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GalinKa [24]
3 years ago
6

3

Biology
2 answers:
QveST [7]3 years ago
6 0
Hydrogen bonds between guanine and cytosine
nexus9112 [7]3 years ago
5 0

Answer:

\fbox\red{question\:given}

\blue{what \:is\: photosynthesis}

\huge\fbox\red{Answer↓}

the  \: process \:  by \:  which  \: green \:  plants  \:  \\ turn  \: carbon  \: dioxide  \: and  \: water\\  \: into \:  food \:using  \: energy \:  \\from \:  sunlight.

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A biology student caught and tagged 50 trout in a small lake. After two weeks, the student caught another 40 trout and found tha
Vlad1618 [11]

The best estimate of the population of trout in the lake is 500 individuals.

The low number of tagged trout recaptured may be because the tags slipped off.

This possibility can be reduced if the student used tags that does not slip off easily.

<h3>Mark and recapture method</h3>

The formula for calculating the estimated number of individuals in the population is given as:

  • N = (M*C) / R

where:

  • N = estimated Number of individuals in the population
  • M = number of individuals captured and Marked
  • C = total number Captured the second time (with and without a mark)
  • R= number of individuals Recaptured (those with a mark)

Calculating the estimate trout population:

N = (50*40)/4

N = 50

Therefore, the best estimate of the population of trout in the lake is 500 individuals.

The low number of tagged trout recaptured may be because the tags slipped off.

This possibility can be reduced if the student used tags that does not slip off easily.

Learn more about mark and recapture method at: brainly.com/question/10646744

6 0
2 years ago
All the following statements about destruction of cyclins are true EXCEPT: ubiquitin targets Cdks. destruction is carried out by
ZanzabumX [31]

Answer:

ubiquitin targets CDKs

Explanation:

Cyclins are named such because they undergo a constant cycle of synthesis and degradation during cell division. When cyclins are synthesized, they act as an activating protein and bind to Cdks forming a cyclin-Cdk complex. This complex then acts as a signal to the cell to pass to the next cell cycle phase.

Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.

6 0
3 years ago
Read 2 more answers
Claim: animal testing, though harmful to the lives of animals, is a vital resource for lifesaving medicines and vaccines that ca
natali 33 [55]

Answer:

Aristotle first wrote about the practice of animal testing in ancient

Greece during the third century BC.

Explanation:

4 0
3 years ago
Read 2 more answers
The critical component of Kochs second postudace is that
kicyunya [14]

Answer:

4. The suspected causative agent must be isolated from the diseased host and grown in pure culture

Explanation:

Robert Koch (1843-1910) was one of the most important bacteriologists of all time. Famous for discovering the tuberculosis bacillus (precisely on March 24, such as today, in 1882), he also discovered the cholera bacillus and is considered the founder of bacteriology. He worked on the isolation of infectious agents and reinfections from pure cultures, experiences from which he established the "Koch Postulates".

These postulates have been taken as a reference that describes the etiology of all the causative agents of an infectious disease, although they were originally used to describe only the tuberculosis bacillus. They are the following:

1- The agent must be present in each case of the disease and absent in the healthy.

2- The agent should not appear in other diseases.

3- The agent must be isolated in a pure culture from the lesions of the disease.

4- The agent has to cause the disease in an animal that can be inoculated

4 0
3 years ago
How do you get a population of dark colored mice?
anyanavicka [17]

Answer:

they have a genetic mutation that affects their fur color

Explanation:

:)     <em>  it izz wat it izzzz!!!</em>

7 0
3 years ago
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