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CaHeK987 [17]
3 years ago
15

First one that answers this question correctly will be marked Brainliest!!!!!!

Biology
1 answer:
anastassius [24]3 years ago
3 0

Answer: B)The continents were once connected.

Explanation:

There was probably some kind of earth quake or drift in the plains/plates causing the land to break into pieces and separate

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In one type of plant, orange petals (O) are dominant over yellow petals (o) and tall stems (T) are dominant over short stems (t)
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Answer No 1:

The set up of the punnet square is shown in the attached diagram. As the alleles assort independently hence the gametes formed will be OT,Ot,OT,Ot and OT,Ot,oT,ot. These will be the outcomes of the possible gametes formed. When these gametes are cross bred, the results are shown in the diagram attached.

Answer No 2:

The outcomes of each possible genotype are:

OOTT = 2/16

OOTt = 4/16

OOtt = 2/16

Oott = 2/16

OoTT = 2/16

OoTt = 4/16

Answer No 3:

The likelihood of each possible offspring phenotype is:

Orange petals with tall stem  and orange petals  with small stems present in ratio 12:4 i.e. 3:1.

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The first nine weeks of development about 11 week total a developing human is referred to as an embryo from nine weeks until tim
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Answer:

fetus

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During the gestational period the developing human is referred to as fetus.

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6. Factors that increase the amount of mutations<br>are called ....​
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Acquired mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.

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Where do humans fit in the food web?
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We are omnivores

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