Investigation 6 SG

Question 1

Which statements below are evidence that seeds such as lima beans are living things? (Pick 3)

___ Seeds are the product of sexual reproduction.
___ Lima beans are hard and white until placed in water.
___ A seed has an embryo.
___ Seeds are dormant until placed in a suitable environment.

Answer 1

A seed has an embryo.
Seeds are dormant until placed in a suitable environment.
Seeds are the product of sexual reproduction.

Question 2

Look at the picture and answer the question:

Answer 2

D

Question 3

Describe the role of a pollinator in pollination.

a) A pollinator picks up pollen from the anthers of one plant, and takes it to another plant’s stigma.
b) A pollinator picks up pollen from the stigma of one plant, and takes it to another plant’s anthers.

Answer 3

a) A pollinator picks up pollen from the anthers of one plant, and takes it to another plant’s stigma.

Question 4

Increasing the salinity of soil could _____.

a) affect a plant’s genetic factors
b) keep a seed from germinating

Answer 4

b) keep a seed from germinating

Question 5

What is the primary source of energy for seedlings in the early days of growth?

a) The cotyledons
b) The embryo

Answer 5

a) The cotyledons

Question 6

Wheat is being bred to be more salt tolerant. This means that scientists are experimenting with the wheat’s _____.

a) genetic factors
b) planting factors

Answer 6

a) genetic factors

Question 7

The function of the starred part of the inside of the seed is to _____.

a) attract pollinators
b) provide food for the developing embryo

Answer 7

b) provide food for the developing embryo

Question 8

Fish that live in the ocean have characteristics that allow them to live in salt water. This is
probably due to the fish’s _____.

a) environmental factors
b) genetic factors

Answer 8

b) genetic factors