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Hoochie [10]
3 years ago
6

What is one evolutionary advantage pteridophytes have over bryophytes?

Biology
1 answer:
Genrish500 [490]3 years ago
8 0
Pteridophytes are a vascular plant and since bryophytes have no vascular system they are not capable to transport the water and nutrients from one part of the plant to another but Pteridophytes can.
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Axons of the nervous system are described as afferent and efferent according to the direction in which they carry information. W
Ahat [919]

Answer:

The correct option is b) motor output of the spinal cord

Explanation:

Motor neurons, also called afferent neurons, drive impulses from the brain and spinal cord to the receptors (eg, muscles). They are the motor output component of the spinal cord.

The spinal cord is a cord of nerve tissue that runs inside the spine. It conducts the nerve impulses that arrive from the receptors to the brain, and the responses with the motor orders from the brain to the effector organs. Thus, the brain receives the information and can develop an order that modifies the reflex response given by the spinal cord. A spinal nerve has two nerve roots: a motor and a sensory root. The motor root has nerve fibers that carry signals from the spinal cord, to the muscles to stimulate contraction and produce muscle movements, the fibers are efferent as they leave the medulla to the periphery through the anterior roots of the spinal nerves.

5 0
4 years ago
1. The resistance of the body to a pathogen is
aleksandr82 [10.1K]
3 cancer would be your answer
3 0
4 years ago
Economists often use an economic model that reflects the total amount of goods and services required at all possible price level
pshichka [43]
The answer is letter D.
<span>
Economists often use the aggregate supply and demand model to reflect the total amount of goods and services required at all possible price levels during a specific period. It reflects the overall price of foods and services in an economy for a given period and is often illustrated with the supply-demand curve. This shows the relationship between price levels and quantity of output that a particular firm is willing to provide to the general public.</span>
6 0
4 years ago
Allison and Heather are going to conduct an experiment to see whether salt affects the growth of plants. They gather five groups
SIZIF [17.4K]

Answer:

The dependant variable is the growth of the plants.

Explanation:

The independent variable is what changes the dependent variable.

for example, the type of salt concentration ( Independent variable ) is/ isn't going to change the growth ( dependant variable ) of the plant.

7 0
3 years ago
The ecosystem on the coast of Virginia Beach will likely experience the highest amount of disturbance from —
Mama L [17]

Answer:

The construction of a new pier.

Increased non-motorized boat traffic would not really do anything, because the ocean would wash it away like always.

Recreational fishing wouldn't pose such a threat, we have been doing this for thousands of years.

Humans swimming around a pier wouldn't pose sucha threat either- they will not kill anyone.

But the pier would release a lot of sewerage, oils, and more harmful things than all of these other things combined.

Hope it helps!

4 0
3 years ago
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