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Lunna [17]
2 years ago
10

Question 1 (Multiple Choice Worth 2 points)

Biology
1 answer:
Gelneren [198K]2 years ago
5 0

Answer:

1

Explanation:

because of more fish they allow more oxygen and due to of that increased algae blooms can come.

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Most animals living in the _________ rest during the day and are more active at night.
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Answer:

desert

Explanation:

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Which of the following shows the correct order in which light information travels through the eye?
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The field of study concerned with how the nervous system interacts with the immune system is known as ____.​ a. ​endocrinology b
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3 years ago
In a plant, leaf color and leaf shape are controlled by two linked genes Leaves of the wild-type plant are red. A recessive muta
Brrunno [24]

Solution :

Red is dominant over the white leaves and pointed is dominant over smooth.

Red = R ,    white = r

Pointed = P ,   smooth = p

Red, pointed x white,smooth ------ Parents

RRPP                 rrpp

RP                      rp  ----------------- Gametes

         RrPp    -------- $F_1$

  (red, pointed)

When this $F_1$ is test crossed,

RrPp  x  rrpp     ----  $F_1$ test cross

Gametes   → rp

RP ---------- RrPp - red, pointed - 36 parental type

Rp ---------- Rprp - red, smooth - 14 re- combination

rP ----------- rrPp - white pointed - 10 re- combination

rp ----------- rrpp - white, smooth - 40 - parental type

                                    Total =   100

As this ratio is deviating from 1:1:1:1, it indicated the two genes are linked.

Linkage strength = percentage of crossing over = map distance between the genes.

Percentage crossing = recombination frequency = percentage of recombination.

Recombination frequency $=\frac{\text{total no. of recombination}}{\text{total no. of progeny}}\times 100$

                                         $=\frac{14+10}{100} \times 100$

                                         = 24 %

                                        = 24 map units

4 0
3 years ago
Need help what is the heart mostly made of
melomori [17]

Answer:

An organ is a group of tissues that work together to perform a specific function. In the case of your heart, this function is pumping blood throughout your body. Additionally, the heart is largely made up of a type of muscle tissue called cardiac muscle.

Explanation:

6 0
3 years ago
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