A farmer performs a test cross on his erect-eared sow (female pig). Explain the purpose of a test cross and describe the other individual involved in the cross. Create a Punnett square for each test cross possibility. Write a summary sentence explaining the result of each test cross.

a. suckling by young

b. hypothalamus

c. dopamine

d. trh

e. anterior pituitary

f. mammary glands

g. milk production

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

a lot of people sadly don't know the best way to learn is cheating off of your friends or this amazing thing called google

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers