During pregnancy, the changes in the milk glands and ducts of the breast occur because of the influence of

Prolactin

Explanation:

It is produced by the pituitary gland and stimulates the development of the mammary ducts to produce lactation milk especially in the latter stages of pregnancy (from third trimester). This is in preparation for birth so that the child can suckle when born. The levels of prolactin are regulated by estrogen levels in the blood and when progesterone levels fall during end of pregnancy.

the answer is admiramos

the rule for verbs is whoever you are referring to (in this case 'nosotros'), you need to change the ending of the word.

nosotros - amos

yo - o

tu - as

el, ella, usted - a

ellos, ellas, ustedes - an

(examples: nosotros bailamos (instead of bailar) or yo hablo (instead of habla)

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.