10A

Question 1

Tolerance Range

Answer 1

The range of environmental conditions in which an organism can survive
- zone of Physiological stress (survive)
- Optimum Range (thrive)
- Zone of Physiological stress (survive)
- Zone of intolerance (not stay alive)

Question 2

Structural Adaptation

Answer 2

• Modifications to an organism’s physical structure
• e.g, Insulation, evolved to the optimal thickness of fur and fat to regulate temperatures.

Question 3

Physiological Adaptation

Answer 3

• Envolved modification to an organism’s internal functioning or metabolic processes
• e.g, Metabolic Heat, Can be either an endotherm or an Ectotherm.
• Endotherms spend a lot of energy producing metabolic heat and must find strategies to release excess heat
• Ectotherms obtain heat from their environment and they don’t spend energy generating metabolic heat

Question 4

Behavioural Adaptation

Answer 4

• Evolved modifications to an organism’s actions
• e.g, Evading Extreme Conditions, is when an animal avoids the extreme temperatures. They do this by seeking out shade or retreat to a burrow system.
• being nocturnal can be a Behavioural Adaptaton as the animal has adapted to being inactive during the day and active during the night
• this allows them to avoid certain predators and be able to do their normal routines at night when it’s nice and cold.

Question 5

Adaptations for Plants in the Desert

Answer 5

• In hot environments, plants usually limit te amount of heat being absorbed

Question 6

Three Common Strategies to limit Heat Absorption for Plants

Answer 6

• Lightly coloured or reflective leaves (or Photosynthetic Organs)
  
  • Photosynthetic Organs are macro structures where photosynthesis is taken place.
    - this includes the leaves and photosynthetic branches
• Producing leaves that are smaller in surface area
• orienting their leaves vertically to minimise the surface area exposed to the sun

Question 7

Increasing Water Uptakes

Answer 7

• Plants get their water from the absorption through their roots
• in a desert, plants spread their roots hori