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blsea [12.9K]
4 years ago
11

5. We say that a good predator-prey relationship keeps the two

Biology
1 answer:
zloy xaker [14]4 years ago
4 0

Answer:

It means that they keep each others' population regulated.

Explanation:

Without one or the other, ones' population would sky rocket and there would be too many in an unhealthy manner, or the other wouldn't be able to survive and their numbers would drop low.

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Birds feathers are modified scales
Alja [10]

Answer:

<h3>The genes that caused scales to become feathers in the early ancestors of birds </h3>
6 0
4 years ago
Lipids in a bilayer can diffuse laterally at a relatively fast rate, but \"flip-flop\" from one leaflet to the other very slowly
natima [27]

Answer:

  • flippases translocate lipids from outer (extracellular) leaflet to inner (cytosolic) leaflet,
  • floppases, move phospholipids from inner (cytoplasmic) leaflet to outer (extracellular) leaflet, ABC transporter, move phospolipids across the lipid bilayer down the concentration gradient
  • scramblases Not ATP-dependent, Activation may result in increased membrane lipid symmetry, translocate phosphatidylserine,  preventing apoptosis and engulfment by macrophages,  

Explanation:

Flipases are transportes that require energy for their functioning (ATP dependent) beause they move phospolipids across the lipid bilayer against the concentration gradient  (from extracellular side to cytosolic side).

Floppases are ABC transporters, opposite than flippases (move phospholipids from the cytosolic side).

Scrablases are bidirectional transporters, responsible for asymmetry formation. It also enables exposure of phosphatidylserineon the outer leaflet when it is necessary.

6 0
3 years ago
Why is the metric system important?
Alex73 [517]
It's important because it helps you measure things. The prefixes are telling you the distance or meters, etc.
8 0
3 years ago
Read 2 more answers
What is the process the does not require oxygen?
erastova [34]

Answer:

The process that does not require oxygen is fermentation.

Explanation:

Fermentation is an alternative route of cellular respiration for obtaining energy, in the absence of oxygen. In aerobic respiration, oxygen is the acceptor of electrons from NADH but, in anaerobic respiration, the electron acceptor is an organic compound.

The fermentation process does not occur in the mitochondria nor does it involve the electron transport chain, and has a low energy yield at the end of the process.

With respect to the other options:

  • <em>The </em><em><u>electron transport chain</u></em><em> and the </em><em><u>Krebs cycle</u></em><em> occur in the presence of oxygen.</em>
7 0
3 years ago
Gregor Mendel concluded that traits are
sweet-ann [11.9K]

Answer:

Gregor Mendel concluded that traits are <em>inherited</em><em>.</em><em> </em>

Either dominant or recessive.

Hope it helps!

5 0
4 years ago
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