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Taya2010 [7]
3 years ago
8

About one quarter of drugs prescribed in the U.S. comes from

Biology
2 answers:
S_A_V [24]3 years ago
8 0
A because weed comes from a plant and is harvested. cocaine also
Alexxandr [17]3 years ago
6 0
I'm not sure but I think the answer is A. Plants. Then again I'm not 100% sure that this is correct
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A drug company is testing the effectiveness of a new blood pressure medicine using rats as the test subjects
Yanka [14]

A constant factor could be the dose of the drugs  and the species of the rats used.

<h3>What is a constant factor?</h3>

In an experiment, a constant factor is one that is not allowed to change al through the experiment. This one must be held as the same and not allowed to vary. A constant factor could be the dose of the drugs  and the species of the rats used.

The factor that would be different for the experimental group and the control group  the administration of the new drug.

Learn more about experiment:brainly.com/question/11256472

#SPJ1

6 0
1 year ago
How many autosomes does a human female have? <br> What are her sex chromosomes?
ICE Princess25 [194]
Human's have 22 pairs of autosomes. Females have two copies of the x-chromosome.
8 0
2 years ago
In another one of Mendelssohn Experiments, he crossed the off spring. Two pea plants with purple flowers (Pp) were crossed.
nignag [31]

Answer:

There will be a dominant and recessive trait that would be formed.

Explanation:

3 purple flowers would be dominant while 1 will be recessive.

8 0
2 years ago
Which statement best summarizes the current state of land ice in
Inga [223]
I believe the answer is C
Hope this helps you have a good night
3 0
2 years ago
A desert plant called Kalanchoe can reproduce, either with sexual reproduction through flowers, or asexually by budding off mini
AnnyKZ [126]

Answer:

The correct answer will be- will be called "Clones" with no genetic variation thus result in less adaptability to environment.

Explanation:

Plants can reproduce by both modes of reproduction called asexual and sexual reproduction.   The asexual mode of reproduction produces genetically similar offsprings in less period of time and thus helps in spreading of the species in minimum time as in the case of Kalanchoe.

The Kalanchoe can dominate a large area of the habitat using this mode of reproduction but at the cost of genetic variation.  

Since asexual reproduction results in Clones with same genetic material so the descendants of the plant will be less adaptive to changing the environment as asexual reproduction does not involve genes.

3 0
3 years ago
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