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GREYUIT [131]
3 years ago
5

How does the whole sporophyte/gametophyte generations thing work? This just does not make sense to me...

Biology
1 answer:
vagabundo [1.1K]3 years ago
7 0

Answer:

A mature sporophyte produces spores by meiosis, a process which reduces the number of chromosomes to half, from 2n to n. The haploid spores germinate and grow into a haploid gametophyte. At maturity, the gametophyte produces gametes by mitosis, which does not alter the number of chromosomes.

Explanation:

hope this helps!

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The rate of heat production is increased by increasing muscle contraction by movement is: Shivering thermogenesis Non- Shivering
vesna_86 [32]

Answer:

Shivering thermogenesis.

Explanation:

The rate of heat production is increased by increasing muscle contraction by movement is shivering thermogenesis because nerve impulses are transmitted to the skeletal muscles by the hypothalamus which will result to contractions that will produce heat.

Shivering thermogenesis is Contraction-mediated heat production High intensity shivering activates large muscles and produce more glycolysis which is then use as the main source for heat production

3 0
3 years ago
Which of the following
Pachacha [2.7K]

Phosphate groups of the nucleotides in the diagram are marked with W.

Option C.

<h3><u>Explanation:</u></h3>

DNA is a macro molecule which is formed of polymerization of deoxyribonucleotides. Four types of deoxyribonucleotides are present which are adenosine, guanosine, thymidine and cytosine triphosphate. These nucleotides are polymerized based on the genetic setup.

The phosphate groups attached with the sugar molecule are actually polymerized with the o glycosidic bond. That's marked with the letter W. These phosphate molecules are attached with the sugar molecules which actually are attached with the nitrogen bases. They in total forms a nucleotide, hence the whole DNA. X in the diagram are nitrogen bases and the Y are the hydrogen bonds between the complementary nitrogen bases

5 0
3 years ago
As atmospheric CO2 increases, the amount of CO2 dissolved in seawater is expected to increase as well. This produces more carbon
stepan [7]

Answer:

bicarbonate ions

Explanation: (HCO3-)

7 0
3 years ago
The Sun appears to move across the sky each day. What causes this?
Novay_Z [31]

Answer:

The earth is turning.

Explanation:

when the earth turns it causes the sun to move from one part of the sky to the other. The earth revolves around the sun. So when it become night time for example, the sun is just on the other side of the earth.

4 0
3 years ago
What’s amnio acids mean
Andrews [41]

Answer:

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7 0
3 years ago
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