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padilas [110]
3 years ago
14

A marathon runner frequently experiences muscle cramps while running. if he stops running and rests, the cramps eventually go aw

ay. the cramping in the muscles most likely results from
Biology
2 answers:
Pavlova-9 [17]3 years ago
5 0
Muscle cramps are creating from lack of water
r-ruslan [8.4K]3 years ago
4 0

Answer:

The causes of cramps are varied:

-Low accumulation of metabolites affecting the contraction

-Low amount of electrolytes

-fluid loss

-stress associated with the environment, such as heat and cold.

Explanation:

Although these are some factors that produce cramps, they are not the only ones, it is necessary to take into account if the person has a history of cramps, or to compete at a faster rate than the rhythm of training. Sometimes these cramps occur in the types of muscles that intersect with two joints. Another possible cause of cramping has to do with the accumulation of lactic acid causing persistent contraction in the muscle.

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What adaptation do seed plants have in addition to the seed that is not found in seedless plants?
tatiyna

Answer:

The correct answer will be option-pollen.

Explanation:

The pollen are the male gametophyte which is produced in the seed plants.

The pollen produce male gametes after entering the female gametophyte. The male gametes fuse with the egg cell and form the embryo inside ovary which matures and forms seeds.  The vascular seed plants lack these pollen but instead produces male gametes in gametangia which are replaced by the pollen in the seed plants.

Thus, option-pollen is the correct answer.

8 0
3 years ago
Norway rats have 42 chromosomes in their diploid cells. If a diploid rat cell enters meiosis, how many chromosomes and double-he
vitfil [10]

Answer:

21 chromosomes

Explanation:

Meiosis is a type of cell division that produces 4 haploid daughter cells (i.e., gametes) from a single diploid cell. This parental cell undergo one (1) cycle of DNA replication and two (2) cell divisions, thereby, in the case of the Norway rats that have 42 chromosomes, the final number will be 21 (21 x 2= 42)

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3 years ago
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