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lukranit [14]
3 years ago
5

Which two habitats lack trees, shrubs, and liquid water?

Biology
2 answers:
NNADVOKAT [17]3 years ago
8 0
The answer is the letter b
Elena L [17]3 years ago
6 0

Answer:

b. desert and tundra

Explanation:

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A rabbit population's birth rate is 200 rabbits born/year. The death rate is 150 rabbits dying/year.
Tpy6a [65]

Answer:

It's growing

Explanation:

The growth rate is 50 rabbits per year

8 0
3 years ago
Antibodies that act against a particular foreign substance are released by ________. antibodies that act against a particular fo
MissTica
The correct answer is "plasma cells". 

Plasma cells are differentiated or mature B cells capable of producing antibodies against a particular foreign substance. B cells are stimulated to differentiate into plasma cells when it binds to two receptors of helper T cell; having the T cells "help" the B cells to differentiate to plasma cells. These T cells have the antigenic information passed to them by antigen presenting cells such as dendritic cells and these will be passed to the B cells and plasma cells will produce antibodies against this specific antigen.
4 0
3 years ago
The primary means for transmitting messages between the brain and the rest of the body is the ______.
Nesterboy [21]

Answer:

The primary means for transmitting messages between the brain and the rest of the body is the <u>spinal cord</u>.

Explanation:

The spinal cord is the main pathway of the nervous system. The impulses are transmitted to the brain through bundles of ascending nerve fibers, while the descending fibers transmit impulses in the opposite direction. Signals are transported to and from different parts of the body along the fibers of the pair of spinal nerves, which form intersections with the spinal cord through their dorsal and ventral roots; the sensory and motor fibers converge in the gray matter of the medulla.

5 0
4 years ago
_____ communicate with the body to ensure homeostasis. Feedback loops Cells Enzymes Plasma membrane
blsea [12.9K]
The feedback loops communicate with the body to ensure homeostasis.

Answer is A. Feedback Loops 

It will help you

Have a great day
8 0
3 years ago
Read 2 more answers
"Dietitians often recommend that we frequently consume foods containing omega-3 fatty acids. An omega-3 fatty acid is one that h
9966 [12]

An omega-3 fatty acid is one that has its first double bond at the <u>methyl </u>end of the molecule.

Explanation:

Fatty acids will have a methyl end and a carboxylic acid end and the long carbon chain.

The number of hydrogen atoms attached to the carbon atoms depends upon its saturation type – saturated or unsaturated fatty acid.

The main advantage of the unsaturated fatty acids is that they have fewer hydrogen atoms because they are replaced with a double bond between the carbon atoms.

There are both short chain (carbon atoms 18 or less) or long chain (more than 20) fatty acids.

Omega-3 fatty acids are polyunsaturated fatty acids (PUFA). Depending upon the carbon chain length, the first C=C double bond occurs between the third and fourth carbon atom from its methyl end on the carbon chain of the omega-3 fatty acid.

Omega-3 fatty acids are recommended by dieticians due to its immense health benefits especially for the heart since it reduces blood triglyceride level, blood pressure, plaque formation, and the risk factors for heart attacks or failure. These are also good for the eyes, to treat mental depression, and for fetal brain development during pregnancy.

7 0
3 years ago
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