Answer:
A slug would shrink and die if you were to sprinkle salt on in because it would cause water to leave the cells of the slug through the aquaporins in the cell membrane. This is because through osmosis water balances itself with the solute to reach equillibrium. When you pour salt on the slug you are making the outside a hypertonic solution that is going to draw out the water in the slug's cells.
Explanation:
Mitosis is the process of multiplying, (replication) of chromosomes. So when this happens, one cell will split into two of the exact same identical cells.
Answer:
Option B,
Explanation:
Proper restraint and handling techniques are used while dealing with animals in laboratory. These techniques ease the process of dealing with animals and must be practiced on regular basis even when there is no procedure being performed.
Unlike other animals cat is the most co-operative animals and it is usually dealt by restraining the body be one hand and head by other hand. Cats can also be restrained by holding the scruff with one hand and then gently holding the hind limbs followed by stretching it.
Hence, option B is correct.
Answer:
Franklin travelled widely in 1956, reporting the results of her virus structure research. By this time, however, Franklin knew that she was dying of cancer.
Hope this helps! <3
Sophia
The given is incomplete as the options are missing. The correct options for the given question are as follows-
(A) cultivation of agricultural land inhibits the decomposition of organic matter
(B) nitrogen-fixing bacteria are not as plentiful in agricultural soils because of the use of pesticides
(C) land that is available for agriculture tends to be nutrient-poor
(D) the nutrients that become the biomass of plants are not cycled back to the soil on lands where they are harvested
Answer:
Option (D)
Explanation:
In order to carry out agricultural practices, the soil must be rich in essential nutrients for the growth of crops. The soil fertility is a key role in the production of crops.
This agricultural land often requires a large amount of these nutrients and minerals because some of the nutrient minerals are converted into plant biomass which is then used up to produce energy in other sectors. So, the nutrients that were present in the soil are taken away and not transferred back into the soil. This means that the nutrient cycle gets affected. Due to this reason, there requires a constant supply of nutrients into the agricultural fields.
Thus, the correct answer is option (D).
