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tensa zangetsu [6.8K]
3 years ago
11

3.

Biology
2 answers:
arlik [135]3 years ago
3 0
Hibernation Explanation it just is
mario62 [17]3 years ago
3 0
Hibernation because that’s what animals do
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One fish species occurs by itself in several nearby lakes . The other occurs by itself in other lakes (Lakes N, O, P, Q, ... Y).
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Answer:

b. Phylogenetic speciation

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Autapomorphies are molecular or morphological traits found in a unique taxon. An autapomorphy is not found in outgroup  and therefore these traits are used to classify a group into a category (i.e., species, genera, family, etc)

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5.which of the following organelles is the control center of a cell?
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nucleaus is the answer and answr my question because u only want points btw

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In pigs, curly tails (T) are dominant over straight tails (t). If a pig is heterozygous for a curly tail, what is the pig's geno
n200080 [17]

Answer:

The pig's genotype is Tt

Explanation:

As mentioned in the question that curly hair allele T is dominant over straight tail allele t.

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Hope it helps! :)

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3 years ago
Tetraethylammonium (TEA) is a potent neurotoxin that results in death from respiratoryfailure within 10 to 30 minutes. When a ne
Sever21 [200]

Answer: B voltage-gated potassium channels

Explanation:#

Tetraethylammonium is a pH- potassium channel  blocker.

Therefore, it prevents the escape  of potassium ions from the axoplasm, which makes it ( axoplam) positive from the rise in potassium ions concentration , since potassium ion is positive charged and intracellular ion . This initiate repolarization which returns to membrane state potential.

Since it is pH -potassium ion blocker; it does not affect the voltage-gated sodium ion channels, so action potential can occur. But after the sodium gated channels were closed,action potential drops but the concentration of potassium rises because  :

1. They are naturally intracellular ions

2. They cannot leave the axoplasm because the channels has been shut. Therefore this stabilizes the membrane potential

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