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DENIUS [597]
3 years ago
13

What do directional selection and disruptive selection have in common?

Biology
2 answers:
maw [93]3 years ago
5 0
The directional common between selection and disruptive is that both decrease genetic variation. 
fiasKO [112]3 years ago
3 0
The both decrease genetic variation
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Nuris is writing a paper on the scientist who first named cells after studying cork under a microscope. Who is her paper about?
Setler79 [48]
Robert Hooke was the first scientist to discover cell. This discovery was made possible by the use of microscope which he invented. With this microscope, Robert examined a cork and noticed pores which filled the entire volume of the thin slices of cork; he called the pores cells. This discovery was made in January 1653.
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3 years ago
Read 2 more answers
In dna methylation, which nitrogenous base is most frequently methylated?
Aloiza [94]
In DNA methylation, the most frequently methylated nitrogenous base is the cytosine. Its methylation is widespread in prokaryotes and eukaryotes. Its rate of DNA methylation differs greatly between different species like Arabidopsis thaliana which is 8%, Physarum, 4%, Mus musculus, 2.3%, and etc.
6 0
3 years ago
Adults with more than a 12-month history of migraines were assigned randomly in a double-blinded study to receive treatment with
lyudmila [28]

Answer:

Phase III

Explanation:

The given condition fall in the trial phase (Phase III) of cinical study which aims to:

- Determine drug's effectiveness (primary goal)

- Determine long-term drug safety

- Confirm findings

In Phase III, randomised, double-blind, placebo-controlled, parallel group study is majorly to evaluate the efficacy and safety of placebo in episodic migraine prevention in children (6 to < 12 years of age) and adolescents (12 to < 18 years of age).  

The trial consists of four phases: screening; double-blind therapy period for 24 weeks in which placebo or Erenumab is given to subject as dose 1, dose 2 or dose 3 (based on the participant's body weight) once a month via subcutaneous injection; optional dose level blinded extension phase (40 weeks) which involves subjects recieve dose1, 2 and 3 of placebo, and at last it follows a safety follow-up phase for 12 weeks (after 16 weeks  of the last dose of investigational drug).

Hence, the clinical phase is phase III.

5 0
3 years ago
Advancements in nuclear science have led to new technology which has been beneficial to society. Which technology is a possible
shepuryov [24]

I just did this BTW. The correct answer is A.) Nuclear fusion is the correct answer. Nuclear fission is what we use today in nuclear power plants, a great deal of radioactive waste, the other are by products of this process. Nuclear fusion releases a great deal of energy with a little radioactivity, but the problem is ignition temperatures; but maybe someday.

6 0
3 years ago
The spiders mentioned in the paragraph are
aksik [14]

Answer: the answer is C, Carnivores

Explanation: it says that spiders eat other insects, which makes them a Carnivores. I also have the same quiz in Illuminate but that's not really important, I just thought that it was cool that we go to the same school :)

4 0
3 years ago
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