Science Crit D Summative "Living Things"

MRS GREN - what is it

Living things carry out seven life processes. They are:

Movement - Can move or move part of the body

Respiration - Releases energy from food

Sensitivity - Notices and responds to change

Growth - Gets bigger and develops

Reproduction - Makes offspring

Excretion - Removes waste made by the body

Nutrition - Takes in food or makes food

Example: A plant grows toward light. It responds to light (sensitivity) and changes its growth direction.

What does Classification mean?

Classification means putting organisms into groups based on shared features. It helps scientists identify, compare and study living things.

What does species mean?

In the usual biological definition, a species is a group of organisms that can reproduce with each other and produce fertile offspring.

What is Adaptation?

A feature that helps an organism survive and reproduce in its environment.

Organism/Adaptation/How it helps - Polar Bear

Polar bear (organism) - Thick fur and a layer of fat (Adaptation) - Helps keep the body warm (How it helps)

Organism/Adaptation/How it helps - Cactus

Cactus (organism) - Spines and thick stem (Adaptation) - Reduces water loss and stores water plus it offers protection (How it helps)

Organism/Adaptation/How it helps - Duck

Duck (organism) - Webbed feet (Adaptation) - Helps it push through water (How it helps)