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Setler [38]
3 years ago
15

Why are seedless vascular plants considered paraphyletic rather than monophyletic?

Biology
1 answer:
dem82 [27]3 years ago
8 0
<span>The group includes their common ancestor but also the seeded descendants of that same ancestor.</span>
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1.) What gives water all its properties? 2.) What type of bond joins H2O to another H2O and forms cohesion? 3.) What property of
Yuri [45]

Answer:

1. polarity

2. hydrogen bonding

3. High heat capacity

4. Adhesion

5. polarity

6. surface tension

7. high heat vaporization

8. hydrogen bonds form a rigid and stable network

9. Water is a polar substance and fat is a nonpolar substance.

10. Cohesion

Explanation:

Water is a polar molecule that is held together by hydrogen bonds to form strong cohesive forces. This accounts for the surface tension in water. Surface tension is the force acting on water that it makes to behave like a stretched elastic skin.

The polarity of water accounts for the fact that it is found in several parts of the body where it largely plays the role of a polar solvent.

High heat capacity of water enables it to function well in the area of thermoregulation in the body. High heat vaporization accounts for the fact that water helps maintain extreme temperature changes in an area.

When in solid state, the hydrogen bonded network in water becomes rigid and forms a very stable network of water molecules. Being polar, water does  not interact with fat because like dissolves like.

In plants, the attachment of water to plant roots is known as adhesion and is necessary for the capillary movement of nutrients to plants via the root.

5 0
3 years ago
Explain the precautions for immunizing children with Bruton's agammaglobulinemia.
topjm [15]

Answer:

Avoid using killed vaccine for administration.

Explanation:

Bruton's agammaglobulinemia may be defined as the X linked disorder that affects the immune system of an individual. This disease is mainly caused by the mutation in the gene responsible for coding the  Bruton tyrosine kinase.

The children suffering from this disease require special immunization and some precaution must be followed before immunizing them. These patients are not allowed to immunizes with the live vaccines as these vaccines can evoke the immune response strongly and child may get infected by the disease. The individual should not given immunosuppressive drugs or corticosteroids.

Thus, the answer is avoid using killed vaccine for administration.

8 0
3 years ago
This energy flows through organisms and the environment and eventually flows out of the biosphere as
kakasveta [241]

Heat is then the by-product of the light energy from the Sun flowing through the biosphere. Organisms are inevitably dependent on sunlight to perform essential biological processes in order to sustain life. In the absence of this energy, all the organisms on Earth would die. 



8 0
3 years ago
Which of the following does NOT influence population change?
Valentin [98]
The answer is F. Interest Rate
5 0
3 years ago
Drag each tile to the correct box. Explain the process in which hormones secreted by the pancreas function with respect to incre
ValentinkaMS [17]

Answer:

1) intake of glucose molecules from the blood by specific transporters

2) high amount of glucose in the blood, sending signals toward the pancreas

3) binding of hormones with receptors on the liver

4) release of hormones from the receptors

5) synthesis of hormones by beta cells

Explanation:

During ingestion of the meal, insulin is produced in response to high blood glucose levels (concentration of glucose increases after digestion of food). Like other hormones, insulin performed its action through binding specific signals to specific receptors e.g, liver, muscle cells.  The high glucose level in the blood send signals through hormones to liver, fat, and muscle cell receptors. These receptors release specific hormones to beta cells of the pancreas. In response to the signals from receptors, beta cells synthesize insulin to minimize glucose levels in the bloodstream.  

5 0
3 years ago
Read 2 more answers
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