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labwork [276]
3 years ago
15

How much sunlight does the twilight zone get? none at all almost as much as the sunlight zone a lot in the summer but none in th

e winter the small amount that penetrates the sunlight zone
Biology
1 answer:
Cloud [144]3 years ago
3 0

Answer:

The area between 200 and 1,000 meters (656 and 3,280 feet) is the mesopelagic or “twilight” zone.

Explanation:

Light intensity in this zone is severely reduced with increasing depth, so light penetration is minimal. About 20 percent of primary production from the surface falls down to the mesopelagic zone.

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Water molecules diffuse through the cell membrane through aquaporins. How are these proteins helpful in osmosis?
romanna [79]

Answer:

Aquaporins acts as water channels that conduct water to and fro cell membrane during osmosis

Explanation:

Osmosis is a type of cellular transport in which water moves from a region of low solute concentration to a region of high solute concentration through a semipermeable membrane. The osmotic process occurs with the aid of selective protein channels called AQUAPORINS. They allow only the passage of water and prevent that of ions and solutes.

Aquaporins help in the osmotic process by creating a channel for the passage of water molecules across the membrane. In other words, aquaporins facilitate the speedy movement of water molecules across membranes via osmosis, which is normally slow due to the POLARITY OF WATER MOLECULES.

5 0
3 years ago
Which of the following is part of a clade believed to have died out, leaving no descendants?
galina1969 [7]

Answer:

Paranthropus robustus

Explanation:

2.5 million years ago some autralopithecines were identified by dating fossils from South Africa, meaning they lived a good period of time. Of these, Australopithecus africanus is well known and is a little closer to our species. Other fossils found in excavations in both southern Africa and eastern Africa have been found to be of more recent specimens 2.5 to 2 million years ago. These specimens were classified as Paranthropus robustus and Paranthropus boisei. These australopithecine species became extinct and left no current descendants.

8 0
3 years ago
PLEASE HELP ME ASAP!!!!!!!!!!!! GIVING 15 POINTS
m_a_m_a [10]
Contemporary landscapes result from many causes, including variability in abiotic conditions, such as climate, topography, and soils; biotic interactions, such as competition, mutualism, herbivory, and predation, that can generate spatial pattern even when environmental conditions are homogenous; natural disturbances. I hope this helps :)
6 0
3 years ago
A rose bush has waxy leaves and petals that make it difficult for herbivores to eat.
weqwewe [10]

Answer:

<em>False</em>

Explanation:

The wax acts as a sealant to reduce the stress on the roses during transit and up until the time they can be planted and established into ground soil.

6 0
3 years ago
What gas is represented by #1 on the graphic?
Sauron [17]
The answer is a. Nitrogen
8 0
3 years ago
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