Explanation:
cells and sperm cells
undergo meiosis I and meiosis II. Note the number assigned to each cell.
Identify the number of chromosomes in the different cells, represented
by a circle, by writing the symbol N for haploid and 2N for the diploid.
Write your answers on a separate sheet of paper.
Answer:
1. C
2. A
Explanation:
The content of vitamin C in skin of a normal person is high. Some of the major functions performed by Vitamin C are –
a) Synthesis of collagen
b) Support important body functions
c) Protect against UV damage
Deficiency of Vitamin C in our body causes following health issues
a) scurvy
b) Bleeding of gums
c) Skin fragility due to loss of connective tissue morphology or its damage
d) Impaired wound healing and
e) Distorted hairs.
Answer:
Energy flow in an ecosystem is unidirectional. It means that energy which is absorbed by the producers from sun and is converted into chemical energy, always flow from a lower trophic level to a higher trophic level as in a food chain when herbivore consumes producers the energy is transferred from producers to consumers and so on. Some of this energy is assimilated some is used by the organism and some is dessipated in the environment but the flow of energy is never reverted, that is obviously a producer can not consume a consumer.
of course we found 78 chrosomes in dog's blood cells