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OleMash [197]
3 years ago
12

Explain how ostriches evolved to survive in their environment.

Biology
1 answer:
AnnyKZ [126]3 years ago
6 0

Answer:

Some scientists believe that there were huge fires and the skies were dark and full of pollution due to a meteor exploding and killing off the dinosaurs, and if it's true that this occurred, the Ostrich evolved to be a land animal due to it being too dangerous in the air for them. The long neck may have developed to help them get food that was higher up which is the same speculation for the Giraffe. To stay on land they had to be stronger, bigger, and faster than they were in flight.

Explanation:

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4/7 of 28 pleasle hhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeeellllllllllllllllllppppppppppppppppppppppppsssssssssssssssssssssssssssssss
eduard

Answer:

16

Explanation:

4/7*28=16

6 0
3 years ago
In this activity, you will explore how DNA microarrays are being used as a tool for studying-and possibly treating--cancer 1 2 3
sineoko [7]

Microarray data attached

Answer:

B, D, E are consistent with the data in the microarray

Explanation:

A) False, if you look at the microarray graph, Gene K is red on the right side of the graph (where patients in group II are) and generally more blue on the left side where group I patients are, meaning it is less expressed

B) This is true, look for example at gene F, individual 3 expresses it strongly, whereas individuals 6 and 7 are quite low.

C) No - microarray data looks at the expression of genes, not the genes themselves.

D) Yes, you can see that generally, genes B-Q are highly expressed in group II patients but not group I. In contrast, genes F-U are not expressed in group II but more expressed in group I.

E) Yes, although the data is not always consistent, there are clear patterns in group II patients not present in group I.

4 0
3 years ago
The phases of the moon are caused by
JulijaS [17]

<u>The lunar phases are produced as a result of the change of the relative positions of the Earth, the Moon and the Sun</u>.

<u>The part of the lunar surface illuminated by the Sun that we can see from the Earth</u>, <u><em>is changing throughout a cycle that is repeated periodically every 29 days, 12 hours, 43 minutes and 12 seconds</em></u>.

<em><u>The answer is</u></em>: <u>B) Earth that revolving around the sun and the sun's light being reflected off the moon.</u>

4 0
3 years ago
Read 2 more answers
A recessive mutant allele of an autosome gene in a species of mouse results in a shorted tail in males when homozygous. However,
antoniya [11.8K]

Answer:

sexual chromosome linked characteristics

Explanation:

The sexual crhomosomes are XX (for females) and XY (for males).

The Y chromosome have less genes than the x, because of this, some characteristics are expressed at males and not at females.

Males has only one copy of the gen, carried by the only X chromosome (in this case, the leght of the tail). Nevertheless the females have two copies of the gen, (short and long tail).

So, the fenotype resulting is a dominant characterisitic related to x chomosome (long tail).

5 0
3 years ago
In the food web below, the cow is an example of A. a heterotroph. B. a predator. C. an autotroph. D. a producer.
nekit [7.7K]

Answer:

A. a heterotroph.

Explanation:

it eats plants

4 0
3 years ago
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