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Lina20 [59]
2 years ago
9

Viruses require __________ for growth (to spread).

Biology
1 answer:
elixir [45]2 years ago
5 0

Answer:

Living cells

Explanation:

Viruses require living cells. Viruses aim to replicate themselves, and cells do exactly that. By injecting their DNA into a living cell, the cell will replicate the virus's DNA and infect other cells, spreading it more and more in the organism.

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A box is at rest on the ground. An unbalanced force acts on the box and causes it to start moving. The box moves 10 meters in 2
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The box stopped moving because the force stopped pushing . The average speed of the box would be 5 meters per second
3 0
3 years ago
Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of
larisa86 [58]

Answer:

The correct answer will be option-D

Explanation:

The aerotaxis movement experiment performed by the Theodor W. Engelmann played an important role in understanding the photosynthesis.

The experiment was performed on the <em>Spirogyra </em>filamentous algae which were exposed to a different wavelength of light.

The other aerobic bacteria present in the test tubes started moving and accumulated near the two regions of the <em>Spirogyra</em> where they were exposed to the blue and red light of the VIBGYOR.

The region receiving red and blue light produced more oxygen through photosynthesis which indicated that these two wavelengths of the light are more active for photosynthesis than any other wavelengths.

Thus, option-D is the correct answer.

7 0
3 years ago
Skin cells are able to pass on their characteristics to new skin cells because of which of the following?
NeTakaya

Answer:

Explanation:

Do nguyên phân làm tế bào con giống với tế bào mẹ ban đầu

3 0
3 years ago
What type of molecule speeds up chemical reactions in living things?
iren [92.7K]

The best answer is  B - Proteins.

Proteins make up enzymes, or to put it another way enzymes are made up of protein. It is enzymes that speed up the chemical reactions. Enzymes are organic catalysts, substances that speed up a (biochemical) reaction but do not take part in the reaction and remain unchanged at the end of the reaction.

In man, there are many enzymes. The majority of these are found in the digestive system where they greatly aid the process of food breakdown from complex molecules to simple molecules. Examples include salivary amylase found in saliva,  which begins the gradual breaking down of starch into glucose right from the moment food is placed in the mouth and mixed with saliva. Pepsin in the stomach breaks down protein.

4 0
3 years ago
Is it a or d? <br> B and c don’t make sense to me
Arlecino [84]

Answer:

D. An observation is based on evidence, an inference is not.

Explanation:

When you infer something, you're basically guessing at it, while an observation is something that you can see and prove.

8 0
3 years ago
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