Answer:
C
Explanation:
You could literally search that up. It's correct though.
"Sperm develop in the testicles within a system of tiny tubes called the seminiferous tubules. At birth, these tubules contain simple round cells. During puberty, testosterone and other hormones cause these cells to transform into sperm cells."
Answer:
A field study is a general method for collecting data about users, user needs, and product requirements that involves observation and interviewing. Data are collected about task flows, inefficiencies, and the organizational and physical environments of users.
Draw a diagram showing marbles (being stars) farther away but around books (being planets).
Stem cells can specialize into any type of cell in the body
