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Tcecarenko [31]
3 years ago
13

Describe the investigations and experiments that produced the evidence that led to our current version of cell theory

Biology
1 answer:
Nataly [62]3 years ago
6 0

Answer: examination of bark of tree by Robert hook 1665 also experiment conducted by MJ.schleide1838 in plant as botanist

Also experiment conducted by Theodore Schwan in animal as zoologist 1839

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On average, activated yeast cells divide once every 120 minutes; that is, each individual cell divides into two individual cells
astra-53 [7]

Answer:

The correct answer is 4,960,000

Explanation:

If a yeast cell divides into two yeast cells in 120 minutes that means a yeast cell needs 2 hours to get double. So according to the question 2 hours ago a yeast colony consisted of 310,000 cells that means the present colony should have 620,000 cells.

So after six hours from now, this population will divide three times in six hours because the generation time of yeast cell is 2 hour and each time the number of cells will double.

Therefore, in first time the number will increase to 1,240,000(620000*2), the second time the number will increase to 2,480,000(1240000*2) and after final division, the number will be 4,960,000(2480000*2).

Therefore after 6 hours from now, the approximate number of yeast cells will be 4,960,000.

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3 years ago
Please help me I will give you the brain thing and extra points. image below part 2
Marina86 [1]
I belive its C
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4 0
3 years ago
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In sickle-cell disease, malformation of red blood cells is caused by only one mistake for one amino acid in the genetic code for
pav-90 [236]

Answer:

A. True

Explanation:

Hemoglobin is a protein and has two distinct types of polypeptide chains. These are called the alpha and beta subunits. The gene that code for the beta chain undergoes a mutation in a single base that causes sickle cell anemia. Here, adenine base in the genetic code for glutamic acid is substituted with a thymine base.

The genetic code for glutamic acid in the beta chain gene is GAG. The "A" is replaced with "T" and the new code "GTG" codes for valine. Therefore, the mutated hemoglobin has valine in place of glutamic acid. This makes these mutated protein molecules to form aggregates resulting in a change in the shape of RBCs carrying them.

4 0
3 years ago
How is. Preparing for a space mission similar to planning for a camping trip?
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You should consider how much you will eat, what materials you will use during the trip, how many days you the trip would last, how to budget what you can ideally bring without being overloaded, and what emergency stuff you need to bring, just in case something gets out of hand.
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Mikah is creating a poster for her science class to illustrate the major factors responsible for reducing the amount of global b
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I would go with A. 
Hope this Helps!
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