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Dmitry [639]
3 years ago
14

Explain the energy flow in the ecosystem?

Biology
1 answer:
xxMikexx [17]3 years ago
6 0

Answer:

Explanation:

Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. ... The low rate of energy transfer between trophic levels makes decomposers generally more important than producers in terms of energy flow.

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The trait for flower color in a plant has red and white alleles. The red color is the dominant trait. What is the phenotypic rat
Aleonysh [2.5K]

Answer:

4 red : 0 white

Explanation:

    R  R

r    Rr   Rr

r    Rr   Rr

Since the dominant allele is RR this means that it will always be red

5 0
3 years ago
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According to the _____ theory, when a physiological need, such as hunger, creates an aroused tension state, it drives the organi
madreJ [45]

Answer:

the drive-reduction theory

Explanation:

The drive-reduction theory is one of the theories of motivation.

This theory contains the idea that a physiological need creates a drive, which in turn motivates an organism to satisy their need.

The theory targets homeostasis or biological balance.

When there is a need such as lack of water, the need would cause a drive to be developed (thirst).

The drive would activate a response (search for water to drink).

The response is then terminated when the need has been satisfied.

4 0
3 years ago
Why are single-stranded binding proteins necessary for DNA replication?
Margarita [4]

Answer:

d.They prevent the two parental strands from coming together again.

Explanation:

During the process of DNA replication, the two DNA strands should be separated from each other to serve as a template. To separate the two DNA strands, the helicase enzyme breaks down the hydrogen bonds between the complementary base pairs of the DNA strands. The process uses ATP as a source of energy.

Due to the presence of complementary base pairs, the separated DNA strands have a tendency to reanneal by the formation of hydrogen bonds. To prevent the reannealing of separated DNA strands, single stranded binding proteins bind to them. Binding to single stranded binding proteins to the separated DNA strands does not allow them to reanneal.  

8 0
3 years ago
Explain why photosynthesis and cellular respiration are considered to be paired processes​
denis23 [38]

Because they are the same chemical reaction but reversed. Cellular respiration takes glucose (from nutrient/food) and oxygen (from atmosphere) in order to make CO2 (think about exhaling) and H20 (water).

(I don't remember this clearly so it may be wrong, i'll look into it and come back!)

4 0
3 years ago
What gas is produced as a result of respiration
adelina 88 [10]
Carbon dioxide because its a fas
8 0
3 years ago
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