In a particular city in one year, the birth rate is 25 per 1000 people. the death rate is 10 per 1000 people. what is the city’s annual population growth

3.5%

35%

1.5%

25%

If the birth rate is 25 for every 1000 people, that would mean the population is growing by ( x 100)% = 2.5%.  

However, the annual population growth must account for the death rate as well (people aren't just being born in the population...people are also dying). There are 10 deaths for every 1000 people, which means the population is decreasing by ( x 100)% = 1.0%.

The net growth, or overall annual growth, of the population is equal to the birth rate - the death rate. Therefore, 2.5% - 1.0% = 1.5% population growth.

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.

i would go with b

cytokinesis occurs after telophase so that eliminates d

and the entire reason for cytokinesis is for cellular reproduction