1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mr Goodwill [35]
2 years ago
13

A blood bank refused to accept blood from a potential donor who had just had his teeth cleaned by a dental hygienist. Why did th

ey refuse the blood
Biology
1 answer:
Zinaida [17]2 years ago
7 0

Answer:

High amounts of fluoride

Explanation:

Teeth cleaning agents can contaminate one's blood with fluoride, something that it is only healthy to accumulate a small amount of.

You might be interested in
Humans pump water out of the aquifers in the ground to use in their homes. How would this effect the land on top of the aquifer?
NeX [460]
When too much water is pumped out of an aquifer, you can make a sink hole above it, as there is now air/empty space where water used to be.
7 0
2 years ago
Will give 11 POINTS IF YOU ANSWER PLEASE
cestrela7 [59]

parents,animals ,plants

8 0
3 years ago
Which of these is not a protist?
Dmitriy789 [7]

Answer:

fungi

Explanation:

5 0
3 years ago
Read 2 more answers
A/an ____________________ stroke is damage that occurs when a blood vessel in the brain leaks or ruptures.
Lina20 [59]
The answer is a Hemorrhagic stroke.
6 0
3 years ago
Read 2 more answers
A student decided to investigate the effect of pH on the activity of the enzyme lipase , five different test tubes are set up ,e
castortr0y [4]

Answer:

the pH

Explanation:

The condition that should not be kept the same in each of the five test tubes is the pH.

Since <u>the aim of the experiment is to investigate the effect of pH on the activity of the lipase enzyme</u>, the pH is, therefore, the <em>independent variable</em>. Thus, it must be controlled or varied in all the test tubes in order to see its effect on the activity of the enzyme, which, in this case, would be the dependent variable.

6 0
3 years ago
Other questions:
  • Explain how the processes of sea-floor spreading and magnetic reversal produce bands of oceanic crust that have different magnet
    9·1 answer
  • Who is eligible for care within the veterans health administration?
    12·1 answer
  • Multiple alleles _____.
    7·1 answer
  • TRUE OR FALSE. The Amish are an example of a population where the founder effect has resulted in generally rare genetic traits b
    14·2 answers
  • Can a catalyst be used over and over again?
    14·1 answer
  • 11. What did Darwin think about on his journey home to England?
    10·1 answer
  • Need help asap please :( I think its C but I don't think that's right
    11·1 answer
  • 1. Define carrier
    13·2 answers
  • Slurring words together at a low level of volume and pitch is called
    8·1 answer
  • Why are flood plain soils particularly fertile
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!