Question

1. what type of cancer killed henrietta lacks? *

colon
cervical
lung
brain

1. why was george gey trying to grow human cells outside the body? *

to create fully cloned humans for medical experiments
to study human biology and test treatments in a controlled lab setting
to prove that tumors are contagious between people
to preserve organs for transplant surgery

1. why do scientists need to be able to study cells in a laboratory environment? *

so they wont endanger patients lives
so they can repeat experiments
because they need a large supply of identical cells

Explanation:

1. Henrietta Lacks died from cervical cancer, which is the source of the famous HeLa cell line.
2. George Gey's goal was to grow human cells in vitro to study biological processes and test potential treatments in a controlled, lab-based environment, without risking human subjects directly.
3. Studying cells in a lab allows scientists to work with a consistent, large supply of identical cells, which is critical for controlled, repeatable experiments that would not be feasible with human subjects or variable biological samples.

Answer:

1. Cervical
2. To study human biology and test treatments in a controlled lab setting
3. Because they need a large supply of identical cells