You identify a previously unidentified plant species and decide to study its genetics. You establish true breeding strains for leaf shape (longer than wide vs equal length and width) and flower color (white vs. yellow). When you perform a dihybrid cross with these strains, you find that your results are very different than those predicted by a 9:3:3:1 ratio. You calculate a chi square and get a p value of less than 0.0001. Which of the following statements is most accurate based on this observation?

#Question id: 3476

#Unit 9. Evolution & Diversity of Life Forms

The genetic relatedness (r) of an individual to brother is 0.50, according to Hamilton’s Rule, only if the fitness benefit is

#Question id: 3477

#Unit 9. Evolution & Diversity of Life Forms

Which one of the following statements is INCORRECT?

#Question id: 3478

#Unit 9. Evolution & Diversity of Life Forms

Natural selection may favour the evolution of foraging behaviours by predator that

#Question id: 3479

#Unit 9. Evolution & Diversity of Life Forms

Which of the following could be classified as habituation?

A) You enter a room and hear a fan motor. After a period of time, you are no longer aware of the motorʹs noise.

B) You hear a horn while driving your car. You step on the brakes but notice the sound came from a side street. You resume your previous speed.

C) One morning you awake to a beep-beep-beep from a garbage truck working on a new early morning schedule. The next week the garbage truck arrives at the same time and makes the same noise, but does not wake you up.

#Question id: 3480

#Unit 9. Evolution & Diversity of Life Forms

Which of the following statements about learning and behavior is correct?

A) Operant conditioning involves associating a behavior with a reward or punishment.

B) Associative learning involves linking one stimulus with another.

C) Behavior can be modified by learning, but some apparent learning is due to maturation.

D) Imprinting is a learned behavior with an innate component acquired during a sensitive period.

#Question id: 3481

#Unit 9. Evolution & Diversity of Life Forms

Classical conditioning and operant conditioning differ in that

A) classical conditioning takes longer.

B) operant conditioning usually involves more intelligence.

C) operant conditioning involves consequences for the animalʹs behavior.

D) classical conditioning is restricted to mammals and birds.