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Alenkinab [10]
3 years ago
5

(please help ;-;) Which of the following situations shows an interaction involving all five of Earth's spheres?

Biology
2 answers:
Kipish [7]3 years ago
8 0
The answer to your question is C
Rus_ich [418]3 years ago
8 0

Answer: Option C

Explanation:

The five spheres of earth are Atmosphere, cryosphere, biosphere, lithosphere, hydrosphere.

The glacier(cryosphere) flowing( hydrosphere)by taking rocks( lithosphere)and trees( atmosphere and biosphere) with it self when it melts  is an example which includes all the five spheres of the earth.

Hence, the correct answer is option C

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As food travels through the digestive system it is exposed to a variety of pH levels. The stomach has a pH of 2 due to the prese
True [87]

Answer:

The answer is C. Pepsin becomes inactive as soon as it reaches small intestine.

Explanation:

Enzymes are pH specific. They once work at those specific values and if those are changed they either degrade or become inactive. The pH of stomach is acidic and that of the small intestine is basic. Therefore the enzymes will become inactive when it enters small intestine.

7 0
3 years ago
The following are the recombination frequencies for a set of genes found on the same chromosome: X-W 7% W-Y 10% X-Z 13% W-Z 20%
Vladimir [108]

Options have not been provided for the question. They are as follows:

What is the correct order for these genes using a linkage map analysis?  

A. Z-X-Y-W

B. X-W-Z-Y

C. W-X-Y-Z

D. Y-W-Z-X

E. Z-X-W-Y

F. Y-X-W-Z

Between which two genes is crossing over most likely to occur?

A. B and D

B.X and Z

C. X and W

D. X and Y

E. W and Z

F. Y and W

G.Y and Z

Answer:

Correct order for these genes using a linkage map analysis: E. Z-X-W-Y

Two genes between which the crossover is most likely to occur: G.Y and Z

Explanation:

According to linkage concept, recombination frequency between two genes = distance between two genes in cM

Here, smallest distance is between X and W ( 7cM ) so they are present next to each other. Distance between X and Y is 17cM and between W and Y is 10cM so W is present between X and Y. Distance between X and Z is 13 cM. Since on one side of X, W and Y are already present Z lies on the other side. So, the final gene order comes out to be, Z-X-W-Y.

According to the gene order, Y and Z genes are farthest from each other. Chances of crossover or recombination increases with increasing distance between genes. So, Y and Z have the highest probability to show crossing over.

5 0
3 years ago
Jack leaves his house and walks north for 30m. He turns left and walks west for 30m. He then turns left again and walks another
coldgirl [10]

Answer:

Jack's house

Explanation:

Point of reference is a point in a space that can be used to tell where other things are positioned. It is also known as the reference point. A simple way to put this is the starting point. As you can see in your example, Jack started from his home and is moving in directions depending on his house's location.

3 0
3 years ago
Why are human populations not limited by the carrying capacity of their ecosystems?
exis [7]

Answer:

humans use their knowledge to locate resources.

Explanation:

The carrying capacity can be defined as the maximum number of individuals in a population of a species that an ecosystem or region can support on the basis of availability of water, food, habitat and other needs necessary for survival. Sometimes, the population of the species increases exponentially exceeding the carrying capacity of an ecosystem when the resources available are surplus.  

The human populations are not limited by the carrying capacity of their ecosystem this is because of the fact human beings possess special intellectual and thinking abilities which make them capable of availing themselves resources. They posses knowledge which allows them to search, and find resources even from the earth extreme locations not suitable for survival.

brainiess plsssss

4 0
3 years ago
How are species introduced to new ecosystems?
Igoryamba
They start as single cell orginisms then they evolve from there. 

hope that helps

8 0
3 years ago
Read 2 more answers
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