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anastassius [24]
3 years ago
7

Question 1

Biology
1 answer:
adelina 88 [10]3 years ago
5 0

Answer:

the answer is A

Explanation:

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__________ forms a liquid cushion for cns structures. __________ forms a liquid cushion for cns structures. the pia mater cerebr
atroni [7]
Cerebrospinal Fluid

Produced by the choroid plexuses of the brain, the cerebral spinal fluid is contained in the subarachnoid cavity and spinal canal. It is reabsorbed by the arachnoid granulations.
Besides acting as a cushion for the CNS, the cerebral spinal fluid plays a critical part in the immunology of the central nervous system, blood flow in the CNS and autoregulation.

6 0
3 years ago
Water is solute True or false
Xelga [282]

Answer:

true but  in moist air

Explanation:

8 0
3 years ago
Read 2 more answers
A 10-7 is performed on a culture of bacteria in order to perform viable plate counts. From the dilution, *0.1 mL* of solution is
marishachu [46]

Answer:

66 * 10^8 CFU/mL

Explanation:

Given -

a) Number of colonies of bacteria is equal to 66

b) Total volume of the solution is equal to 0.1 mL

c) Dilution factor is equal to 10^{-7}

As we know that

CFU/mL = \frac{N * DF}{V}

Where N is the number of bacterial colonies, DF is the dilution factor and V is the volume

Substituting the given values in above equation, we get -

CFU/mL = \frac{66* 10^7}{0.1} \\= 66*10^8

5 0
3 years ago
In the 1950s, when Watson and Crick were working on their model of DNA, which concepts were well accepted by the scientific comm
julia-pushkina [17]

Answer:

Option (1), (2) and (3).

Explanation:

DNA is the genetic material of all the living organisms present on earth. The DNA contains the nitrogenous bases, pentose sugar and the phosphate group. DNA strands runs in the opposite direction and shows polarity.  

Watson and Crick explain the structure of DNA based on the X ray diffraction produced by Rosalind. According to the structure, chromosomes are present in the nucleus and contains the DNA and wrapped around the proteins. The genes is considered as the functional segment of DNA.

Thus, the correct answer is option (1), (2) and (3).

6 0
3 years ago
Match the level of organization to the correct description.
noname [10]

Answer:

Organism - Individual living thing

Community - All of the different populations that live and interact in an area.

Population - Group of similar organisms.

Ecosystem - Community of organisms and its abioitic environment.

Biosphere - All of the ecosystems.

Hope this helps you

3 0
3 years ago
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