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julsineya [31]
3 years ago
11

What are rickettsia and why are they called by some " masters of reductive evolution"?

Biology
1 answer:
earnstyle [38]3 years ago
5 0
I rerally don't know help me
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Which Form of matter posseses The main physical properties of viscosity,surface tension, and bouyancy?
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Name the physical properties that many ionic compounds share
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1 - They all are solids due to the strong electrostatic force 
<span>2 - They also have high m.p and b.p. </span>
<span>3 - It conduct electricity in molten state or in aqueous solutions </span>
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3 years ago
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It is said that the protoplasm cannat be analysed chemically.Why?
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It couldn't be analysed chemically because it's chemical composition is to complex. It would be hard for us to analyse them because once it has been removed from the organism, it ends as protoplasm only.
8 0
3 years ago
Which is the reproductive method of prokaryotes?
Verizon [17]

Answer:

Prokaryotic cells reproduce by a process that is called binary fission.

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3 years ago
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Calculate the molarity of 0.75 L of a solution containing 0.83 g of dissolved KCI. A 0.015 M B 0.75 M C 1.1 M D 6.2​
marissa [1.9K]

Answer:

A 0.015M

Explanation:

Molarity, which refers to the molar concentration of a solution, can be calculated using the formula:

Molarity (M) = mole (n) / volume (L)

Based on the information provided in this question, the solution contains 0.83 g of dissolved KCI.

We can calculate the number of moles of KCl in the solution by using the formula:

Mole = mass ÷ molar mass

Where atomic mass of; K = 39, Cl = 35.5

Molar Mass of KCl = 39 + 35.5

= 74.5g/mol.

Mole = 0.83g/74.5g/mol.

mole = 0.01114

Approximately, n = 0.011mol

Hence, molarity = 0.011mol/0.75L

Molarity = 0.0146

Molarity = 0.015M

8 0
3 years ago
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