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3 years ago

Which of the following is one of the chemical building blocks of cells? a. water c. air b. food d. carbohydrates

Biology

1 answer:

ikadub [295]3 years ago

3 0

Answer:

d. carbohydrates.

Explanation:

Sugar-consisting molecules. As a source of energy and energy storage cells employ carbs. The carbohydrates in the cells of an organism are broken down to release the stored energy.

Simple carbohydrates

Composed of one or a few molecules of sugar. Examples of simple carbs are table sugar and fruit sugar.

Complex Carbohydrates

Extra sugar from an organism may be preserved as complex hydrates of carbon. They consist of hundreds of molecules of sugar.

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A metal in group 16 of the periodic table can become a chemically stable ion by

vova2212 [387]

Answer : A metal in group 16 of the periodic table can become a chemically stable ion by gaining 2 electrons.

Explanation :

The group 16 element are oxygen, sulfur, selenium, tellurium and polonium.

The general electronic configuration of group 16 elements is, $ns^2np^4$

As we now that there are total 6 electrons in p sub-shell. So, a metal in group 16 can become a chemically stable ion by gaining 2 electrons.

$M+2e^-\rightarrow M^{-2}$

Hence, a metal in group 16 of the periodic table can become a chemically stable ion by gaining 2 electrons.

6 0

3 years ago

Oxygen is taken inside the body of living things by exahalation. true false

Readme [11.4K]

False

<h3>Explanation - </h3>

The process through which living organisms take oxygen inside the body is know as Inhalation 

Exhalation refers to the release of carbon dioxide from the body.

8 0

3 years ago

The slow gradual change in a species is called

alina1380 [7]

The slow gradual change is called proposed.
it process organisms w/ favoable traits to survive hope this help meh friend :)

4 0

3 years ago

In humans, dimples (D) are dominant over no dimples (d). Curly hair (A) is dominant over

jeyben [28]

Answer:

1. ddaa

2. DdAa

3. One from each parent

4. False

5. 0.25

6. 0.25

7. 0.25

8. 0.5

Explanation:

The remaining part of the question is

1. What is Jane's genotype?

2. What is Paul’s genotype?

3. Where did Jane get her gene for curly hair? From her mother or father?

4. True or False: Jane's mother was heterozygous for curly hair?

5. What fraction of Paul and Jane's children should have curly hair and dimples?

6. What fraction of their children would have straight hair and no dimples?

7. What fraction should have dimples but not curly hair?

8. What is the probability of getting any offspring with dimples

Solution

1. Genotype of Jane's mother -ddaa

2. Genotype of Paul (heterozygous for dimples and curly hair) – DdAa

3. One “a” gene from mother (whose genotype for hair was aa) and second “a”gene from father (whose genotype was Aa)

4. False. She was having straight hair

5. Offspring of Paul and Jane

DdAa (4), Ddaa (4), ddAa(4) and ddaa (4)

4 out of 16 offspring will have curly hair and dimples = 0.25

6. ddaa, 4/16 = 0.25

7. Ddaa , 4/16 = 0.25

8. Ddaa, DdAa, 8/16 = 0.5

6 0

3 years ago

PLEASE HELP WILL GIVE BRAINLIEST

alexgriva [62]

The answer is B:12 grams

8 0

3 years ago