Answer: the person before me is right. It’s a baby using a fork to eat.
Explanation: I just took the test! :)
Answer:
A) one intermediate band
Explanation:
Meselson & Stahl experiment on the E.coli bacteria to identify the mechanism of replication in bacteria.
For this, they grew bacteria in a heavy isotope of the nitrogen ¹⁵N which allowed the bacteria to take ¹⁵N in their DNA. They then grew the bacteria into ¹⁴N which allowed the bacteria now to take ¹⁴N in their DNA.
When they allowed the bacterial population to replicate their genome for one generation they found that their genome contained both types of isotopes of nitrogen in their DNA through centrifugation.
Since after the centrifugation only one band was observed which contains both the form of the nitrogen, therefore, the band was called intermediate band with intermediate density.
Thus, Option-A is the correct answer.
Explanation:
Hydrotropism is a plant's growth response in which the direction of growth is determined by a stimulus or gradient in water concentration. An example of positive hydrotropism is the growth of plant roots towards higher relative humidity level.
hope it helps!
Answer:
The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms. The host cell profited from the chemical energy the mitochondrion produced, and the mitochondrion benefited from the protected, nutrient-rich environment surrounding it.
Explanation:
Answer:
Hello There!!
Explanation:
I think its c.xylem vessels in the roots.
hope this helps,have great day!!
~Pinky~
