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IRINA_888 [86]
3 years ago
11

Which phylum to not have an internal or external skeleton or shell?

Biology
1 answer:
loris [4]3 years ago
8 0

Explanation:

What is the name of this website

or the book?

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Carbon dioxide Direct effect on orca
Afina-wow [57]

Answer:

How does carbon dioxide affect orca?

Image result for Carbon dioxide Direct effect on orca

Once those waters return to the ocean floor, they can take with them large amounts of carbon dioxide, sequestering the gas away for hundreds or thousands of years

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3 0
3 years ago
What parts of a nucleotide make up the backbone of a nucleic acid? pairs of nitrogen bases pairs of sugars sugar and nitrogen ba
mixer [17]
A DNA molecule consists of two strands of nucleotides twisted together to form a double helix. The sugar-phosphate backbone is found on the outside of this helix and the bases are found braching towards the middle. Hydrogen bonds join the thenitrogenous bases and hold the two strands together.

Therefore your answer is sugar and phosphate.
4 0
3 years ago
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What is the purpose of control in an experiment?
Delicious77 [7]

Answer:

An experimental control is used in scientific experiments to minimize the effect of variables which are not the interest of the study. The control can be an object, population, or any other variable which a scientist would like to “control.”.

Explanation:

6 0
4 years ago
If people use an ecosystem without damaging it then what they are doing is__ ?
soldi70 [24.7K]

Answer:

Sustainable use of the environment

Explanation:

Be it the ecosystem or the food you eat, if you just take up whatever you need instead of over exploiting the resources, another life can benefit from it. The relationship we need to form with our environment should be mutualism or commensalism but not parasitism.

4 0
2 years ago
Are the percentages calculated in a Punnett Square guaranteed to happen to those parents' children?
dimaraw [331]

Answer:

A. No, they are predictions of the probability of certain traits getting passed on.

Explanation:

5 0
3 years ago
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