The correct order of events of
sound transmission through the ear is;
5. Sound waves enter the external
auditory canal
1. Sound waves strike the eardrum
2. The ear ossicles vibrate
4. The perilymph in the cochlea
moves
3. Hair cells of the organ of corti
vibrate
The answer is B.
Animals do cellular respiration which requires the intake of oxygen and the output of carbon dioxide. In order for plants to do photosynthesis, they need carbon dioxide to be able to make oxygen for animals to breathe.
The allele that is masked is recessive. The one which masks it is dominant.
Answer:
Option-4
Explanation:
In the given question, S. alterniflora grows in the seaward marsh whereas S. patensis grows in the high marsh. When S. alterniflora is removed, the S. patensis grows to a smaller portion whereas if S. patensis is removed, the S. alterniflora covers all the land.
This shows that although both are different species but they share a niche and the marsh land is the fundamental niche of the S. alterniflora as it can grow in all parts and therefore its distribution is limited by only a realised niche.
Thus, Option-4 is correct.
