From the time a fertilized egg is implanted in a mother's uterus until about the eighth week of pregnancy, the developing organism is called a/an

a. placenta.
b. embryo. ( i think its this one. not sure.)
c. zygote.
d. fetus.

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Aperson is outside exercising. body temperature begins to rise, and the person starts to sweat. their body temperature then returns to normal, and the body stops sweating. a positive b negative c allosteric d homeopathic