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3 years ago

What are the difference between a variable and a control

1 answer:

4 0

A control is the normal behavior you are testing the variable against. There are two types of variables. The independent variable is what you change to test what the dependent variable is, which is the variable that changes due to the independent variable, and what you generally record your data over.

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What can be used to measure the rate of photosynthesis

zloy xaker [14]

Answer:thus, there are various methods to measure photosynthesis:

Uptake of CO2 by plants: Since CO2 is needed for photosynthesis, measuring how much of it is taken up by the plants gives us information on how much of photosynthesis is happening.

Release of O2: The amount of O2 produced during photosynthesis can be measured.

Explanation:

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3 years ago

Which is NOT true of cancer cells? A) Cancer cells fail to undergo apoptosis. B) Cancer cells exit the cell cycle and enter the

FinnZ [79.3K]

D just took the test and got it right

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3 years ago

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The microorganisms that inhabit the sludge at the bottom of a lake would live in which microbiota zone

Margaret [11]

Answer:

Explanation:

In a lake, oxygenic phototrophs produce new organic material as well as O₂. If primary production rates are very high, the resultant excessive organic matter production can lead to bottom-water O₂ depletion from respiration and the development of anoxic conditions. This in turn stimulates anaerobic metabolisms, including anaerobic respirations and fermentations.

Organic matter that is not consumed in surface layers sinks to the depths and is decomposed by anaerobes.

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3 years ago

Match each part of the brain with the correct label. 2

raketka [301]

Answer:

For the numbers on the brain

1. Forebrain: Telencephalon

2. Forebrain: Diencephalon

3. Hindbrain

4. Midbrain

Explanation: correct

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2 years ago

Silent or missense mutations are small-scale mutations that occur when

Andrei [34K]

Answer:

c. a single nucleotide is substituted with no effect

on the amino acid sequence.

Explanation:

silent mutations occur when the change of the dna

sequence within protein - coding portion of a gene

does not affect the sequence of amino acids that

make up the protein. this change typically takes

place at the third position of the codon also known

as the wobble position.

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2 years ago