3rd grade cells, genetics and evolution

Question 1

How many pea pods did the class measure altogether?

Answer 

Question 2

Inheritance: which statement is true?

• A. Children are always exact copies of one parent.
• B. The language you speak is inherited.
• C. Offspring of plants and animals usually vary from their parents.
• D. If a parent loses a finger, its babies are born without that finger.

Question 3

Traits and the environment: which statement is true?

• A. A plant kept in the dark will pass paleness on to its seeds.
• B. Identical twins always have exactly the same weight.
• C. Plants grown with more light and nutrients usually grow larger.
• D. The environment cannot change any trait.

Question 4

Why is variation useful for a group of living things?

• A. It makes them all the same.
• B. If conditions change, some individuals may survive better than others.
• C. It stops them from growing.
• D. It has no use at all.

Question 5

Is this characteristic inherited or environmental: a suntan?

• A. inherited (from parents)
• B. environmental (from life)

Question 6

A class measured the length of pea pods all picked from the same kind of plant. Which length was most common?

• A. 6 cm
• B. 7 cm
• C. 8 cm
• D. 9 cm
• E. 10 cm

Question 7

Is this trait mostly inherited, or affected by the environment: a pet's weight after overeating?

• A. mostly inherited
• B. affected by the environment

Question 8

Identical twins grow up in different countries. One becomes much more muscular. What best explains this?

• A. Different exercise and diet changed their bodies.
• B. One of them grew an extra bone.
• C. Muscles are inherited only.
• D. They have different parents.

Question 9

Which characteristic depends on both genes and environment?

• A. height
• B. natural eye colour
• C. blood group
• D. a tattoo

Question 10

How many pea pods did the class measure altogether?

Answer 

Question 11

Inheritance: which statement is true?

• A. Characteristics are passed on in genes.
• B. Children are always exact copies of one parent.
• C. The language you speak is inherited.
• D. If a parent loses a finger, its babies are born without that finger.

Question 12

Traits and the environment: which statement is true?

• A. The environment cannot change any trait.
• B. A plant kept in the dark will pass paleness on to its seeds.
• C. Plants grown with more light and nutrients usually grow larger.
• D. Identical twins always have exactly the same weight.

Question 13

Pods from the same kind of pea plant were 6 cm to 10 cm long. What does this show?

• A. They were different kinds of plant.
• B. Living things of the same kind vary.
• C. All pea pods are identical.
• D. The ruler was broken.

Question 14

Is this characteristic inherited or environmental: dyed hair?

• A. inherited (from parents)
• B. environmental (from life)

Question 15

A class measured the length of pea pods all picked from the same kind of plant. Which length was most common?

• A. 6 cm
• B. 7 cm
• C. 8 cm
• D. 9 cm
• E. 10 cm

Question 16

Is this trait mostly inherited, or affected by the environment: natural eye colour?

• A. mostly inherited
• B. affected by the environment