Adaptation Flashcards Preview

YEAR 9 - Biology > Adaptation > Flashcards

Flashcards in Adaptation Deck (4)
Loading flashcards...
1
Q

How is the flea adapted?

A

Sharp tube-like mouthparts - For piercing the skin and sucking out blood.
Flattened body - For easy movement between hairs.
Hard exoskeleton - Hard to kill or squish.
Long hind legs - For being able to jump onto animals.

2
Q

How is the tapeworm adapted?

A

No gut - Absorbs already digested food.
Hooks on the head - Hard to dislodge.
Segments with lots of eggs - For reproduction.
Flat body with large surface area - For absorbing food and easy movement.
Suckers on the head - Hard to dislodge.
Thick outer cuticle skin - Does not get digested.

3
Q

Why do organisms adapt?

A

Organisms adapt to be better competitors.
Animals compete for: Food, Mates, Territory
Plants compete for: Light, Water, Space, Nutrients

4
Q

How are organisms adapted to extreme environments?

A

Desert animals - large Surface Area : Volume to lose heat
Arctic animals - small Surface Area : Volume to lose less heat
Thermophilic bacteria - Hot springs, sulphur for respiration, survive in low pH conditions
Acidophile - Hot acidic springs, low respiration rate, live in volcanic vents