What do we call structures that have different mature forms, but
develop from the same embryonic
tissue?
A. vestigial structures
B. homologous structures
C. mutation
D. DNA

Providing immunity by injecting the body with a weakened form a pathogen is known as

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Suppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer