Help pls'll give brainlest

Biology

1 answer:

Harman [31]3 years ago

6 0

Here’s a jumping off point: atoms are the building blocks of molecules, molecules are the building blocks of cells. cells create tissues which create organs which create organ systems. organ systems of varying complexities are necessary for the function of organisms.

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How do bacterial use restriction enzymes to protect themselves against viral infections?

Montano1993 [528]

Bacteria defend themselves against viral infections by modification of the receptor sites as well as involvement of restriction endonuclease enzymes which acts onviral DNA and not acting on self as the bacterial DNA is methylated.

6 0

3 years ago

1. How do disturbances (or catastrophes) affect ecological succession? Be as specific as possible. Plz help ASAP

marysya [2.9K]

Answer:

In ecology, catastrophes permanently alter the physical structure of the existing environment.

Explanation:

The ecological disturbances include flood, strom, plague, fires, earthquakes, tsunami, volcanic eruptions, climatic change and impact of humans on the environment like deforestation ,nuclear testing etc.

These factors can have a visible impact on the structure of the earth and permanently alter the environment.

The visible effects of these disturbances are global warming, extinction of selective species, change in the course of rivers, submergence of coastal areas, sudden movement of the tectonic plates and formation of sudden cracks on the earth's crust.

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3 years ago

A botanist studying the inheritance of flower color found that when she crossed the offspring of two pure-breeding flower lines,

Gemiola [76]

Answer:

This is known as incomplete dominance

Explanation:

The phenotype of a heterozygous organism can actually be a combination between the phenotypes of its homozygous parents.The heterozygous offspring and the incomplete dominance of the purple trait are a phenotypic intermediate between the parents

6 0

4 years ago

What structural level of proteins is most often associated with their biological function?

dem82 [27]

Answer:

I think primary function

6 0

3 years ago

Help with 3 science questions ^^

kvv77 [185]

Answer:

He/She can have brainliest!

Explanation:

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3 years ago