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3 years ago

Because of __________ between moving parts of a bicycle, some of the work you do changes to energy.

Biology

1 answer:

swat323 years ago

5 0

Answer:

friction

Explanation:

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_____ is a T-cell-specific adhesion molecule expressed before the expression of a functional T-cell receptor while the thymocyte

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Answer:

CD2

Explanation:

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3 years ago

Which of statements is/are true for sexual reproduction in plants?

Yuliya22 [10]

4 fertilization can occur only after pollination

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3 years ago

Describe the experiment, to show that light intensity, water, chlorophyll, and cabondioxide are needed for photosynthesis

lisov135 [29]

Answer:

Is light needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in an opaque box and 1 part in a transparent box (one with light and one without)

3. Test for starch (BEWI)

B. Is carbon dioxide needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in a box with CO2 absorber and 1 part in box with a CO2 provider

3. Test for starch (BEWI)

C. Is chlorophyll needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. Use a variegated leaf

3. Test for starch (BEWI)

B E W I

1. Put leaf in boiling water to destroy the cell membrane and denature enzymes

2. Ethanol in a hot water bath to remove chlorophyll

3. Warm water to soften the leaf

4. Add drops of iodine solution

Explanation:

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3 years ago

Listen

Inessa05 [86]

Answer:

A scientist's response to the increase in food poisoning sick patients should be examining the type and source within the foods consumed.

Explanation:

Food poisoning involves the effects that decomposed or contaminated food can have on a group of people who eat it, and can cause illness in all or most individuals.

Although patients' symptoms should be treated and preventive education provided, the best course of action for a scientist is to investigate the cause.

The response of a scientist to the increase in food poisoning cases is to determine the type and source of food, as well as the nature of the alteration it has -decomposition, contamination, bacteria- in order to eliminate the source and avoid new cases.

The other options may be valid in the face of the appearance of food poisoning cases, but they are not the best procedure with which a scientist would respond.

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3 years ago

The duct system atop each testis where sperm mature is the __________.

statuscvo [17]

In the duct system the atop testis where sperm mature from is known as the epididymis

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