Insect Body Systems

Question 1

What are four strategies to locate and court mates (list and give an example)?

Answer 1

1. Chemical (ex: pheromones, which are chemical cues released by one animal intended to change the behavior of another individual within the same species)
2. Tactile (ex: male fruit flies tap female fruit flies to initiate courtship)
3. Visual (ex: male fireflies shine to attract females)
4. Auditory (ex: crickets and cicadas rub their wings together to generate sound)

Question 2

What are the general steps involved in an insect molting?

Answer 2

1. Grow inside old cuticle
2. Form soft new cuticle
3. Digest part of old cuticle
4. Break open old cuticle
5. Extract self and expand
6. Harden new cuticle

Question 3

Where is the ventral nerve cord?

Answer 3

Bottom of diagram

Question 4

Where is the dorsal artery?

Answer 4

Top of diagram

Question 5

Where is the exoskeleton?

Answer 5

Exterior of diagram

Question 6

Where is the alimentary canal (gut)

Answer 6

Center of diagram

Question 7

What is the purpose of the head?

Answer 7

1. Sensory
2. Ingestion
3. Brain

Question 8

What is the purpose of the thorax?

Answer 8

1. locomotion
2. legs/wings

Question 9

What is the purpose of the abdomen?

Answer 9

Houses organs

Question 10

What does hemolymph transport?

Answer 10

1. Nutrients
2. Hormones
3. Heat
4. Defensive cells

Question 11

What is recombination?

Answer 11

Recombination is when genes from two parent insects combine and mix to varied offspring

Question 12

What is the name of the segmented system of ganglia that is mostly in the brain but connects to nerves and muscles?

Answer 12

Central nervous system

Question 13

What are the three segments of the thorax?

Answer 13

1. Pro
2. Meso
3. Meta

Question 14

What portions of the thorax bear wings?

Answer 14

1. Meso
2. Meta

Question 15

What DOESN’T hemolymph transport?

Answer 15

Hemolymph does not faciliate gas exchange

Question 16

What type of circulatory system do insects have?

Answer 16

Open circulatory system

Question 17

What is the process where insects lay eggs or egg sacs separately from their bodies?

Answer 17

Oviparity

Question 18

What is the process where insects lay eggs or embryos in a casing connected to the main body?

Answer 18

Ovoviviparous
(ex. cockroaches)

Question 19

What is the process where insects give birth to live larvae?

Answer 19

Viviparous
(ex. Tsetse fly)

Question 20

What is the most common sound used by living organisms?

Answer 20

Substrate-born sound