Quiz 5 prep Flashcards
The majority of all animal species are:
Insects
How did diversity in feeding appendages arise?
Walking appendages became feeding appendages in anterior most segments
Insects exchange gas through pores called…
Which connect to an internal system of tubes called…
Spiracles
Trachae
Main dividing line among insects is…
Those who undergo metamorphosis and those who don’t
Crustaceans…
Have a hard, external skeleton composed of chitin
Altruism =
An individual reduces his/her own direct fitness to increase the fitness of another individual
For group selection to be an evolutionarily stable strategy, then…
The characteristics of the group must be heritable
When it comes to hymenoptera…
Group benefits come from living in and defending the nest
How to best describe the genetic basis of behavior?
Most behaviors are influenced by many genes, and a few behaviors are strongly influenced by a single gene
Trying to determine the role that genes play in social grooming in apes
Development
True or False: Behavioral variation between species may be attributed to differential responses to the same hormone
True
Shift to bipedalism required changes to the architecture of the:
Spine Pelvis Legs Skull NOT HANDS
How to explain loss of pigmentation seen in different races?
Lighter pigment allows for more efficient production of vitamin D, which is an advantage in areas with less sunlight
Which human populations have the highest levels of genetic variation?
African
