BIOLOGY MIDDLE SCHOOL

What makes up a molecule of water?

Answers

Answer 1

Answer:

Answer:

2 Hyrogens atoms and 1 oxygen

Explanation:

its H2O a molecule is a atom so 2 hydrogen atoms and 1 oxygen atoms make up a water

Answer 2

Answer:

A molecule of water is made up of 3 atoms. 2 Hydrogen atoms and 1 Oxygen atom. H2O.

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How do cells in your body get energy

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the process photosynthesis

The genes that code for two different traits:

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Answer:

Pleiotropic genes?

Describe ways that water pollution occurs.

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Answer:

water pollution is also one the major problem now due to over population n other thing

Explanation:

When some one throw waste in water then there is plastic also and other waste which contain different harmful chemical and directly mixed with water and pollute the water.

What does the surface of a calm lake have in common with a contour line?

Answers

Answer;

-They are all at the same elevation

Explanation;

-Contour line on a topographical map that detail changes in elevation. This line connects points of equal elevation. Contour lines are used in Topography to show the elevation of the land on a map. When looking at a map the contour lines look very similar to how a calm lake would appear.

They are both straight, the calm lake is flat and straight, so is the contour line.

Describe one harmful effect of thlidomide

Answers

Hey :) Hope This Helps A Little!

1.) DEFINITION: (noun) Thalidomide is a medical drug that caused unexpected and serious damage to unborn babies in the 1950s and 1960s.

DESCRIPTION: The drug led to the arms or legs of the babies being very short or incompletely formed.

:) So This would describe one harmful effect of the drug THLIDOMIDE

What type of organic molecule do you think is shown in the diagram above? Explain your answer.