All living things must maintain homeostasis
(homeostasis: organisms maintain stable internal conditions)
Organisms respond to stimuli from their environment such as light, heat, and touch.
Autotroph = automatic (self providing nutrition)
Heterotroph = providing nutrition through other substances
Metabolism:
- Process in body which converts food and drinks into energy
- Calories in food and beverages are combined with oxygen to release the energy for
movements
Reproduction:
- Sexual Reproduction: when sperm from male parent fertilizes an egg from female
parent (combination of two different cell which creates a new organism)
- Asexual Reproduction: new offspring is produced by single parent (ex: cells dividing)
Homeostasis:
- Maintaining a stable internal environment (response)
- Response to stimuli: process that results in change or activity (movement, enzyme
production, etc.)
Excretion:
- Removal of waste products (metabolic wastes being eliminated)
- Ammonotelism (ammonia), Ureotelism (urea), Uricotelism (urine / uric acid),
Aminotelism (amino acids)
Nutrition:
- Exchange of materials
- Chemical process of converting substances to energy and other
Growth:
- Movement and change of shape or size
