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Paraphin [41]
3 years ago
12

_____ can cause markedly shorter life spans, along with chronic respiratory problems in humans and animals.

Biology
1 answer:
azamat3 years ago
6 0
The correct answer for this question is this one: "b. Air pollution"Air pollution can cause markedly shorter life spans, along with chronic respiratory problems in humans and animals.
There exists the same question from other source with the following choices:
<span>a. Water pollution
b. Air pollution
c. Global warming
d. Deforestation
e. Acid rain</span>
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The button-like structure that holds homologous chromosomes together at their middles during cell division is called the
Volgvan

Answer:

CENTROMERE

Explanation:

The CENTROMERE is the primary constriction region where the identical DNA molecules are most tightly bonded to each other during mitosis and meiosis.

The typical chromosome in metaphase is composed of two sister chromatids joined by the centromere.

Surrounding the centromere, we can find the kinetochores. These are laminar proteinic structures forming a plate where the spindle and kinetochore fibers will join during chromatids separation.

The position of the centromere defines the chromosomes as acrocentric, metacentric, or submetacentric.

7 0
2 years ago
(1) In order to move your muscles need to_____(blank)
erastova [34]

Answer:

(1) In order to move your muscles need to ligaments.

(2) Joint holds bones together.

(3) Tendon connects bones to muscles.

Explanation:

Ligaments are strong bands of tissue which are responsible for the movement of bones in the body. Joints are the place or point where two bones are attached. Tendons are responsible for connecting muscles of the body to the bones.

5 0
3 years ago
Cherry cells have 32 chromosomes. how many chromosomes do each of the daughter cells produced by mitosis have?
romanna [79]
They have the same 32 they are diploid. Meiosis makes haploid cells so there would only be 16.
5 0
3 years ago
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16. Explain why pollution caused the shift in the phenotypes of the peppered moth during the Industrial Revolution. (2pts)
andrey2020 [161]

Answer/Explanation:

Pollution during the industrial revolution caused trees to become covered with soot, making them darker. This dark appearance meant that the peppered moth, which usually had a light colour, was clearly visible against the tree. This meant it was easier for predators to identify. As a result, their numbers decreased because they were an easier target.

However, there was also a rarer form of the moth, which was dark in colour. These were initially very rare. However, because of the change in the tree colour owing to the industrial revolution, these moths were better suited to the environment, as they were more camouflaged against the dark tree. This meant it was easier for them to avoid predators, and so they were more likely to survive to reproductive age and pass on the genes that produce the dark colour.  This meant that the dark moths increased in number.

4 0
3 years ago
Why dis gregor mendel study pea plant
exis [7]
<span>Gregor Mendel conducted hybridization experiments on around 29,000 pea plants. Peas were an ideal choice for Mendel to use because they had easily observable traits there were 7 of which he could manipulate them.</span> He studied pea plants <span>because the are self pollinating , they grow fast , and they have many traits.</span>
4 0
3 years ago
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