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Marysya12 [62]
3 years ago
10

When you touch an infant's cheek, the infant will turn toward your hand, open his or her mouth, and search for the nipple. this

is known as the _____ reflex?
Biology
1 answer:
My name is Ann [436]3 years ago
3 0
This is known as the rooting reflex 
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In the garden pea, tall vine (D) is dominant over dwarf (d), green pod (Y) is dominant over yellow (y) and round seed (W) is dom
siniylev [52]

Answer:

3/8 tall, green, round

3/8 dwarf, green, round

Explanation:

<u>The progeny which are in highest ratio represent parental plants.</u>

Here in the given question, 3 out of 8 progeny are tall, green, round and 3 out of 8 progeny are dwarf, green, round which are the highest in number so they represent parental plants. The reason behind this is that during crossing over only two non-sister chromatids undergo crossing over while two other parental chromosomes remain intact. Out of the 4 chromosome types, 2 remain the same which will result in the same type of genotype of off-springs as of parents. So even if there is 100% chance of crossing over between non sister chromatids still only 50% will be recombinants rest of the 50% will represent parental type.

Another case may be when two genes are very near to each other then it is quite possible that the genes may not undergo crossing over at all in that case there will be no recombinants at all.

So, it simply means that parentals > recombinants or the progeny which are highest in number represent parentals.

In case of unlinked genes, parentals = recombinants.  But, <u>recombinants can never be greater than parentals.</u>

6 0
3 years ago
If fully dilated, the body's blood vessels could hold approximately 20 l of blood, which is how much more than normal
Softa [21]

what are your options?
normally, the average adult human body (with a weight between 150 and 180lbs) holds 4.7 to 5.5 liters of blood.
8 0
4 years ago
In order to maintain homeostasis, the systems of the human body work together to keep a constant internal temperature. Which of
Serjik [45]

Answer:

B. The nervous system signals the muscles of the muscular system to contract and warm the body.

Explanation:

4 0
3 years ago
A population of moose lived on an island in Lake Superior. There were no wolves on the island
melamori03 [73]
D is what most likely happened because the Moose population would theoretically decrease because Wolves are a predator of the Moose population. Moose population would not stay the same, or increase, it would decrease.
4 0
4 years ago
Why is the nucleus considered the command center of the cell
Alex

Answer:

It contains the genetic instructions for every function of the cell.

Explanation:

8 0
4 years ago
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