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Gnom [1K]
3 years ago
13

Which statement is true about chromosomes?

Biology
1 answer:
suter [353]3 years ago
4 0

Answer:

idk

Explanation:

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PLEASE HELP WILL MARK BRAINLEST
STatiana [176]

Answer: genetics and mutation generate some of the variety that natural selection acts on

Explanation:

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3 years ago
wo events in space are described below. Event 1: The moon travels between the sun and Earth and prevents the sunlight from reach
Charra [1.4K]
The answer is Event 1. A solar eclipse occurs when the moon gets between the sun and Earth and blocks the sunlight from reaching Earth's surface during daytime, thus casting a shadow over Earth. A lunar eclipse as represented by Event 2 happens when the moon passes into the shadow of Earth at night and we can see the moon darken.
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What is microgravity, and what causes it?
fgiga [73]

Answer:

The answer is because they are in free fall. In a vacuum, gravity causes all objects to fall at the same rate. The mass of the object does not matter. If a person drops a hammer and a feather, air will make the feather fall more slowly. But if there were no air, they would fall at the same acceleration.

Explanation:

8 0
3 years ago
Over 500 million years ago what was British Columbia ??
ELEN [110]

Answer:

500-million-year-old fossil found in BC is ancient ancestor of spiders and scorpions. Palaeontologists in British Columbia have found a fossil of the oldest known ancestor of scorpions and spiders.

8 0
2 years ago
You are conducting an experiment to determine what concentration of disinfectant is most effective in killing bacteria. In this
butalik [34]

Answer:

C. Independent variable

Explanation:

The independent variable in an experiment is the variable that the experimenter manipulates or changes in order to effect a measurable response in the dependent variable.

According to this question, an experiment is conducted to determine what concentration of disinfectant is most effective in killing bacteria. The independent variable is the CONCENTRATION OF DISINFECTANT because it is the variable being changed or manipulated.

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3 years ago
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