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Anna11 [10]
3 years ago
15

TRUE or FALSE Amoebas prey upon algae in aquatic environments.

Biology
2 answers:
kramer3 years ago
8 0

Answer:

false

Explanation:

IrinaK [193]3 years ago
7 0
It is a completely false statement that amoebas <span>prey upon algae in aquatic environments. The correct option among all the options that are given in the question is the second option. I hope that this is the answer that you were looking for and it has actually come to your desired help.</span>
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Which best summarizes the process of protein synthesis?
lapo4ka [179]
The synthesis<span> of </span>proteins<span> takes two steps: transcription and translation. Transcription takes the information encoded in DNA and encodes it into mRNA, which heads out of the cell's nucleus and into the cytoplasm. During translation, the mRNA works with a ribosome and tRNA to </span>synthesize proteins<span>.</span>
4 0
3 years ago
Read 2 more answers
6. (3 pts) After transformation, 40 colonies were present on the plate. What is the transformation efficiency of the competent c
natali 33 [55]

Answer:

Given:

Number of colonies on plate = 40

Amount of DNA used for transformation = 100ng

Volume of competent cells used = 100ul

Total volume = 1ml (1000ul)

Volume plated for growth = 200ul

The amount of cells transformed per 1 µg of DNA is called the transformation efficiency

(CFU is colony forming units) => (number of colonies on plate/ng of DNA plated) X 1000 ng/µg = CFU/µg of DNA

Amount of DNA used for plating = 100ng * (200/1000)

                                                      = 100ng * (1/5)

                                                      = 100/5 = 20ng

Efficiency calculation = 40 colonies / 20ng = 2 colonies/ng

               (2 colonies/ng) * (1000 ng/µg) = 2000 CFU/ug DNA

Transformation efficiency = 2000 Transformants / ug DNA

                                          = 2 x 10³ Transformants / ug DNA

Explanation:

Efficiency of transformation is highest in the 100 pg-1 ng range, so Low transformation efficiency could be because of high amount of DNA used for transformation.

6 0
3 years ago
One type of active transport is called cotransport. In cotransport, the energy available from an ion moving through a transport
kompoz [17]

Answer:

b- It is a spontaneous process.

Explanation:

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Substance transport occurs until concentrations inside and outside the cell are equalized.

According to this conceptualization we can conclude that the correct answer to your question is the letter B.

6 0
3 years ago
What is a substance that cannot be broken down into other substances by chemical reactions?
vovikov84 [41]
Element 
An element is a pure substance that cannot be broken down into other substances, an element is made up of only one type of atom. 
Hope this helps :) 
3 0
3 years ago
Disease or sickness is caused by microorganisms that grow rapidly between 41 and 140 degrees Fahrenheit. True or False
alisha [4.7K]

Answer:

It is True

Explanation

They thrive at temperatures  in the 41 to 140 degrees.

7 0
3 years ago
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