Answer:
9 pm
Explanation:
A pulls into the station every 6 hours while B pulls into the station every 3 hours. Hence, for every time A pulls up, B must have pulled up twice.
<em>They both pulled into the station at 3 pm. At 6 pm (3 pm + 3 hours), B would pull into the station while A would still be on the road. At 9 pm (3 pm + 6 hours), B will pull in once more while A will just be pulling up the first time since 3 pm.</em>
Hence, the next time both trains will pull into the station at the same time would be 9 pm.
Answer:
do it in your self hahahahahaa
Selective breeding makes use of existing, naturally present gene variants in a species? and the natural process of breeding. Genetic engineering involves a direct change to an organism's genome in the laboratory. Gene variants made through genetic engineering can be passed from one generation to the next.
Polar ice caps are the coldest place on the earth. The temperature here is very low, always below 0 degree Celsius on an average.
Polar ice caps has no vegetation because:
1. Ice is present on the ground permanently.
2. Water present in the soil remains frozen and thus, unavailable for plants to grow.
3. Cold weather that do not support vegetation.
Specificity is a property of the enzyme and describes how restrictive the enzyme is in its choice of substrate; a completely specific enzyme would have only one substrate. ... Consequently, a single serine protease may act on various substrates although at different rates.
Here is a example
Enzymes showing substrate specificity are specific only to one substrate and one reaction. Example: Enzyme lactase can only hydrolyze the β-1-4 glycosidic bond of lactose to yield galactose and glucose. Similarly, Maltase can only act on the α-1-4 glycosidic linkage of two glucose molecules in maltose..
Source of info: Goo gle