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Paha777 [63]
3 years ago
7

What is the best definition of direct cause of disease?

Biology
1 answer:
vekshin13 years ago
8 0

Answer:

D. a cause that directly leads to a normal condition without interference

Explanation:

Direct contact infections spread when disease-causing microorganisms pass from the infected person to the healthy person via direct physical contact with blood or body fluids.

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5. What are the four bases found in DNA?
enyata [817]

Answer:

Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

Explanation:

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3 years ago
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Water molecules in lakes and the atmosphere and many miles
Rufina [12.5K]

Answer:

Evaporation is the process which allow water molecules to move between lakes and the atmosphere.

Explanation:

Evaporation is a process in which water which is present in liquid form in lakes and ocean evaporated in the form of water vapours. These vapours goes upward and form clouds which moves toward hilly areas with the help of wind. The water present in the clouds come back to the land in the form of rainfall and snowfall. This water flows through the streams and collected in the rivers again and repeat this process.

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3 years ago
How are some fish specially adapted to attract prey or to escape predators?
Mariana [72]

<span>Fish have adaptable behaviors and structures so that they can survive in the wild. These adaptations however differ with regards to context and environment. Some fishes for example are called stonefish because they can camouflage in environments that are composed variedly with pebbles and rocks, and this helps them to avoid predators and thrive. Nevertheless, when these group of organisms are strayed and become exposed to a new environment they can be exposed and be vulnerable to predators. </span>

7 0
3 years ago
How does energy flow through organisms
Natalka [10]

Answer:

Energy "flows" through the ecosystem in the form of carbon-carbon bonds. ... This process releases the energy, which is either used by the organism (to move its muscles, digest food, excrete wastes, think, etc.) or the energy may be lost as heat. The dark arrows represent the movement of this energy

Explanation:

Energy "flows" through the ecosystem in the form of carbon-carbon bonds. ... This process releases the energy, which is either used by the organism (to move its muscles, digest food, excrete wastes, think, etc.) or the energy may be lost as heat. The dark arrows represent the movement of this energy

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3 years ago
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Which carbohydrate is known as blood sugar and is needed by all body cells to produce energy?
Natalija [7]
The answer should be glucose.
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3 years ago
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