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Mkey [24]
3 years ago
7

Which of these statements are true about scientific theories and hypotheses?

Biology
2 answers:
astra-53 [7]3 years ago
8 0

The answer is "A hypothesis is tentative statement" and "A theory has a strong predictive power."

Fudgin [204]3 years ago
7 0

The answer is A hypothesis is tentative statement and A theory has a strong predictive power.

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Why is it important to center the object you want to look at in your field of view before changing to a higher magnification obj
Lesechka [4]

Answer:

B. So you can always see the entire object at the higher magnification

Explanation:

A microscope is used to view objects smaller than the naked or unaided eyes can see. The objective lens, in conjunction with the occular or eye lens, is used to achieve this purpose. The objective lens are of different magnifications as follows: 10X, 40X, 100X etc.

However, as the magnification increases i.e. higher objective, the object in the field of view becomes smaller and less focused. Hence, the object in the field of view must first be centered at a lower magnification/objective lens before changing to a higher one in order for the entire object to be seen at a higher magnification.

5 0
3 years ago
What is the key difference among the 20 amino acids that are used to make proteins?
Ray Of Light [21]

Answer:

Attached R side groups

Explanation:

The proteins are one of the important biomolecules which are directly coded by the genetic material of an organism.

The proteins are composed of the amino acids which possess, an amine group, a carboxylic group and an attached side group called the R group.

It is the R group of an amino acid which determines whether the amino acid will a polar or a non-polar amino acid molecule thus it determines the properties of the amino acid in terms of chemical properties. The R side group are involved in the formation of bonds with the substrate of the environment and the tertiary structure of the proteins.

Thus, the presence of different R group is the key difference in 20 amino acids.

4 0
3 years ago
Read 2 more answers
The nucleic acid of a virus is made up of which of the following
My name is Ann [436]
Is made up of which of the following is both dna and rna
7 0
3 years ago
Identify the parts of the nervous system.<br>A._____<br>B._____​
katrin [286]

Answer:

It is the Central nervous system and the Peripheral nervous system

Explanation:

The central is made up of the brain and spinal cord. The peripheral is made up of nerves that branch off from the spinal cord and extend to all parts of the body

4 0
3 years ago
Why is red light the best for photosynthesis?
Kisachek [45]

Answer:

The primary reasons why LED fixtures emit a lot of red are 1) red LEDs are among the most efficient at converting electricity into photosynthetic photons, 2) chlorophyll strongly absorbs red light, thus it is effective at photosynthesis, and 3) red LEDs are relatively inexpensive

5 0
2 years ago
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