical charge of the particles of the substance?

The answer is B

Explanation:

In chemistry, an element is a substance made up of a single type of atom i.e. only one atom of the same type constitutes an element while a compound is a substance that contains two or more different elements. If a compound contains different elements, it means that a compound will certainly contain more than one type of atom.

According to this question, the best question to ask when Alyssa wants to differentiate between an element and a compound is: DOES THE SUBSTANCE CONTAIN MORE THAN ONE TYPE OF ATOM?

- If the answer is yes, the substance is a COMPOUND

- If the answer is no, the substance is an ELEMENT.

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4. An organism is exposed to a mutagen, such as X-rays or UV light, what could be the resulting

Musya8 [376]

Answer:

Mutations in that organism, which can possibly lead to cancer (via mutations in the proto-oncogenes or tumor-suppressor genes)

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3 years ago

Chemical energy in the form of food is changed into what?

RSB [31]

Food is the most important source of chemical energy for living things. The chemical energy in food is converted, or changed, by the body into moving mechanical energy and heat energy. People have invented ways to use the chemical energy of substances to power machines.

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3 years ago

Humans are diploid organisms, and their gametes contain 23 chromosomes. Fill in the blank in each sentence using the terms. Each

USPshnik [31]

Answer:

2n, n, diploid

Explanation:

When the somatic cells of human are in interphase, the ploidy level is denoted as 2n (diploid). The ploidy level of the human's gametes is denoted as n (haploid). The 2n number of a human is diploid.

Somatic cells are also known as vegetative cells and all somatic cells of humans have diploid number of chromosomes. At interphase, the number of chromosome remains diploid (2n) but the amount to DNA is doubled at the synthesis phase of the interphase.

Human gametes are formed through meiosis - the division of sex cells in the human body. Meiosis results in the halving of number of chromosomes of cells. Hence, all human gametes contain half the number (n = 23) of chromosome of vegetative cells.

Humans are diploid organisms with diploid (2n = 46) number of chromosomes in their vegetative cells.

5 0

3 years ago

A reproductive barrier that prevents individuals from closely related species from interbreeding is an example of

Slav-nsk [51]

Behavioral isolation

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3 years ago

A portion of a field has drained more rapidly than the rest, leading to drought conditions in that area several days before the

Andrew [12]

Answer:

Due to sloppy nature of the field.

Explanation:

This problem of rapidly drainage can be solved if the field should leveled because the portion is rapidly drained due to sloppy nature of the field. Sloppy nature of land moves water at the faster rate from higher elevation to lower elevation. We can see in tillage practices, the farmers used levelers in order to level the field in order to provide even resources such as fertilizers and water. So we can say that this problem can be solved if the field will be leveled.

3 0

3 years ago