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Softa [21]
3 years ago
9

"Helmholtz’s study of nerves in the frog showed that A. there was specificity in sensory nerves B. there was specificity in moto

r nerves C.nerves conducted on an all or none basis D. the speed of neural transmission was measureable"
Biology
1 answer:
tresset_1 [31]3 years ago
8 0

Answer: The answer is D; The speed of neural transmission is measurable

Explanation:

Helmholtz constructed an apparatus specially to measure short time intervals of the order of ten-thousandths of a second, Helmholtz was able, in an elegant experiment published in 1850, to measure precisely the speed of conduction of the nerve signals in the motor nerve of the frog's leg.

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Anon25 [30]

Answer:

I would say D

Explanation:

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3 years ago
What is the biggest source of ocean pollution?​
Juli2301 [7.4K]

Answer:

Eighty percent of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source pollution, which occurs as a result of runoff. Nonpoint source pollution includes many small sources, like septic tanks, cars, trucks, and boats, plus larger sources, such as farms, ranches, and forest areas.

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3 years ago
Which sequence correctly increases complexity in the level of biological organization?
EleoNora [17]

Answer:

the correct answer would be

A. atoms, molecules, cells, tissues, organs

7 0
4 years ago
Which describes a grizzly bear’s habitat?
Salsk061 [2.6K]
Grizzy bear's habitat is a physical area where the bear lives. All grizzy bears live in this habitat to survive.
7 0
3 years ago
Compare and contrast the three different types of symbiotic relationships that we went over in class. Be sure to provide an exam
tino4ka555 [31]

Answer:

Mutualism

Commensalism

Parasitism

Explanation:

In mutualism, both organisms benefit.

<em>Ex</em>. Sea anemone and clownfish. Clownfish gives the anemone food, the anemone allows the clownfish to use it as a home.

In commensalism, one organism benefits, while the other is neither harmed nor benefited.

<em>Ex</em>. Sharks or whales and remora fish. The remora rides along the belly of whales or sharks and when it eats, the pieces that float around, the remora eats the excess.

In parasitism, one organism is benefited, while the other is hurt.

<em>Ex. </em>Dogs and fleas. The fleas are constantly biting and feeding off of the dog's skin. The dog gets bitten and itches a lot.

Mutualism and commensalism are similar because at least one organism is benefited.

Parasitism and commensalism are different because instead of one organism not getting hurt, like in commensalism, that happens in parasitism.

8 0
4 years ago
Read 2 more answers
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