C) small, one-celled organisms and primitive jellyfish
Answer:
The correct answer will be option-B.
Explanation:
Meiosis is a type of cell division which proceeds in two stages: meiosis I and meiosis II and result in the formation of four daughter cells.
The meiosis I is known as the reductional division as two daughter cells are formed with reduced ploidy level that is haploid cells from diploid cells. The cells formed contains chromosomes with two chromatids as the DNA amount gets doubled after the DNA synthesis.
Thus, Option-B is the correct answer.
D) 68.6 m/s
Final Velocity = Initial Velocity - (Gravity)(Time)
Final Velocity = 0 m/s - (-9.8 m/s)(7s)
Final velocity = 68.6 m/s
Answer:
Both the nature of the gene and its environment can influence the mutation rate.
Explanation:
Mutations are caused by environmental factors known as mutagens.
Types of mutagens include
- radiation,
- chemicals, and
- infectious agents.
Birds and mammals independently evolved four-chamber hearts
