Biology Quizzes Ch 26, 29, 30, 31, 34, 40
Consider Figure 26.5 in your textbook. What does each branch point signify?
A node, and/or most recent common ancestor.
Blood is classified as what type of tissue?
connective
What acts as the brain of a plant?
the tip of the radical
What type of ergotism do modern scientists suspect was the culprit in this case?
Convulsive
Which of the following are assumptions that underlie the use of the molecular clock?
Regions of genomes being compared evolve at a constant rate.
If ergotism was indeed the cause, what was the source of the infection?
Rye/grain
Which of the following represents a homology?
a cat's paw and a human's hand.
What is the major (most obvious) derived trait of humans?
bipedalism
Among the types of heat exchange, which one is the transfer of heat by the movement of air or liquid past a surface?
convection
What unique trait of the chordate will develop into the brain and spinal cord?
dorsal hollow nerve cord
The avian wing and feather were adaptations to facilitate what purpose?
flight
Which animal must eat a larger proportion of its weight in food each day: a house cat or an African lion caged in a zoo?
house cat