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julsineya [31]
3 years ago
6

Ap bio definition of primary productivity

Biology
1 answer:
diamong [38]3 years ago
8 0
Mammals reproduce to the race
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Which organelle in the plant cell would mainly help the cell take water or get rid of water?
aliya0001 [1]
Plants regulate their water levels in two main ways: Stoma and Vacuoles.

Stoma are bean shaped cells on the leaf that allow water and gas to exit. They open and close to regulate water.

Vacuoles are organelles that store water and fluids, which help regulate them.
4 0
3 years ago
The movement of gases into and out of the lungs is known as
Sunny_sXe [5.5K]
Ventilation is the process which the air moves in and out of the lungs. Diffusion is the movement of gases without the use of energy and or effort by the body. Hope this helps!:)
4 0
3 years ago
Insect wings may have begun to evolve as lateral extensions of the body that were used as heat dissipaters for thermoregulation.
Mariulka [41]

Exaptation

Explanation:

In this example, the lateral extensions that developed were meant for thermoregulation.

But these became sufficiently large to support gliding through the air and later on were used for flight.

Thus the structure assumed a function for which it was not meant and its original function shifted to a completely different dimension giving rise to modern insect wings. So we can say that this is an example of Exaptation.

8 0
3 years ago
Can you list the types of organisms in order in which they would appear during primary succession?
nignag [31]

Answer:

Primary succession is one type of the ecological succession which takes place on the land devoid of vegetation or barren land.

The species which first flourishes on this barren land are known as pioneer species which includes the species of bryophytes and pteridophytes like lichens and mosses.

These lichens and mosses help breakdown the barren rocks through chemical leaching and help increase the nutrient content. This allows the ferns and small pteridophytes to grow.  

Then the area is colonized by the intermediate species which includes herbs, shrubs later trees. These intermediate species help attract the animals and thus help establish the biological community.

Thus, Lichens mosses → herbs→ shrubs →trees.

7 0
3 years ago
Cara is explaining to her sister how the solar system formed. Which description would she use to explain the solar nebula
Alexandra [31]

Answer:

The correct answer is A. a rotating cloud of dust and gas.

Explanation:

Nebulae are regions of the interstellar medium (clouds) made up of gases (mainly hydrogen and helium) and dust. In other words, nebulae are concentrations of gas in which we find hydrogen, helium and stardust in greater quantities. They are structures that are actually very important for the universe, this because inside it is the place where stars are born, which arise due to the condensation and aggregation of matter. The nebular theory states that the Solar System reached the form current from a solar nebula (a gas cloud), more than 4.5 billion years ago. The large cloud of molecular gas was affected by a certain phenomenon that would have taken place in the vicinity. Like the explosion of a supernova or the passage of a star that would produce a strong gravitational impact. The result of this event made the matter agglomerate in different places. The high concentration of matter caused the nebula to collapse. Becoming a protostar, (bodies whose characteristic is to be surrounded by clouds and contain preplanetary matter inside), that is, gaseous matter in the outermost part and solid inward. At the core of this structure, the temperature is so dominant that nuclear reactions take place to compensate for the gravitational force. This leads to a hydrostatic equilibrium and the formation of a fundamental star: the Sun. The rest of the mass flattened, forming a protoplanetary disk where the protoplanets were being formed, which would evolve to become the current planets, their satellites and the others bodies of the solar system.

3 0
3 years ago
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