Which mutation would be most beneficial to an elephant and its descendents?A.a mutation of the hemoglobin allowing better oxygen-carrying capacity

B.a mutation of the tail fur so it becomes course and thick

C.a mutation of the skin color resulting in an albino (white) elephant

D.a mutation of the tusk size and length resulting in smaller and shorter tusks

Answers

Answer 1

Answer: I mean I would personally say A,

If you can increase the oxygen carrying capacity of your red blood cells, it means you would have to circulate less of them to keep cells alive, respectively this would require less energy and thus, less food to consume. That would be a competitive advantage. All the rest would't be as beneficial as that

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Topograhic maps differ from geologic maps because they shows ______ A. Physical composition and features. B. Shape,steepness,and height. C. Precipitation amounts

Answers

Answer:

B. Shape,steepness,and height

Explanation:

The maing differences between topographic maps and geologic maps is that the topographic maps show shapes, steepness and height, and the geologic maps usually just show types of rocks, geologic features like faults of folds in the region that the map is showing. Topographical maps show points in places that have similar altitude above the sea so you can have an idea of height.

Topographic maps shows physical composition and features.

Explain why DNA has an overall negative charge.

Answers

DNA has an overall negative charge because DNA backbones are made of deoxyribose and pentose sugar which are connected in phosphodiester bond. The groups of phosphate usually have a negative charge that makes positively charged particles (histone proteins) to interact and form chromatin.

What part of a wind turbine provides motion to convert into electricity? A.
generator

B.
blades

C.
tower

D.
rotor

Answers

The part of the wind turbine that converts motion or mechanical energy into electricity is the generator. The reverse action of converting electricity to mechanical energy is called the motor. The blades provide the mechanical energy, on the other hand.

The answer is the blades.

11. Jamal ate a meal of rice before seeing his doctor. Rice is made of mostly starch molecules. Jamal has been feeling tired a lot, so his doctor gave him a test that found that Jamal's cells contained normal levels of oxygen and low levels of glucose. Does this explain why Jamal has been feeling tired.

Answers

You need glucose with out it you’ll be ..

The excretory system is responsible for removing all of the following from the body except

Answers

The excretory system is responsible for removing all of the following from the body excep t

A. Toxic Waste B. Gaseous Waste C. Dissolved molecules D. Cells

Answer:

D. Cells

Explanation:

The excretory system consists of organs that help the body to get rid of excess and waste materials from the body, and also helps in maintaining internal homeostasis in the body. These organs include the large intestine, skin, lungs, kidneys. Most of the wastes are products of metabolism. These waste materials that are no longer useful to the body could be in liquid or gaseous form. Examples of substances removed from the body by the excretory system are urine, feces, sweat etc.

Cells are not part of the substances removed by the excretory system.

Factors that affect the supply of water in agriculture

Answers

one of the factors that affect the supply of water in agriculture is if the water is event he slightest poisoned or a affected by something that cannot be consumed by plants, or animals. Meaning if we consume the poisoned water we could be seriously harmed or even die.

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You have examined several body systems that rely and work with each other in order function properly. One very important task that amphibians and all living things need is to efficiently exchange gases in order to survive. Explain in a brief essay how the cardiovascular system and respiratory system work with each other based on your experience and observations from this virtual lab.

Choose the statement that best describes the Americans who served in Vietnam.A. Most Americans who served in Vietnam had been drafted. B. Most US soldiers in Vietnam were in the infantry. C. Most US soldiers had attended a college or university. D. Most US soldiers were young, working class volunteers.

So i'm doing some test stuff and im kind of sucky at science sooocan someone help me? Question 1 The excretory system lets go of wastes in the body. A. True B. False Question 2 The endocrine system includes organs such as the: A. Stomach and intestines. B. Arms and legs. C. Spinal cord D. Bones and muscle Question 3 The digestive system usually involves breaking down food in order for a body to use it as an energy source. (im pretty sure i know this one...) A. True B. False Question 4 Which body system has a main focus on the heart, blood and veins? A. Skeletal B. Urinary C. Circulatory D. Nervous Question 5 Which body system deals mainly with the lungs? A. Respiratory B. Circulatory C. Excretory D. Skeletal thats all