General characteristics of phylogeny
Answers are for parents and teachers.
1
A population grew from 4000 to 5000. By what percent?
25
2
Give one example each of ontogeny and phylogeny.
Ontogeny – a tadpole developing into a frog; phylogeny – amphibians arising from fish.
3
Write two differences between aromorphosis and idioadaptation.
Aromorphosis – general rise, large groups arise; idioadaptation – specific adaptation, species arise.
4
Why are digestive organs undeveloped in a tapeworm?
It absorbs already digested food through its body surface.
5
A species whose numbers are falling worldwide is in which direction: progress or regress?
Biological regress.