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Naddika [18.5K]
3 years ago
15

What effect do calcium ions have on the water in ecosystems?

Biology
2 answers:
Misha Larkins [42]3 years ago
7 0
I believe it is C.They add to its hardness.
nignag [31]3 years ago
7 0

Answer:

They add to its hardness (Apex)

Explanation:

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Rainbow [258]
The answer is D
I hoped this helped
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3 years ago
Tascha is on a medication that increases the pH of the stomach and makes it alkaline. What is the effect of this medication?
Yakvenalex [24]
It helps to calm a stomach, such as pepto bismol
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4 years ago
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Trisomy 21 can be caused by nondisjunction of chromosome 21, or by inheriting a Robertsonian fusion of chromosome 21 attached to
OLga [1]

Answer:

6 in total; 3 viable and 3 non-viable

Explanation:

Robertsonian translocation is one of the types of structural alteration in chromosomes, in other words, a rearrangement between chromosomes, which can occur between five pairs of acrocentric chromosomes (chromosomes with the centromere close to the end of one of the "arms"): 13, 14, 15, 21 and 22.

An individual who has Robertson's translocation between chromosomes 14 and 21 generally has only 45 chromosomes.

In addition, a carrier of this type of translocation can theoretically produce 6 types of gametes, however 3 of them are not viable.

As for the three remaining gametes: One is normal, and among the other two, one is balanced and the last is unbalanced.

So, theoretically, when combining a normal gamete, the probability of a child with down syndrome being born through these conditions is 1/3 (considering that the probability of producing a certain type of gamete is equal for the three types).

3 0
3 years ago
Gypsy moths kill trees by
denis23 [38]

Answer:

The correct answer is - destroying their leaves.

Explanation:

Gypsy moths are the most important moth species as their caterpillar defoliate the leaves of the trees, shrubs, and other plants and ultimately kills them.

These moths destroy most of the leaves or separate the leaves from the trees. These moths lay their egg on the leaves of the trees and plants and their caterpillar eat these leaves for food and nutrition.

3 0
3 years ago
What biological macromolecule is made up of monomers like the one shown below?
Serggg [28]
The biological macro molecule is CARBOHYDRATE.
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Carbohydrate are the major source of energy in the living cells.
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3 years ago
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