Predation and herbivory

Question 1

Predation is an important source of what?

Answer 1

Natural selection

Question 2

Natural selection drives what?

Answer 2

Conspicuous adaptations in both predators and prey

Question 3

catching, killing and subduing prey =

Answer 3

Claws, teeth, fangs, beaks, stings, poisons, webs, traps

Question 4

Sensing prey =

Answer 4

Forward facing eyes, heightened visual and auditory acuity, electro and thermal heat sensing

Question 5

Behavioural adaptations =

Answer 5

Fleeing, group living, group defence, hiding

Question 6

Morphological/physiological adaptations =

Answer 6

Horns and spines, noxious secretions, autonomy, camouflage

Question 7

Adaptations in one species can lead to…

Answer 7

Adaptations in other species

Question 8

Mimicry =

Answer 8

One species evolves to look like another species

Question 9

Batesian mimicry =

Answer 9

A harmless ‘mimic’ evolves to resemble a dangerous ‘model’

Question 10

Mullein mimicry =

Answer 10

2 or more unpalatable species mimic each other , sharing the cost of ‘training’ predators

Question 11

Herbivory is good and bad for who?

Answer 11

Good for herbivores and bad for plants/algae

Question 12

What distinguishes herbivory from predation?

Answer 12

Rarely lethal

Question 13

What is compensation?

Answer 13

Describes the degree to which plants can tolerate grazing

Question 14

Most plants are…

Answer 14

Undercompensated for grazing and therefore have poorer fitness when grazed

Question 15

What defences have plants evolved against herbivores?

Answer 15

Toxins and secretions, spines and stings, leaf abscission

Question 16

What adaptations do herbivores have to exploit plants?

Answer 16

Chemosensory apparatus
Specialised digestive system

Question 17

what is chemosensory apparatus?

Answer 17

Highest quality plants, toxins

Question 18

Specialised digestive system?

Answer 18

Microbes with cellulase activity, multiple chambered stomachs, coprophagy