3 years ago

What are the functions of each layer of the atmosphere?

1 answer:

6 0

The atmosphere surrounds Earth and protects us by blocking out dangerous rays from the sun. The atmosphere is a mixture of gases that becomes thinner until it gradually reaches

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Plz help this is past due

notsponge [240]

The domain archaea are able to tolerate extreme environments.

Answer is D

5 0

3 years ago

Read 2 more answers

You dilute an unknown sample of bacteria to 1 x 10-6 and plate out 10 onto a Petri dish. The next day you count 64 colonies. The

Sveta_85 [38]

Answer:

Explanation:

The correct answer would be 6.4 x $10^6$ cells/ul.

For 1 x 10-6 dilution, the plating factor is $10^6$ . To find the number of bacteria in the original sample, the plating factor is multiplied by the colony count per ul.

<em>Number of viable bacteria = plating factor x colony count/ul</em>

Since 10 ul gives 64 colonies. 1 ul will give:

64/10 = 6.4 colonies.

Therefore, the viable bacteria in the original sample = 6.4 x $10^6$ cells/ul

The correct option is b.

3 0

2 years ago

10. What processes found at hot spots will help form the following rocks? (4 points)

SSSSS [86.1K]

Answer:

metamorphic rock

Explanation:

metamorphic rock simply means that the rocks have been geophysically altered. heat is always a primary source for alteratino of rock so the heat ofmolten rock generated by hot spots can easily cause an abundance of metamorphic rocks within the system

8 0

3 years ago

How many total carbonate ions would be present in the formula for aluminum carbonate?

lesya [120]

Answer:

its d

Explanation:

7 0

3 years ago

What type of country is described by higher birth rates, higher infant mortality rates, and lower average income?

natulia [17]

The answer is, "B", "Developing country".