Excursion

Question 0

An example of a physiological adaptation

Answer 0

Snails leaving a chemical trail to return home

Question 1

Physiological adaptation

Answer 1

Chemical changes within the organism eg. Hormones

Question 2

An example of a structural adaptation

Answer 2

Changes to the anatomy/formation of an organism

Question 3

Example of a structural adaptation

Answer 3

Shell on a snail

Question 4

Behavioural adaptation

Answer 4

Changes to an organisms daily activities/actions

Question 5

Example of a behavioural adaptation

Answer 5

Animals clustering together

Question 6

Indicator organisms

Answer 6

A particular species or group of species which are often associated with a zone

Question 7

Supra-littoral zone

Answer 7

The area of the rocky shore that is the highest and extends from above the range of the nodilittorina species down to the barnacles

Question 8

Littoral zone

Answer 8

The area of the Rocky sure which roughly falls between the high and low water marks, the area between the highest barnacles and the higher kelps.

Question 9

Sub-littoral zone

Answer 9

The area of the Rocky shore which is below the littoral zone and is characterised by the presence kelp.

Question 10

Why would a species inhabit an area higher up the shore?

Answer 10

To avoid predators
Too crowded or too much competition down below
Maybe wave action is too strong.

Question 11

Adaptations to overcome desiccation include:

Answer 11

• Hard external coverings
• Operculum (the trap door closing a snail shell)
• Clumping together
• Seeking shelter (shade, algal masses, gutters and rock pools)

Question 12

Adaptations to prevent being swept away include:

Answer 12

• Holdfasts
• Passive resistance (round shape allows water to wash over)
• Cementing exoskeleton to rock surface
• muscular feet
• Streamline shape
• Shelter: algal masses, gutters and rock pools

Question 13

Reproduction

Answer 13

• shed eggs and sperm into the water
• internal fertilisation, then shed them into the sea
• lay eggs attached to the rock surface, in sacs or egg masses

Question 14

What are the most significant factors contributing to the desiccation of organisms found it intertidal areas?

Answer 14

Exposure to the air environment as a result of a receding tide, wind, air temperature, exposure to the sun, humidity, wave splash and spray.

Question 15

Which surface of the Rocky Shore has the most exposure to the sun and which has the least?

Answer 15

The North has most exposure in the south has least.

Question 16

What are the abiotic factors of the Rocky Shore?

Answer 16

Rocks, tide, oxygen levels in the ocean, temperature, pH levels, UV radiation, substrates, wind, wave action.

Question 17

What are the biotic factors of the Rocky Shore platform?

Answer 17

Competition for food, space, mates and shelter. Predation.

Question 18

Transect

Answer 18

A line across a habitat or part of a habitat that records the population of organisms at regular intervals of the transect.

Question 19

Quadratic

Answer 19

A small area placed along a transect that can be used to measure the number of a particular species of organisms within that space. (Population density)

Question 20

What is a Ramsar wetland? Or why is swan bay an important national park?

Answer 20

A stop off point for migratory birds.

Question 21

What are the difference between swan bay and rocky shore?

Answer 21

Different: wave action, wind, temp & producers

Question 22

What are the main producers of the rocky shore?

Answer 22

Green algae, lichen, kelp, neptunes necklace, red turf algae

Question 23

What are the main producers of swan bay?

Answer 23

Phytoplankton, micro algae, sea grass