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Contact [7]
3 years ago
8

Which structure contains the muscles that adjust the shape of the lens of the eye?

Biology
1 answer:
Tems11 [23]3 years ago
6 0
I believe it is the ciliary body.
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Many marine organisms depend on up welling to bring nutrients to the surface. How might El Nino affect a fisherman's way of life
svp [43]
During an El Nino, warm water gathers along the West coast of South America, so the nutrient rich water is no longer being upwelled. keeping in mind that cold water sinks and warm water rises, usually the warm water near coastal regions would not be full of nutrients compared to the cold water where the nutrients fall. therefore, more fish will be located or migrate to areas of this nutrient rich cold water instead. So, many fishermen would not have high yields of fish ultimately affecting their way of life and money. also a lot of these fish that remain at the surface would not be as healthy or nutrient rich.

hope that helps! :))

3 0
2 years ago
What are the chromosomes called when they look like Xs​
Marina86 [1]

Answer:

I think you're referring to the Metaphase...

Explanation:

During Cell Division (or, rather before!) the DNA needs to be replicated. This normally is done by DNA Polymerase, and results in two identical double strands (the "Sister Chromatids".

These chromatids are held together at the Centromere, which will be the heart of the "X"-shape. After that the DNA is packed into Chromosomes by winding it around proteins called Histones. If I remember correctly there are 5 different Histones.

This "Zipping Up" makes the chromosomes more visible.

As the two sister chromatids are still connected, the result is the X-shaped Metaphase Chromosome....

6 0
3 years ago
Carbon is rare in that it does NOT bond with any other elements.
sveta [45]

Answer:

False

Explanation:

-Carbon has 4 electrons in its outer shell

-It can achieve a full outer shell by forming Covalent Bonds

7 0
2 years ago
Question 1
gtnhenbr [62]

Answer: 1.chromosomes, 2. Histones, 3. prokaryotes have one chromosome, 4. A sugar phosphate backbone with nitogen bases in the middle. 5. Chromatin

Explanation: Chromatin

8 0
3 years ago
Ecologists often use modeling, instead of field studies, because it
ANEK [815]

Answer:

Answer is A. allow them to control all the variables involved.

Explanation:

Modelling in ecology means the use of constructed mathematical models for understanding of ecological processes and to predict or know how real it is for ecosystem to change.

Ecological modelling is useful in defining problems more precisely and clarity of concepts.

5 0
2 years ago
Read 2 more answers
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