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Alex Ar [27]
3 years ago
8

Help......................................................

Biology
1 answer:
Serga [27]3 years ago
8 0

Answer:

A. solar energy in the rays of sunlight

Explanation:

photons in the sunlight rays will excite the electrons in the water molecule and hence will provide the energy for calvin cycle.

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Two frog populations (same species) living in two neighboring lakes sing slightly different courtship songs. Increased irrigatio
dedylja [7]

Answer:

C. The songs will become more similar to each other.

Explanation:

To answer this question, first, you need to remember that both populations belong to the same species, so they can mate because there is no reproductive barrier. The only limiting physical factor impeding individuals of both groups to cross was the piece of land before the land got wetter. So once populations got together, individuals can easily mate.

One population´s males exhibit a courtship song that slightly differs from the one of the other group. This difference has a genetic basis. But females hardly notice the difference. All of them prefer loud frogs to quieter frogs, independently of the population to which they belong.

So when the two populations get together, individuals get mixed. Females do not recognize males of their group, and during the breeding season, all females will mate the most with louder males of any of the population. So females from population A might mate with males from population B, and females from population B might mate with males from population A. So after mating season, there is also a genetic mixture between populations.

The new generations will carry elements of both genotypes. So males´ songs will be even more similar to each other. Songs will become more similar to each other because individuals of both populations are mixed and mated, and their genes intercrossed, producing new individuals with genes of both populations.

8 0
3 years ago
A patient who has raynaud's disease will begin taking an alpha-adrenergic blocker. the patient asks the nurse how the drug works
ozzi
Vasodilation is the correct answer. :)
4 0
3 years ago
human blood consists of blood A,B,and o. However, there is one more blood group, AB,which contains alleles A and B in the same g
FromTheMoon [43]

This phenomenon is referred as Codominance. Codominance is termed as, the distinct expression of both alleles of a gene.

8 0
3 years ago
What events cause succession to take place
deff fn [24]

Answer:

please give me brainlist and follow

Explanation:

Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time. For example, primary succession may take place following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new rock is formed.

3 0
2 years ago
If a dna sequence consists of 12 nucleotides, how many mrna codons will there be?
dexar [7]

Since each codon consist of 3 nucleotides, 4 cordons can be formed by 12 nucleotides. (but please make sure that you check this answer. I am not completely sure)

5 0
3 years ago
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