CWB Test

Question 1

What does metamorphosis mean?

Answer 1

Metamorphosis is a process some organisms go through as they grow and develop, involving major changes in the anatomy of the organism.

Question 2

What is the first stage of metamorphosis and give a brief description.

Answer 2

Egg: the mother lays her eggs on the underneath of a leaf, stay in this stage for about 4-8 days, 1 mm in length, oval shaped

Question 3

What is the second stage of metamorphosis and give a brief description.

Answer 3

Larva: 5 larval stages, molt in between each stage, eats a lot of leaves, produce silk, in this stage about 10-12 days

Question 4

What is the third stage of metamorphosis and give a brief description.

Answer 4

Pupa: Encapsulated in a chrysalis, major changes occur, in this stage about 6 days

Question 5

What is the fourth stage of metamorphosis and give a brief description.

Answer 5

Adult: In this stage for 3 weeks, eat nectar using the proboscis concentration is on mating /reproduction

Question 6

What are some common characteristics of insects that can be found in the Cabbage White Butterfly?

Answer 6

Three body parts (head, thorax, abdomen), 6 legs, wings, 2 antennae, exoskeleton

Question 7

What phylum does the Cabbage White Butterfly belong to?

Answer 7

Anthropods

Question 8

What are at least two common characteristics of any member of the phylum you listed above?

Answer 8

Jointed legs and protective exoskeleton

Question 9

Chrysalis

Answer 9

Hard outer casing that surrounds the CWB during the pupa stage

Question 10

Exoskeleton

Answer 10

Hard outer protective covering on the outside of an insect

Question 11

Entemologist

Answer 11

Scientist that studies insects

Question 12

Instar

Answer 12

A stage or phase, used to describe the larval stages

Question 13

Molting

Answer 13

The shedding of the outer exoskeleton during times of growth

Question 14

Frass

Answer 14

The excrement of the CWB

Question 15

Glucosides

Answer 15

Chemicals made by the plant to make them unappetizing to insects

Question 16

Why is it a good idea for scientists to understand the eating habits of insects, especially the Cabbage White Butterfly?

Answer 16

So they can learn about foods the insects will prefer and ways to protect crops from insects.

Question 17

How can you explain the relationship between what a CWB eats and the color of its frass?

Answer 17

The frass is green because the insects do not digest the cell walls of the plant cells they eat. Instead they suck the nutrients out from the inside of the cell and leave the cell walls to be excreted.

Question 18

How does the CWB detect a food source? What are two main cues?

Answer 18

Taste and Odor

Question 19

Why do insects molt?

Answer 19

Because the exoskeletons can not grow along with the insect

Question 20

How can you tell the difference between a female and a male CWB?

Answer 20

Male larvae have two kidney shaped structures seen through their bodies. Male butterflies have one dot on their wings, female butterflies have two dots on their wings. Female butterflies fly in a zig zag pattern , while male butterflies fly in a straight line.

Question 21

What order does the CWB belong too?

Answer 21

Lepidoptera

Question 22

What are four things that are very prominent within larvae?

Answer 22

Eating, Growing, Molting, and Excreting

Question 23

What types of foods do the CWB larvae prefer?

Answer 23

Radish leaves in the mustard, or cabbage family

Question 24

Where are the silk glands in a larva and what is the silk used for?

Answer 24

In their head; Used to attach themselves to plant parts

Question 25

What ingredients in nectar serve as the main sources of food for butterflies?

Answer 25

Sugar, water, minerals, and other nutrients.

Question 26

What does the proboscis take in?

Answer 26

Nutrients and Water