Science - Ecology
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
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What are the seven signs of life?
Movement, Respiration, Sensing, Growth, Reproduction, Excretion, Nutrition (MRS GREN)
Where does most of the energy for life come from?
The Sun
Which reaction is used by most producers to store energy?
Photosynthesis
True or false: all living things carry out respiration
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Where in the cell does aerobic respiration occur?
Mitochondria
Where in the cell does anaerobic respiration occur?
Cytoplasm
What is the word equation for photosynthesis?
Carbon dioxide + Water –> Glucose + Oxygen
What is the word equation for aerobic respiration?
Glucose + Oxygen –> Carbon dioxide + Water
What is the purpose of respiration?
Provides energy for other life processes
What is the name for the polymer made from glucose that is used to store energy?
Starch
What is the chemical test for starch?
Iodine solution turns black
Name two enzymes that break down starch
Amylase, Carbohydrase
A polymer is a large chemical made up of repeat units with what name?
Monomers
Which part of a plant typically has the most starch?
The root (or tuber)
In a food chain, what do the arrows represent?
The transfer of energy
Define a producer
An organism that produces its own nutrients
Define a consumer
An organism that gets its nutrients from other organisms
Define a herbivore
An organism adapted to consume plants
Define a carnivore
An organism adapted to consume animals
Define a predator
An animal that hunts other animals
Define a prey
An animal that is hunted by other animals
Define a top (Apex) predator
An organism at the end of the food chain, which has no natural predators
What is the technical term for each layer of a food chain / web?
A trophic level
If the number of prey species decrease, what is likely to happen to their predators?
After a delay, the predator species will also decline