Question

please answer all!

15. Three populations of crickets look very similar, but the males have courtship songs that sound different. What function would this difference in song likely serve if the populations came in contact? a. a temporal reproductive isolating mechanism b. a postzygotic isolating mechanism a behavioral reproductive isolating mechanism d. a gametic reproductive isolating mechanism 16. Bacteria had new genes inserted in its DNA by a virus during a gene therapy trial. This is known as a. Conjugation Mutation Transformation Transduction d. 17. Which of the following is not a characteristic of all members of Kingdom Plantae? a. Autotrophic b. Reproduce during alternation of generations Have cell walls Produce seeds

Answer 1

15 behavioural isolating mechanism- singing is call for mating, if the song is different mating will not happen and it is termed as behavioural isolating mechanism.

Temporal isolation is with respect to time

Postzygotic, zygote become infertile after fusion

Gamete isolation two different gametes don't fuse and hence no formation of zygote.

16 transduction - it is the type of production of recombinants by viral phages.

Conjugation occurs between two bacteria

Transformation occurs within the cell and mutation caused by some agents.

17 produce seeds- all members of plantae will not produce seeds for example some plants will not produce seeds but produce sporophytes and algae also don't produce seeds.

All members of plantae are autotrophic, contains cell wall, and reproduce by alterations of generations.