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kolezko [41]
3 years ago
6

True or false darwin and haeckel used the analogy of a wheel to represent phylogenies.

Biology
1 answer:
AlexFokin [52]3 years ago
5 0

Answer:

true

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Please Help Make Sure you explain your answer i will be marking brainliest to the first person who has the right answer")
german

Answer:

B. Thermal energy will move from the plate to the fruit pop.

Explanation:

If you leave a frozen fruit pop that has a lower degree than the object you place it on, the object with the higher temperature will transfer heat to the colder object, which leads the cold object to melt.

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2 years ago
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Cell membranes are often called a "fluid mosaic" of lipids and proteins. What is the role of the cell membrane structures? Struc
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A .Structurally support the cell 
B.Store nutrients for the cell to consume 
C. Produce ATP to provide energy for the cell 
D. Selectively allow some materials into the cell

It would be A

The Cell membrane is like a wall it allows things to pass though regulated.


Hope that helps
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3 years ago
One substance has no membrane transporters to move it but can diffuse freely through open leak channels if there is a concentrat
Rama09 [41]
<h2>Urea </h2>

Explanation:

Urea is a small nitrogenous compound which is the main end product of protein catabolism in mammals

  • Urea is a nitrogen-containing substance normally cleared from the blood by the kidney into the urine
  • It is made predominantly in the liver from ammonia and bicarbonate and is one of the main components of urine
  • The rate of synthesis varies from 300 to 600 mmol/day depending on the protein intake
  • All of this urea eventually finds its way into the urine
  • Because urea makes up a large part of the obligatory solute excretion, its osmotic pressure requires significant volumes of water to carry the urea
  • Urea passively crosses biological membranes, but its permeability is low because of its low solubility in the lipid bilayer
  • Some cells speed up this process through urea transporters, which move urea by facilitated diffusion
  • Urea is passively reabsorbed in the proximal tubule, but its route of transport is not clear
  • Urea transporters have not yet been identified for the proximal tubule
3 0
3 years ago
Why does the word antibiotic suggest that these medications would be ineffective against viruses?
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Antibiotics are ineffective against viruses because viruses do not have cells. Viruses are infectious agents that live within the cells of other living things. Antibiotics work by breaking down the cell walls of bacteria or interfering with the bacteria's ability to repair its cell's DNA, according to How Stuff Works.
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3 years ago
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Both the arctic fox and snowshoe rabbit have made species adaptations over time that enable them to survive. For example, both c
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I think that these are A climate changes because they both got fur to match the snow/winter climate
I know it's not C cause this has nothing to do with food, and i don't think it's B either, so I think the best answer choice would be A
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3 years ago
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