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Grace [21]
3 years ago
11

A child has sickle-cell disease (ss) but neither parent is ill. What must be true of her parents genotypes?

Biology
2 answers:
timurjin [86]3 years ago
6 0
I think the answer is B
castortr0y [4]3 years ago
5 0
The answer would be B, because it would mean both parents passed the “s” down to their child from their sets of “Ss”.
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The production of new plants from underground stems miss an example of ? reproduction.
stepan [7]

Answer:

D.asexual​

Explanation:

Asexual reproduction of plants takes place with the help of specialized haploid cells, spores. In a dispute, the sexes do not differ. The organism that forms spores is called a sporophyte.

Isosporic plants form all the same spores, from which a bipolar gametophyte develops, which creates both types of gametes, male and female.

8 0
3 years ago
Why do mountaineers become breathless as they reach high altitudes?
garik1379 [7]

Answer:

C.  Oxygen concentration decreases as altitude increases

Explanation:

Higher altitudes have lower levels of oxygen and decreased air pressure.

3 0
3 years ago
Which of the following functions does the urinary system perform?
NeTakaya
It is all of these. Hope this helps! #Batgirl
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4 years ago
When antidiuretic hormone (ADH) levels are low ________. A a small volume of concentrated urine is excreted B most of the water
sasho [114]

Answer: option B - most of the water reaching the collecting ducts is not reabsorbed

Explanation:

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Thus, when antidiuretic hormone (ADH) levels are low most of the water reaching the collecting ducts is NOT reabsorbed, resulting in the passage of LARGE volume of dilute urine.

7 0
4 years ago
4. Identify the compounds your cells can break down to obtain energy.
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Answer:

glucose and oxygen which ultimately get transferred into ATP.

Explanation:

5 0
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