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Likurg_2 [28]
3 years ago
14

What happens during gas exchange?

Biology
2 answers:
Misha Larkins [42]3 years ago
7 0

Red blood cells exchange carbon dioxide for oxygen

finlep [7]3 years ago
6 0
The answer would be letter a
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Mendel knew that the variations in the offspring generations resulted from his experiments because he
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Mendel was able to attribute the variation observed in the offspring of his experiment to the controlled fertilization process.

Mendel was able to control pollination and, thus, the fertilization process in the pea plants used for his experiment.

Mendel was able to effectively predict the outcome with self-pollination or cross-pollination with different results coming from each. Thus, he logically concluded that the variation observed in the offspring of his crosses is due to the fact that he controlled the fertilization process.

More on Mendel's experiments can be found here: brainly.com/question/3186121?referrer=searchResults

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2 years ago
Why do plant cells need cell walls? What is it made up of?​
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The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. ... Plant cell walls are primarily made of cellulose, which is the most abundant macromolecule on Earth. Cellulose fibers are long, linear polymers of hundreds of glucose molecules.

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What does it mean for Community A to have a greater species richness than Community B? Choose 1 answer: Choose 1 answer: (Choice
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(Choice A) A community A contains more resources per individual then Community B
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3 years ago
Jason has five equally massed lead fishing weights, each weighing 250 grams. What is the total mass of the five lead fishing wei
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1250 g=1.25 Kg

Explanation:

We are given that Jason has five fishes of equally massed lead fish weights.

Weigh of each fish =250 grams

We have to find the value of total mass of the five lead fishing weights

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In order to find the total mass we will use unitary method

Total mass is obtained by multiplying the total number of fishes with weight of one fish

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Total mass of five fishes=1250 g

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Then 1250 g=\frac{1250}{1000}=1.25 Kg

Hence, total mass of five lead fishing weights=1250 g=1.25 Kg

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2 years ago
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