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lapo4ka [179]
3 years ago
15

true or false? Body parts that share a common function but not common structure are called analogous structures.

Biology
1 answer:
ki77a [65]3 years ago
5 0
The answer to this question is True
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Down syndrome, the most common genetic condition in the United States, is also called trisomy 21. What does this mean?
77julia77 [94]

Trisomy=3 chromosomes; 1 more than the required pair (2)

21=the type of chromosome

So, here we can eliminate A and B.

Now we have C and D.

I know that when sperm cell(s) simultaneously fertilize [an] egg, a class of identical twins will form. Therefore, we can eliminate D, leaving us with merely C. Henceforth, C is your final answer.

4 0
3 years ago
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Name the pituitary hormones that have other endocrine glands as their target organs (include the hormone's abbreviation). Additi
Step2247 [10]
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8 0
3 years ago
Why in sexual reproduction do we use different cells from meiosis and not identical cells from mitosis?
Ganezh [65]

Answer:

Still need help?

Explanation:

3 0
3 years ago
Refer to Animation: Countercurrent Multiplication. What would you predict to be the effect on an animal species of having longer
attashe74 [19]

Answer:

The correct answers is: I would predict that animals with longer loops of Henle would be able to concentrate their urine more than animals with shorter loops, and thus they would more likely survive in desserts and other dry areas.

Explanation:

The<em> Loop of Henle</em> is a tubule system that connects the proximal convoluted tubule to the distal convoluted tubule in a nephron, the functional and structural unit of the kidney. Its primary job is to establish a concentration gradient in the kidney's medulla by creating a high urea concentration deep in the medulla using a countercurrent multiplier system that uses electrolyte pumps. Through this mechanism, <u><em>water is reabsorbed to concentrate the urine and impede dehydration</em></u>.

The length of the loops of Henle is of great importance for the countercurrent multiplier system - <u>the longer they are, the more concentrated the urine can get</u>. Therefore, animals with longer loops can survive better in habitats where there is not much water around.

6 0
2 years ago
Why do you think the dna is stored cold with the instagene matrix after boiling the samples?
seropon [69]
<span>The DNA is stored cold with the instagene matrix after boiling samples in order to slow bacterial growth. In that way, you will greatly slow down the activity of any remaining enzymes that could harm your DNA. Most likely it is a way of preserving the DNA and to avoid it bacterial contamination.</span>
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3 years ago
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