1. goldfish, tilapia and barracuda belong to which class of fish?

a) osteichthyes
b) chondrichthyes
c) agnatha
d) countershaded

2. lamprey and remoras belong to which class of fish?

a) osteichthyes
b) chondrichthyes
c) agnatha
d) countershaded

3. while fishing you reel in a fish that you've never seen before. it is a dark blue-grey on its dorsal (top) side and white on its ventral (underbelly) side. what type of coloration does this fish demonstrate?

a) disruptive
b) cryptic
c) predatory
d) countershade

Sand spinifex grass is adapted to growing on sand dunes. it is a rapidly spreading plant and the creeping runners produce new root systems. which of these best explains the benefits of these features? a. it limits water loss through the leaves. b. it provides support by anchoring the plant. c. it protects the plant from predators. d. it allows the plant to tolerate salt. reset submit

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?