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VashaNatasha [74]
2 years ago
13

SIMPLE SEVENTH GRADE SCIENCE PROBLEM. GIVING BRAINLIEST.

Biology
1 answer:
sashaice [31]2 years ago
8 0
Fish and bird are biotic and the bird would hurt the fish depending on the species of birds since some birds are carnivores.
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If two intermediate-colored chickens together produced 100 chicks, how many would you expect to be black?
sergiy2304 [10]

Answer: 25 of the chicks will be black

Explanation: Since the chickens are intermediate in colour, that is they are not black, they are heterozygous. Let B represent the allele for black colour and B represent the allele for blue colour, therefore the genotype of a chicken with an intermediate colour is Bb. A cross between two Bb chicken will produce 1 BB, 2 Bb and 1 bb chicks. 1 BB will manifest outwardly as black, 2Bb will manifest outwardly as intermediate colored while 1 bb will manifest outwardly as blue colored chicks.

Since one out of four chicks are black colored, if the two chicken produced 100 chicks, the number of chicks that will be black is 1/4 x 100 = 25. Therefore, 25 chicks out of 100 will be black.

See the attached punnet square for more information

7 0
3 years ago
If a person didn’t have red cones, how would their perception of color change?
loris [4]

Answer:

They would be color blind.

Explanation:

For example, if the red cone is missing you will be unable to see colors containing red as clearly. There are several different types of color blindness. Dichromatism is when one of the cones is missing.

4 0
3 years ago
Read 2 more answers
ancestors of giraffes with shorter necks could not reach branches high up in trees for food. this led to selection for longer-ne
hichkok12 [17]

With shorter necks, giraffe ancestors could not reach food-containing branches on tall trees. This resulted in the directional selection of giraffes with longer necks.

 

<h3>Why is choosing a direction necessary? </h3>

It nearly appears obvious that the giraffe's long neck developed as a result of a lack of food in the lower branches of trees. The giraffe has a significant advantage because it is taller than any other mammal and can feed where few others can. 

When compared to modern giraffes, the giraffe's ancient predecessors had a shorter neck. The plants that were lying at a higher level were inaccessible to them. Giraffe phenotypes have changed in various ways, and now have long necks to reach vegetation that is higher up. The extreme form is chosen above other features in directional selection. It was decided to choose the long-necked giraffe over the short-necked.

 

To know more about direction selection for longer necked giraffes visit:

brainly.com/question/3738222

#SPJ4

7 0
1 year ago
What happens if you take more then 3 sleeping pills at once?<br>​
Mariana [72]

Answer:

It depends on the mg of pill, weight of your body and your body tolerance level.

3 0
2 years ago
Shivering warms the body by causing involuntary muscle contractions, which two body systems are working together to help you mai
Elodia [21]
Circulatory and muscle system
4 0
2 years ago
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