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satela [25.4K]
2 years ago
11

Why are a plant’s stomata generally open during the day and closed at night?

Biology
2 answers:
joja [24]2 years ago
4 0

c.Stomata are generally open during the day to remove excess water from the planet and closed at night to keep oxygen from escaping.

trasher [3.6K]2 years ago
4 0

I believe the answer is D

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Which layer does temperature zone does most precipitation occur?
siniylev [52]

Answer:

troposphere

Explanation:

The troposphere is the temperature zone of the atmosphere where most precipitation occurs. It has a normal temperature of 0 degrees Celsius. This layer is where the majority of weather events take place. It is 10–15 kilometers thick above the Earth's surface.

5 0
3 years ago
An air mass that originates in the Pacific ocean, west of Brazil, is most likely
kykrilka [37]

An air mass that originates in the Pacific ocean, west of Brazil, is most likely WARM AND WET.

A. warm and wet

<u>Explanation:</u>

The pacific ocean has the tropical maritime air mass so it is warm and wet. they affect the United States originate over the Caribbean sea, Mexico, pacific and the western Brazil.

So the air masses in the pacific ocean, western Brazil are wet and warm.the air masses have the fairly uniform temperature and the moisture content in the horizontal direction.

Air masses are characterized by their temperature and the humidity properties. The air mass where the originate is based on the surface properties.

7 0
3 years ago
What is the concentration of a suspension that grew 89 colonies on a plate with a dilution of 1:100?
mafiozo [28]

Answer:

8900 CFU/mL

Explanation:

Colony Forming Units (CFU) is a value that indicates the degree of microbiological contamination of an environment. It expresses the relative number of microorganisms of a given taxon in a volume of one cubic meter of water.

UFC is the minimum number of separable cells on the surface, or inside, of a semi-solid agar medium that results in the development of a visible colony of the order of tens of millions of descending cells. The CFUs can be pairs, chains or clusters, as well as individual cells. Colony forming unit.

Calculation

Colonies * Dilution = CFU/mL

89          *  (100/ 1 mL) = CFU/mL

8900 CFU/mL

3 0
3 years ago
List several important provisions from the oceans.
Leto [7]

Answer:

the ocean provides several important resources to its inhabitants

Explanation:

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3 0
3 years ago
1. Which diagram best represents mitosis cell<br> division?
marusya05 [52]

Answer:

c

Explanation:

3 0
3 years ago
Read 2 more answers
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