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viva [34]
3 years ago
10

In food chains, the flow of energy is always

Biology
1 answer:
gtnhenbr [62]3 years ago
6 0

Answer:

One-Way

Explanation:

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how does the random alignment of homologous chromosomes contribute to genetic variation in a population
SCORPION-xisa [38]

The assortment of homologous chromosomes during meiosis is random and generates genetic variation, the raw material for evolution.

During metaphase I of meiosis, homologous chromosomes are lined up at the equator plate of the cell in order to be separated (assorted) in anaphase I.

The separation of homologous chromosomes during meiosis I is random. Daughter cells receive unique gene combinations from an original parent cell.

Subsequently, haploid cells got from two successive meiotic divisions fuse during fecundation to form a diploid (2n) zygote.

During prophase I, non-sister chromatids interchange genetic material by a process known as recombination. This genetic process also increases genetic variation in daughter cells.

In conclusion, the assortment of homologous chromosomes during meiosis is random and generates genetic variation.

8 0
2 years ago
Which statement best explains how respiration and photosynthesis are related to one another?
PIT_PIT [208]

Answer: D

Explanation:

photosynthesis - takes in water, energy from the sun, and carbon dioxide and releases oxygen and glucose (sugar)

respiration - takes in glucose and oxygen, and releases water and carbon dioxide and energy

they are basically the opposite

HAVE A GREAT DAY :)

6 0
3 years ago
Help me on these pleaseeeee
SVEN [57.7K]

A Dew forms on grass when water vapor forms when molecules cool and join together.

B  Gases expand when heated and contract when cooled.

4 0
3 years ago
Write a DNA sequence of 9 bases (recall that DNA sequences are combinations of A's, G's, C's, and T's). Transcribe the sequence
jonny [76]
So what you can to is like AGT GCA TCA then you can transcribe it to UCA CGU AGU. Finally all you need to do is put it in the codon chart Ser is the first Arg is your second and Ser is your last.
8 0
3 years ago
In three to five sentences, construct an argument that shows why lichens are necessary to establish a new ecosystem after an ext
AleksandrR [38]

Answer:

bcz lichens grow only there have no pollution and new ecosystem have no pollution in this way lichen are necessary after disturbances bcz after pollution have created by human

3 0
3 years ago
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