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expeople1 [14]
2 years ago
10

Which of the following distinguishes the outer limits of a standard growing season?

Biology
1 answer:
Elis [28]2 years ago
4 0

Answer:

frost dates

Explanation:

edge 2021

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A tissue sample was taken from an infected wound and cells were viewed under the microscope. Each cell contained a cell wall, ce
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An unidentified prokaryotic cell. Thus, option "4" is correct.

<h3>What atr prokaryotes and eukaryotes?</h3>

Prokaryotes are the unicellular organisms that do not contain nucleus and membrane bound organelle in their cell. Their genetic material is present in the cytoplasm.

On the other hand, eukaryotes have true nucleus that contains the genetic material (DNA). They also contain membrane bound specialised organelles (such as mitochondria, endoplasmic reticulum, golgi complex).

Thus, option "4" is correct.

To learn more about Prokaryotes  click here:

brainly.com/question/15329345

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2 years ago
Choose all the answers that apply. In a parasitic relationship _____. the parasite harms the host the host must adapt to defend
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The Parasite harms host
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6 0
3 years ago
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Down syndrome is a genetic disorder that is also called trisomy 21. A person with Down Syndrome has an extra copy of chromosome
pochemuha

Down syndrome is  caused by the nondisjuction of the chromosome 21.

Due to the vulgarism checker, the answer can not be posted on this text editor so see attachment for more details

Learn more: brainly.com/question/9782041

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Phosphofructokinase (PFK) is an enzyme that converts fructose 6-phosphate to fructose 1,6-bisphosphate, by adding a phosphate gr
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Answer:

D. Allosteric activator

Explanation:

In an enzyme, the allosteric site is a site/motif different from the active site, (i.e., the site with catalytic activity) which is able to interact with regulatory effector molecules in order to activate or inhibit enzymatic activity by influencing the tridimensional (3D) structure of the enzyme. An allosteric activator is an effector molecule with the ability to bind to a specific enzyme at a different site than the active site, thereby modifying the shape of the enzyme and increasing the affinity of this enzyme for its substrate. Moreover, Adenosine monophosphate (AMP) is a nucleotide composed of a phosphate group, a sugar ribose, and an Adenine (A) base. This effector molecule (AMP) has shown to allosterically stimulate diverse enzymes in physiological conditions (e.g., AMP-activated protein kinase).

5 0
3 years ago
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