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Nata [24]
3 years ago
13

What are two ways bacteria and protists can be helpful to people?

Biology
1 answer:
kotegsom [21]3 years ago
7 0

Bacteria: They are in your intestines to break down food and produce vitamin k your body needs.

Protist: Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis.

Hope this helps in some way !
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Design an experiment where you would determine how quickly lactaid works to break down milk sugar
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Gather 11 Cups And then fill each cup with 5 ounces of whole milk, next is take the first cup to add a known quantity of lactaid. As A Control take another cup and do not add any lactaid. After 1 Minute, pour a known quantity of benedicts into cups of milk. Record the colour ( blue is the least amount of glucose progressing to green, then yellow, orange, red and brick/red brown). Take another cup of milk and then add the lactaid and wait for 5 minutes... Next is add the benedicts. Record the color, repeat steps 7 - 10 adding 5 minute each time until there are no cups left ( 15 minutes, 20,25,30,35,40,45) .

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6 0
2 years ago
What is it called when a living thing copies the appearance of another living thing as a mean of protection?
anygoal [31]

Answer:

It is called mimicry when a living thing copies the appearance of another living thing as a means of protection.

Explanation:

Mimicry is used primarily by living things as a means for protection and to decrease the chances of the living thing being killed. For example, a frog that is prey to a toad could have bright colors (bright color frogs are often poisonous) that don't mean anything to the frog and it's species, but to the toad, the frog is poisonous and should not be eaten, so the toad does not eat the frog because it is brightly colored.

Without mimicry, the frog would have been eaten because it wouldn't have had looked like a poisonous frog, or something that the toad would avoid.

4 0
3 years ago
1. Who was Alfred Wegener?
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Answer:

Alfred Lothar Wegener was a German polar researcher, geophysicist and meteorologist. During his lifetime he was primarily known for his achievements in meteorology and as a pioneer of polar research.

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