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Ne4ueva [31]
3 years ago
13

Based on diversity, life is divided into bacteria, archaea, and eukarya. these groupings are called

Biology
1 answer:
dmitriy555 [2]3 years ago
4 0
These groupings are called domains.
<span>A domain is the highest taxonomic rank of organisms. Carl Woese, an American microbiologist, and biophysicist designed the three-domain system which describes that the tree of life consists of three domains: Archaea, Bacteria, and Eukarya. Each of these three domains of life is characterized by rRNA which is unique to them.</span>
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Scientists studying transcription in yeast (Saccharomyces cerevisiae) created an experimental strain that produced a modified RN
SpyIntel [72]

Answer:

elongation rate of strain of S.cerevisiae during transcription.

wild-type and experimental strain not treated with soultion of amanitin will be the control group. The elongation rate of mRNA of this group must be observed.

Explanation:

Dependent variable is one whose value depends on another value. Here effect of presence of mRNA polymerase enzyme and inhibtor on elnogatino rate of mRNA is being observed. So elongation rate is the dependent variable

Control group is one where independent variable whose effect is being observed can't influence the results. In experiment 2, the effect of inhibitor is being observed. So the control group must not have that inhibitor. Other conditions must remain same for experimentan and control group.

6 0
3 years ago
What does it mean when a plant photosynthesizes at maximum speed?
AVprozaik [17]

Answer:

High stomatal conductance

Explanation:

Plants with a high photosynthetic capacity have a high stomatal conductance, in the absence of environmental stress (Reich et al., 1999, 1997). This enables plants with a high photosynthetic capacity to gain carbon rapidly, at the cost of high rates of water loss.

3 0
1 year ago
which enzyme is secreated by the juxtaglomerular cells of the kidney when circulating blood volume is reduced
PSYCHO15rus [73]

Answer:

Renin is secreted from juxtaglomerular kidney cells, which sense changes in renal perfusion pressure, via stretch receptors in the vascular walls. The juxtaglomerular cells are also stimulated to release renin by signaling from the macula densa.

Explanation:

5 0
1 year ago
The __________ system consists of the brain, spinal cord and nerves.
ad-work [718]

Answer:

A. Nervous

Explanation:

cmon man is this even a question??

5 0
3 years ago
When is it necessary for a scientists to do research? Select all that apply. before forming a hypothesis only after a hypothesis
Marysya12 [62]
Because a hypothesis is different from the research question, research is usually required before you make a hypothesis. A hypothesis is a prediction of the test that is about to incur. Without the research the people doing the test would not know what to be looking for or how to setup the test. Because of the reason;

I assume the answer is, after generating an idea from an observation.
5 0
2 years ago
Read 2 more answers
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