Question

what is the main function of the endocrine system?
send chemical signals throughout the body
protect the inner organs
form thoughts and memories
excrete waste

the main function of the nervous system is:
send signals throughout the rest of the body
secrete hormones into the body
movement of the body
protect the body

which of the following is not part of the plant reproductive system
flowers
leaves
fruit
pollen

Explanation:

• For the endocrine system question: The endocrine system consists of glands that secrete hormones (chemical signals) into the bloodstream to regulate various body functions.
• For the nervous system question: The nervous system (including the brain, spinal cord, and nerves) sends electrical and chemical signals throughout the body to control and coordinate actions, sensations, etc.
• For the plant reproductive system question: Flowers are the reproductive organs (contain male and female parts), fruit develops from the fertilized ovary (related to seed dispersal in reproduction), and pollen is the male gamete. Leaves are mainly for photosynthesis (a vegetative function, not reproductive).

Answer:

• First question: Send chemical signals throughout the body
• Second question: Send signals throughout the rest of the body
• Third question: Leaves