The endometrium of most mammals is prepared to receive a developing embryo by hormones
secreted from the

Pituitary
Corpus luteum
Fallopian tubes
Cervix

Pl help it’s due tonight

Implantation, gestation, and birth. Reproductive patterns in placental mammals are diverse, but in all cases a secretory phase is present in the uterine cycle, and the endometrium is maintained by secretions of progesterone from the corpus luteum.

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a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

explanation:

you know they are heterozygous for a trait because they have it as jj or jj.