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zzz [600]
3 years ago
15

Which disturbance would result in primary succession ?

Biology
1 answer:
NikAS [45]3 years ago
4 0
A disturbance would be things like lava, flows, newly formed sand dunes, or rocks left from a retreating glacier. These are disturbances because Primary Successions happen in lifeless areas, which soil is incapable of sustaining life.
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Behavior can best be defined as
sertanlavr [38]

Answer:

Behavior is best defined as anything a person says, does, or feels.

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A moss-covered log is overturned by a hungry bear looking for insects to eat. The bear disturbs an ant colony, and some chipmunk
REY [17]

Out of the following given choices;

<span>A)   </span>They are all of the same species.<span>
B) They all require the same type of food. 
C) They are part of a community.
D) They are abiotic factors in a forest.</span>

The answer is C. A community is the summation of all the species population interacting in a habitat/ecosystem. These interaction between the population could include commensalism, predation, symbiosis, parasitism, and etcetera.

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3 years ago
What are the three most abundant gases in earth's atmosphere?
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B. Nitrogen oxygen, Oxygen, and argon 
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3 years ago
The cholera toxin, an AB exotoxin, attaches an ADP-ribose group to the host's stimulatory G factor (Gs). The normal function of
SCORPION-xisa [38]
<h2>b) option is correct </h2>

Explanation:

  • Some bacterial toxins cause disease by  altering the activity of G protein, cholera toxin is one of them
  • Cholera toxin catalyse ADP ribosylation of Gs and blocks GTPase activity thus Gs GTP become permanently active
  • Constitutive activation of Gs protein continuously induce adenylyl cyclase, cytosolic cAMP level rises that leads to activation of protein kinase A (pKA)
  • Activated pKA catalyse phosphorylation of two transmembrane proteins of intestinal epithelial cells:
  • CFTR cause excessive outflow of Cl- ion and Na+ H+ exchange cause efflux of Na+ ion, both enters in gut and form Na+ Cl-
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6 0
3 years ago
Here are some of the tRNA molecules in Lucy's white blood cells. Let's see if tRNA #1 is carrying the correct amino acid for its
Kitty [74]

Answer:

For the tRNA anticodon CCA the corresponding codon is GGU, which codes for the amino acid Glycine (Gly).

Explanation:

Transfer RNA or tRNA is responsible for driving the right amino acid into protein synthesis, once the mRNA codon has been translated by the ribosome. It is for that reason that each mRNA codon must have a complementary tRNA anticodon.

The RNA pairing rules is that each nitrogenous base has a complementary base, so:  

- Adenine is complementary with uracil A=U

- Cytosine is complementary with Guanine C=G

In this case, it can be seen that:

  • <em>For the anti-codon:  CCA</em>
  • <em>Codon:                      GGU</em>
  • <em>Aminoacid:               Gly</em>

5 0
3 years ago
Read 2 more answers
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