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Lera25 [3.4K]
3 years ago
15

When measuring for pH, you are measuring for the presence of these ions?

Biology
1 answer:
Mumz [18]3 years ago
6 0

Answer:

Hydrogen ions

Explanation: pH is the concentration of hydrogen ions (H+) in a given solution. A pH of 1 means there are a lot of hydrogen ions and a pH of 14 means there is a very small concentration if them.

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Which term means blue discoloration of the skin caused by a lack of adequate oxygen?
vitfil [10]
The term for blue skin caused by lack of oxygen is cyanosis. One is said to be cyanotic when presenting with this discoloration.
7 0
3 years ago
Sympathetic nervous system vs parasympathetic nervous system
AveGali [126]

Answer:

Differences between Sympathetic and Parasympathetic

1. Anatomical: The location of preganglionic neurons of the autonomic ganglia and the extension of preganglionic and postganglionic fibers are different in these two systems;

2. Pharmacological: In the Sympathetic system we have the presence of Cholinergic fibers (Ach) and in the Parasympathetic system we have the presence of Noradrenergic fibers (NE);  

3. Physiological: They act antagonistically, they rarely work harmoniously synergistically in coordinating visceral activity (balance)

7 0
3 years ago
Which of the following organisms has the highest reproductive potential? A) dogs. B) bacteria . C) elephants. D) humans.
balandron [24]
B) Bacteria has the highest reproductive potential 

3 0
3 years ago
Read 2 more answers
Dark skin ( a result of increased melanin production in equatorial populations), is likely a response to ultraviolet radiation b
AlladinOne [14]

Answer: Skin cancer

Explanation:

Melanin is a pigment derived from an amino called acid tyrosine. The most common form of melanin is called eumelanin, which is a polymer of dihydroxyindole carboxylic acids and their reduced forms.<u> When a person is exposed to the ultraviolet light (UV) from the sun, the melanocytes will produce eumelanin to prevent the skin from burning and damage to the cell nuclei (where DNA is found)</u> of the epidermis. This melanin production causes the skin to darken. The eumelanin in the skin then acts as a natural sunscreen by blocking the damaging effects of sunlight. So, skin darkens when exposed UV light, thus providing greater protection when needed by producing more eumelanin, but it also becomes more likely to develop melanoma, which is a type of skin cancer. This is because UV rays damage the DNA of skin cells. <u>The DNA (deoxyribonucleic acid) is the genetic material that has the instructios to the growth and functioning</u> of an organisms). Skin cancers begin when eumelanin protection is not sufficient and this damage affects the DNA of the genes that control the growth of skin cells. <u>This results in a tumor, which is the uncontrolled growth of cells </u>(in this case, skin cells) because there will be a mutation in DNA that affects the function of the cells.

8 0
3 years ago
What usually happens to the host’s DNA during the lytic cycle?
QveST [7]

Answer:

The correct answer is -

A.It is destroyed.

Explanation:

The lytic cycle is considered as one of the two reproductive cycles that virus use for its reproduction (the other cycle is the lysogenic cycle).

This cycle results in the destruction of the host cell.

Bacteriophages (virus that infects bacteria)  use this cycle and referred as virulent phages.

There are basically five steps in this cycle -

Attachment of virus with the host cell membrane, penetration of the genome, which is followed by biosynthesis using host machinery, assembly of virus particles, and finally release, causing host cell destruction.

Thus, option A is the right answer.

6 0
3 years ago
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