The purpose of the endocrine system is to Select one: a. extract nutrients from food to meet the body s needs for energy and eliminate solid wastes. b. move blood throughout the body to supply cells with oxygen and nutrients and remove wastes. c. produce hormones that help regulate many body functions. d. provide the oxygen needed by body cells and remove the waste product carbon dioxide.

c. produce hormones that help regulate many body functions

Explanation:

The endocrine system helps in the release of hormones and regulating them into bloodstream and these hormones that are released then travel to the cells to perform different functions like growth and development, reproduction, controlling of ones mood, metabolism etc.

Therefore, the correct option is C "produce hormones that help regulate many body functions"

Option A : the fern transitined from gametophyte generation to sporophyte generation.

Answer:

Effective food supply was most likely an effect on society that resulted from improvements in blood handling during World War I and World War II.

Myths about aging : 

Depression and loneliness are normal in older adults. ...

The older I get, the less sleep I need. ...

Older adults can't learn new things. ...

It is inevitable that older people will get dementia. ...

Older adults should take it easy and avoid exercise so they don't get injured.

The maltose molecule can be broken down into two individual glucose molecules with the help of an enzyme produced within a cell.

D).increasing the pH with in the cell.

Explaination:

Consumers are dissatisfied with the way that large corporate  farms are treating nature's natural resources.

Astronomers are able to detect the dimmer star because its gravity causes the bright star to . Astronomers can also spot the dimmer star by observing a phenomenon called a(n) binary.

Fungi are a food source for animals and humans. Fungi produce oxygen to breathe. Fungi destroy rocks and minerals. Fungi are natural recyclers.

D. The population density of beetles will decrease.

when soaked in dilute sodium chloride solution onion gain mass because of the process of osmosis.

 Explanation: Osmosis is a process when there is movement of water from the region of comparatively higher concentration to the region of lower concentration across in a permeable membrane.

Example with explaination :