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3 years ago

how the collapse of the forest ecosystem on easter island affected the human population that lived there?

Biology

1 answer:

8_murik_8 [283]3 years ago

4 0

Answer:

Essentially, the population that lived on Easter Island was trapped and eventually died off.

Explanation:

The people on Easter Island started creating the famous statues that I'm sure everyone knows about today, to help protect them from possible invaders. Once the people started settling in, they were provided with a number of natural resources and supplies, which unfortunately they had taken these resources for granted. Since they had been using all of the island's resources and using the many trees there for their civilization, they had no means of leaving the island once the last trees were gone. They were pretty much trapped on a dead island due to them causing the island to go through deforestation.

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Which of the following is not a structure used for cellular movement?

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Vacuole is not a structure used for cellular movement

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How does making nectar help flowers become pollinated

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Nectar attracts bees and other pollinators to the flowers and then the pollen gets stuck to the pollinator. Once the pollinator goes to a different flower, the pollen that was originally on the pollinator goes onto the present flower. That is how nectar helps flowers become pollinated

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3 years ago

A scientist wants to study the enzymes of the citric acid cycle in eukaryotic cells. what part of the cell would she use as a so

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4 years ago

Considering the experimental design, which claim is best supported using the data?

VLD [36.1K]

Answer:

C low competition for glucose

Explanation:

From the given answer choices and information,

It cannot be A since there is no visual disease or any indication of disease in the experiment

Cannot be B, since space would not be an issue since it clearly hit 111 on day 3

and cannot be D since there is no indication of a change in temperature.

However, we know Petri Dishes have nutrients to stimulate cell growth, and those resources are not unlimited therefore we can only attest that a large portion of the nutrients have been consumed and starved some of the cells thus causing a population decrease

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3 years ago

Which of the following does NOT characterize proteins?

8090 [49]

Answer:

The answer is C) They appear to be the molecular carriers of coded hereditary information.

Explanation:

Why NOT C) They appear to be the molecular carriers of coded hereditary information?

This is the job of the nucleic acids. It is composed of nucleotides which are the basic units of DNA and RNA. They carry genetic information about a certain organism.

<h3 /><h3>True of proteins:</h3>

A) They may be denatured or coagulated by heat or acidity.

Denaturation is the destruction of the protein's secondary and/or tertiary structures. The primary structure is not disrupted due to the tough peptide bonds and can only be broken down by acid. For heat denaturation, hydrogen bonds are destroyed, as in cooking of egg whites and medical equipment sterilization.

B) They have both functional and structural roles in the body.

There are many kinds of proteins that have functional and structural roles like hormones (FSH, LH), antibodies (IgA, IgM), enzymes (lipase, amylase), for storage/transport (hemoglobin, ferritin), and locomotion (actin, troponin).

D) Their function depends on their three-dimensional shape.

Just like hemoglobin, it's quaternary structure can carry 4 molecules of iron in one go. Enzymes are shaped accordingly to fit a specific substrate (lock-and-key model)

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4 years ago