Answer:
The correct answer is - as energy lost at every trophic level.
Explanation:
In any ecological ecosystem the energy pyramids always upright unlike other pyramids such as biomass showing the number of organisms, that can be diamond shape, inverted or upright.
The main reason behind this is due to the fact that it is only a pyramid in the ecosystem that always unidirectional in the food chain which is always some energy lost with an increase in the trophic level in the food chain. This loss of energy always gets back to the atmosphere in each step of the food chain.
Answer: d
Explanation:
A plant cell has a plant wall so a and b can be disregarded. Mitosis ends with a cleavage factor dividing the cell in two so d represents the last stage
Answer:
15 chromosomes
Explanation:
The endosperm is formed through double fertilization where one male gamete nucleus with polar nuclei to form a triploid nucleus called the primary endosperm. The endosperm therefore will contain 15 chromosomes since the polar nuclei is diploid and the male gamete is haploid forming a triploid nucleus.
Coz they need food to live long and so they r big in size containing large amount of food. if they'll divide to form more no. of gametes then their food content will decrease and so theyll die
