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Anna11 [10]
2 years ago
15

The Hardy-Weinberg law is used to calculate allele and genotype frequencies ____. Question 1 options: in small populations when

mating is random in migrating populations when some alleles confer an evolutionary advantage over other alleles the population descends from a single ancestor
Biology
1 answer:
Solnce55 [7]2 years ago
7 0
Your answer can be found on quizlet, Brainly won’t let me comment the answer. Just copy+paste :)
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Producers or Primary Consumers are the beginning link in a food chain while Decomposers or Tertiary Consumers are at the end of
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Answer: The given statement is True.

Food chain can be described as the sequence of transfer of energy and matter among different organisms present within an ecosystem.

It starts with producers ( occupying the first trophic level), which are consumed by consumers in a successive manner ( primary consumer→ secondary consumers→ tertiary consumer or decomposers).

Therefore, producers are beginning link in a food chain whereas decomposers occupy the last level in a food chain.


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What piece of evidence would best indicate that the fossil is human
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pelvic blades rotated inward

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A carrier of a genetic disorder who does not show symptoms is most likely to be ________ to transmit it to offspring.
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A carrier of a genetic disorder who does not show symptoms is most likely to be heterozygous for the trait and able to transmit it to offspring. This particular individual has inherited a recessive allele for a genetic trait or mutation but does not display that trait or show symptoms of the disease. They are referred to as genetic carriers. The chance of two carriers having an offspring with the disease or genetic disorder is 25%
8 0
3 years ago
Help asap please!
andreyandreev [35.5K]

Answer:

Active transport:

  • requires energy
  • molecules move from low to high concentration sides
  • Na+ and K+ move by active transport

Simple diffusion:

  • molecules move from high to low concentration sides
  • molecules pass between lipids
  • small non-polar and polar molecules

Facilitated diffusion:

  • molecules move from high to low concentration sides
  • involves channel proteins
  • move large molecules

Explanation:  

  • Simple Diffusion is the pathway of only small molecules that freely move through the membrane by momentary openings produced by the lipids' movements. Diffusion is a slow process that requires short distances and pronounced concentration gradients to be efficient. An example of diffusion is osmosis by which water is the transported molecule.
  • Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient.  Glucose is an example of a hydrophilic protein that gets into the cell by facilitated diffusion.

Simple diffusion and facilitated diffusion are both passive transport processes because they only depend on electrochemical gradients, so they do not need any energy to occur.

  • Active transport is the transport of molecules that move against the electrochemical gradient, so it does need energy to happen. Molecules move from the lower concentration side to the higher concentration side of the membrane. Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential. An example of molecules moved by active transport are the Na and K.

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2 years ago
Enzymes always contain protein. True or False?
dimaraw [331]
The answer to that is False.
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3 years ago
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