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ipn [44]
1 year ago
8

The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of wate

r into and out of the cell in an aquatic environement. What condtions cause the contracile vacuole to fill with water? Your answer: The concentration of water is greater outside the cell than inside the cell. The concentration of water inside the cell is the same as the concentration outside the cell. The temperature of water in the vacuole is higher than the temperature of its environment.

Biology
1 answer:
yuradex [85]1 year ago
8 0
The concentration of water is greater outside the cell than inside the cell
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In this specimen of onion root cells, what is the amount of time, in minutes, spent in interphase
valkas [14]

Answer:

Approximately it will consume 55% of the total time in the interphase i.e. 800 minutes.

Explanation:

The time required in different phases are as follows:

It takes 800 minutes for interphase

It takes 400 minutes for prophase

It takes 120 minutes for metaphase

It takes 80 minutes for anaphase

It takes 40 minutes for telophase

Total -- 24 hours

From this it can be concluded that around 55% of the time spent in the interphase, whereas only 28% in the prophase, 8% time for metaphase, 6% Anaphase and 3% Telophase. This is all happens in the onion cell but in case of the human cell, prophase it takes about 15 min, in prometaphase it takes 15 mins, metaphase takes in about 20 min, Anaphase takes minimum of 3 min and telophase is about and cytokineses are about less then 10 mins.

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1 year ago
Most of the minerals within an ecosystem are recycled and returned to the environment by direct activities of organisms known as
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D. Decomposers return everything back to the environment
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A teacher brings 3 gallons of juice on a field trip. There are 36 students on the trip.
Lera25 [3.4K]
There are 384 fluid ounces in 3 gallons. The teacher does not have enough for each student to have 12 fluid ounces.

384÷12=32
 
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Fill in the blanks. Greenhouse gases absorb radiation from the sun and re-radiate it back toward the , which helps to maintain a
dsp73

Answer:

Greenhouse gases absorb radiation from the sun and re-radiate it back toward the <u>atmosphere,</u> which helps to maintain a normal range of <u>temperature</u> on Earth.

Greenhouse are glass house which are used to grow crops in regions exhibiting extreme cold temperatures and snow fall. The soil in these regions are frozen therefore, are not suitable for plant growth. These glass houses  trap the sunlight which is used by the plants for photosynthesis and growth. Some gases like methane, carbon dioxide,  carbon monoxide, sulphur and nitrogen dioxide are released into the atmosphere. These gases maintains the range of temperature of atmosphere.

8 0
2 years ago
Read 2 more answers
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