Describe the path of nitrogen from the atmosphere to plant protein nitrogen fixing bacteria

Jobisdone [24]

Answer: A

Explanation: It makes the most sense because it isn't directly speaking about something, it is mainly summarizing the main idea. I'm not 100%, but that's the one I would choose if it were me. Hope I helped out a little!

6 0

3 years ago

Organisms that comprise the greatest mass of living substance (biomass) in a terrestrial food chain

TEA [102]

Decomposers Producers Primary consumers Secondary consumers Tertiary consumers

6 0

3 years ago

A cell is

denpristay [2]

Answer:

A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles.

8 0

3 years ago

Insect wings may have begun to evolve as lateral extensions of the body that were used as heat dissipaters for thermoregulation.

Mariulka [41]

Exaptation

Explanation:

In this example, the lateral extensions that developed were meant for thermoregulation.

But these became sufficiently large to support gliding through the air and later on were used for flight.

Thus the structure assumed a function for which it was not meant and its original function shifted to a completely different dimension giving rise to modern insect wings. So we can say that this is an example of Exaptation.

8 0

3 years ago

Within an infected wound bed, many cell types are involved in protecting the host and eliminating the "foreign invaders" to prom

Oxana [17]

Explanation:

All vital organs begin to lose some functionality as one ages during adulthood. Aging changes occur in all cells, tissues and organs of the body and affect the functioning of all body systems.

The living tissue is made up of cells. There are many different types of cells, but they all have the same basic structure. Tissues are layers of similar cells that fulfill a specific function. Different types of tissues group together to form organs.

There are four basic types of tissue:

The connective tissue supports the other tissues and joins them. This includes bone, blood and lymphatic tissue, in addition to the tissues that provide support and structure to the skin and internal organs.

The epithelial tissue provides coverage for the superficial and deeper layers of the body. The skin and lining of the ducts inside the body, such as the gastrointestinal system, are made of epithelial tissue.

Muscle tissue includes three types of tissue:

Striated muscles, such as those that move the skeleton (also called voluntary muscles)

Smooth muscles (also called involuntary muscles), such as the contents in the stomach and other internal organs

Myocardium, which makes up most of the wall of the heart (also an involuntary muscle)

Nervous tissue is composed of nerve cells (neurons) and is used to carry messages to and from different parts of the body. The brain, spinal cord and peripheral nerves are composed of nerve tissue.

7 0

3 years ago