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irina1246 [14]
3 years ago
10

A paramecium is an exsample of

Biology
1 answer:
trapecia [35]3 years ago
8 0

Paramecium is a genus of unicellular ciliates, commonly studied as a representative of the ciliate group. Paramecia are widespread in freshwater, brackish, and marine environments and are often very abundant in stagnant basins and ponds. hope it helps

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Pollen grains help scientist
inessss [21]

Answer:

true

Explanation:

Pollen grains help scientists identify plants and make assumptions on past climate conditions. understand tree growth and make assumptions on past climate conditions.

6 0
2 years ago
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Which question is testable?
Nuetrik [128]

The correct answer is: A. How does changing the amount of water affect the growth of corn?

While options B, C & D are not impossible to test, option A is the only question that can be tested using quantitative methods, such as statistical analysis. The question in option A states: "How does changing the amount of water affect the growth of corn?". This question is easily testable using scientific investigation, because controlled or measured amounts of water can be added to corn, and the consequent growth rate of corn can be easily measured and recorded. However, the questions in options B, C & D cannot be precisely measured using quantitative tools, since they aim to measure qualitative (subjective) factors, such as: ethics, happiness and disappointment.

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3 years ago
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Glaciers have caused erosion:
liq [111]

Answer:

A

Explanation:

They form in mountains and flow through mountain river valleys. Glaciers cause erosion by plucking and abrasion.

7 0
3 years ago
Where does the exchange of oxygen (from the air) with carbon dioxide (from the cells) take place?
Katen [24]

<u>Answer:</u>

The Answer is <em><u>Option D. </u></em>

<em>Exchange of respiratory gases, oxygen and carbon dioxide take place in the alveoli of the lungs. Oxygen which is inhaled from the atmosphere diffuses through the walls of the alveoli and reaches to the adjacent capillaries into the red blood cells.</em>

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8 0
2 years ago
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In what way are the humerus and the femur similar?
marta [7]

Answer:

D.

Both the femur and humerus bone have what's called 'spongy bone' inside them and hollow spaces full of yellow and red bone marrow. Additionally, both bones do not attach to the axial skeleton but rather attach to the pelvic or hip bones; while they are both strong bones, they are not made of only compact bone but are made of 'spongy bone' inside them. Lastly, they do not protect any organs but rather allow for movement. D, They both have hollow spaces filled with bone-generating cells, is the best answer in this case

Explanation:

5 0
3 years ago
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