Extra Cards

Question 1

Nerve cords

Answer 1

Sprout smaller nerves in simpler version of PNS

Question 2

Cephalization

Answer 2

Sense organs concentrated at anterior end

Question 3

Diffusion

Answer 3

Oxygen from the air moves directly into skin and carbon dioxide moves directly out through this (worms)

Question 4

Ovipositor

Answer 4

A longer abdomen with a projection found in the cricket through which eggs are laid

Question 5

Open system

Answer 5

Found in a cricket and other insects because it lacks a heart and enclosed blood vessels for fluid to travel through

Question 6

Endogenous opiates

Answer 6

Pain relieving substances

Question 7

Narcotics

Answer 7

Induce sleep or drowsiness by binding to neurotransmitter sites that normally receive the body’s natural pain relieving substances

Question 8

Psychedelic drugs

Answer 8

Greatly change users perception of the environment by increasing the amount of transmitters released in particular areas of the brain
(Visual auditory emotional control centers)

Question 9

Reduced hybrid variability

Answer 9

When hybrid zygotes daily to develop sexual maturity

Question 10

Reduced hybrid fertility

Answer 10

When hybrids do not produce functional gametes

Question 11

Evolution

Answer 11

As a result of natural selection genetic compositions of populations can change over generations