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RSB [31]
3 years ago
11

After allowing phages grown with bacteria in a medium that contained 32p and 35s, hershey and chase used a centrifuge to separat

e the phage ghosts from the infected cell. they then examined the infected cells and found that they contained _____, which demonstrated that _____ is the phage's genetic material.
Biology
1 answer:
yaroslaw [1]3 years ago
7 0
They then examined the infected cells and found that they contained labeled DNA, Since the phage DNA entered the infected cell, which demonstrated that it makes sense that DNA is the phage's genetic material. A bacteriophage or a phage is a virus that infects and replicates within Bacteria and Archaea. Phages replicate within the bacterium following the injection of their genome into its cytoplasm. 
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What is the measurement of the force of gravity pulling down on an object
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The measurement of the force of gravity pulling down an object is called weight, which is basically what you see when you step on a scale.
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Why is a food chain is the simplest model of energy flow between trophic levels in an ecosystem?​
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because it represents only one pathway of energy flow:

Explanation:

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Which of the following is characteristic of the second stage within a demographic transition? A. The birth rate falls to meet th
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The answer is C) The death rate begins to fall, but the birth rates remain high for a time. No countries in the world are currently in Stage 1 or demographic transition. However, many are in stage 2, which is why many governments are concerned about overpopulation. 
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3 years ago
Read 2 more answers
In 2016, Sub-Saharan Africa had a doubling time of 23.3 years.
Masja [62]

The correct answer is Option B: 3%.

In 2016, Sub-Saharan Africa, doubling time is 23.3 years, thus Growth rate is 3%.

<h3>What is doubling time?</h3>
  • The doubling time is the time taken by a population to double in its size.
  • This concept is applied to population growth, inflation, resource extraction, consumption of goods, the volume of malignant tumors, and many other things that tend to grow over time.
  • There is an important relationship between the percent growth rate and its doubling time known as “the rule of 70”: to estimate the doubling time for a steadily growing quantity, simply divide the number 70 by the percentage growth rate.
  • Therefore, Growth rate is 70 divided by doubling time (70/ doubling time).
  • Here, Doubling time= 23.3 years.
  • Growth rate= 70/23.3= 3%

Learn more about population growth rate here:

brainly.com/question/26446097

#SPJ1

4 0
2 years ago
The axons of neurons are often enclosed by a fatty protective coating called ____________.
scZoUnD [109]
This is called the myelin sheath.
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