Is the struggle for resources.
Plants compete for -light
Animals compete for - food
Salty environments like the sea and lakes. Things that live there are bacteria, mangroues (trees) roots which can absorb the water and not the salt. Have a special cell wall.
Hot environments- camels, bacteria. Not many living things live there so less competiton
Pressure - bottom of the ocean and bacteraia can live there. Fish and sea mammals (whales, dolphins)
Cold environments - thick fur that traps air which is a good insulator.
Thick layer fat is a good insulator.
White which is for camoflage to confuse prey.
Surface area- small ears lose less heat. Large body which can hold heat.
Animals in hot climates.
Have a problem with heat. More surface area with large ears with more surface area in contact with the air.
Cacti- Stems that can store water. Widespread root systems that can collect water from a large are. Have spines instead of leaves protect the cacti from animals that might eat them
Might resemble poisonous plants to deter predators.