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4 years ago

Which of the following is an adaptation to permafrost?

Biology

2 answers:

Maurinko [17]4 years ago

8 0

it is C. Shallow roots, for those using edginuity just took the test

creativ13 [48]4 years ago

5 0

Answer:

The correct answer is option c. "shallow roots".

Explanation:

Some plants had developed shallow roots as an adaptation to permafrost. The artic plants have shallow roots because the permafrost does not allow the plants to push its roots deep down under the frozen topsoil looking for liquid water. Most arctic plants have a very short growing period of time since the liquid water above the frozen topsoil lasts liquid only from 50 to 90 days per year.

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The fact that choanoflagellates and collar cells of sponges resemble each other supports the inference that ________. Group of a

antoniya [11.8K]

Answer:

choanoflagellates and sponges are sister groups

Explanation:

The choanoflagellates are small unicellular organisms belonging to the Protista kingdom. These microorganisms are collared flagellates morphologically similar to the choanocyte cells of animal sponges, which have a central flagellum surrounded by a collar of microvilli. In consequence, it has been suggested that choanoflagellates may represent the closest living relatives of primitive metazoans (i.e., they are sister groups to sponges). This hypothesis has recently been supported by both molecular phylogenetic and comparative genomic analyses.

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3 years ago

What are not properties of enzymes<br>

gayaneshka [121]

Answer:

A catalyst

Explanation:

Enzymes are not a catlysy

8 0

3 years ago

Why is ∆Hf0 62.4 kJ/mol for I2(g), but 0.0 kJ/mol for I2(s)?

Aloiza [94]

Answer:

12(s) is in its standard state.

Explanation:

6 0

3 years ago

Please HELP////2. A couple are both phenotypically normal, but their son suffers from hemophilia, a sex-linked recessive disorde

katrin [286]

Answer:

1/4 suffer from hemophilia

1/4 are heterozygous

Explanation:

So since they are normal but their son isn't it is assumed that the mom is the carrier since the dad has to be X^HY

X^HY x X^HX^h

Set up a pedigree

X^HX^H X^HX^h

X^HY X^hY

1/4 suffer from hemophilia (X^h)

1/4 are heterozygous (X^HX^h)

8 0

2 years ago

A chemical mutagen that is structurally similar to a nucleotide but has different base-pairing rules is called a ________.

OLga [1]

Answer:

Nucleoside analog

Explanation:

Nucleoside analogs are the mutagenic chemicals that have a structure that is similar to the normal bases of the nucleotide and thus can be incorporated in the DNA during the process of replication, however as it has different base-pairing rules than the normal nucleotide base it can lead to mutations.
An example of a nucleoside analog is acyclovir which an analog of guanosine.

3 0

3 years ago