lecture 22 - plant animal interactions

Question 2

colonization and diversification of plants on land began about ___MYA

Answer 2

500

Question 3

cretaceous terrestrial revolution

Answer 3

cretaceous period: 150-50MYA
period of high HIGH angiosperm diversification
birth of many clades of terrestrial plants and anmals

Question 4

angiosperm terrestrial revolution

Answer 4

appearance of high angiosperm diversity
late cretaceous (100mya)
led to overwhelming dominance in terrestrial ecosystems

Question 5

some characteristics that allowed for angios to dominate

Answer 5

flowers are highly variable
double fertilization –> ensures food supply is only made if fertilization is successful, efficient
symbioses
more vasculature in leaves
dense stomata (improves rates of transpiration and psynth)
WGD - triggered radiation events
vessel elements

Question 6

why are fungi good matches for plants?

Answer 6

very small and thin body plan
heterotrophs: want food

Question 7

zoophily

Answer 7

dispersal of pollen by animal

Question 8

anemophily

Answer 8

dispersal by wind

Question 9

entomopily

Answer 9

insec tpollinated

Question 10

diocious plant vs monoicious plant

Answer 10

diocious: produces sex organs (antheridia and archegonium) on different plants
monoecious: produces both sex organs on one plant

Question 11

zoophily vs zoochory

Answer 11

zoophily: dispersal of pollen by animal vectors
zoochory: dispersal of seeds (with or without fruit) by animals

Question 12

mosses are typically though of as using ___ to transport sperm, but some may use ___

Answer 12

water, microarthropods