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Alina [70]
3 years ago
11

Please select the word from the list that best fits the definition

Biology
1 answer:
Pani-rosa [81]3 years ago
8 0

Answer:

The correct answer is - active transport.

Explanation:

Active transport is the movement of a substance that crosses the cell membrane against the concentration gradient and therefore requires energy in the form of ATP. In contrast, passive transport does not require energy for the movement of a substance through the cell membrane as it moves to the concentration gradient.

This movement of molecules is towards the region of high concentration from the region of lower concentration through the cell membrane by elcectrochemical gradient or ATP.

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In the process of beginning an action potential, the threshold refers to:
Dafna1 [17]

Answer:

Option (3).

Explanation:

The action potential may be defined as the change in the electric potential of the cell that helps in the propagation of the nerve impulse. The resting membrane potential of the cell is -70mV.

Threshold potential may be defined as the minimum potential required to transmit the nerve impulse. If the difference between the excitatory signal and inhibitory signal exceeds the minimum intensity, known as threshold. The propagation of nerve impulse occurs.

Thus, the correct answer is option (3).

4 0
3 years ago
How do you know where the Big Dipper starts
scZoUnD [109]

Answer:

NORTH STAR AND THE LITTLE DIPPER

Finding the Big Dipper in the night sky is the easiest way to find Polaris, the North Star, located in the constellation Ursa Minor, the Little Bear. The Big Dipper rotates around the north celestial pole, and always points the way to the North Star

Explanation:

3 0
3 years ago
Read 2 more answers
Every living thing must reproduce to prove that they are alive
katrin [286]

Answer:

The correct answer is true.

Explanation:

The biologist has proposed few characters on the basis of which a living organism can be distinguished from non-living things like cellular organization, reproduction, heredity material, metabolism, homeostasis, growth and development.

For a living organism to maintain their continuity on the planet has to reproduce via asexual or sexual means through which its genetic material can be passed on to its offspring.

Thus, true is the correct answer.

8 0
3 years ago
Read 2 more answers
A hormone attaches to a target cell at a receptor protein. What do you know about this hormone?
julsineya [31]
C. I think so, it seems like it
8 0
3 years ago
Which two kinds of information can scientists gather using radar?
makkiz [27]

The correct answers are C. Amount of rainfall, and D. Wind speed.

Explanation

Radars are instruments that were created by humans to detect objects, people, places, among others, through signals. Radars are devices used in different fields such as war, aviation, climatology, geography, among others. One of the best known is the Doppler radar, which is a climatological tool that is used to detect the intensity, size, quantity, and direction of rainfall. Likewise, rainfall is influenced by the direction and speed of the wind, data that can also be obtained using this tool. One of the purposes for which this object was created was the early detection of natural phenomena related to rains, and winds such as hurricanes, electric storms, hail, among others. Therefore, the two objects that scientists can obtain with a radar are C. Amount of rainfall, and D. Wind speed.

4 0
3 years ago
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