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hjlf
3 years ago
7

Carlsbad Caverns is unusual because the cave was originally carved from _________.

Biology
1 answer:
AysviL [449]3 years ago
5 0
D repeated rising and lowering the water table
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PLEASE I NEED HELP!!!!!!!!
Masteriza [31]

Answer:

An increase of 3,500 J

Explanation:

Given that,

Energy added by swimmer = 12000 J

Heat removed by the surrounding = 8500 J

We need to find the total change in energy. It can be calculated using the law of conservation of energy such as :

\Delta U=Q-W\\\\\Delta U=12000-8500\\\\\Delta U=3500\ J

As the change in energy is positive, it means that there is an increase of 3500 J.

5 0
3 years ago
Which modification is crucial in preparing an mRNA strand for proper translation? removal of introns and the splicing together o
yarga [219]
Removal of introns and the splicing together of exons.

Introns are regions of the DNA code that do not code for amino acids; therefore, they need to be removed before the mRNA strand is translated. Exons are the parts of the strand that do code for proteins, so they need to be pieced together once the introns are removed.
5 0
3 years ago
Suppose that, among related host species that carry related symbionts, the relationship is mutualistic in some pairs and parasit
romanna [79]

Answer & Explanation:

a) a) Mutualistic relationship differs from parasitism because the first one benefits both of the involved organisms. Otherwise, parasitism benefits only one of the organisms and it can harm the host. Therefore, the parasite would have to be smaller than the host and it would be somehow extracting energy from the host.

b) The direction of evolutionary changes would follow some kind of pattern, like coevolution. Therefore, analyzing the phylogenies individually and then contrasting them, would help to understand how the host, as well as the parasite, have been evolving.

c) The phylogeny would also help to understand what changed first, or if they changed together as a result of coevolution.

5 0
3 years ago
You are analyzing a human pedigree for a new disease and discover that the disease occurs with the same frequency in both sexes
Natasha_Volkova [10]

Answer:

The correct answer is A. autosomal recessive

Explanation:

In an autosomal disease, the mutation occurs in the autosomal chromosome, not in the sex chromosome. In autosomal recessive disease if both the defected allele from parent comes in the child then only the child would be affected by the disease. If the offspring have single defected allele than he is said to be a carrier.

So as the defect is not in sex chromosome the disease will occur in the same frequency in both the sexes and if parents are carriers which means they are not affected by disease than 25% offspring can have the disease because out of four offspring one can get both the defected allele, one from each parent. So the correct answer is A.

6 0
3 years ago
How leaf stomata can be used as bioindicators of environmental change?​
kirza4 [7]

Answer: Stomata densities change in response to changing atmospheric levels of carbon dioxide. Stomata may also vary in response to the amount of annual rainfall in different localities.

Explanation:

5 0
3 years ago
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