Science 9 Section 2 Review

One advantage of asexual reproduction is that it

• leads to greater variation within a species

• allows offspring to adapt to environmental changes

• leads to long-term bonds between the offspring and the parent

• allows a population to grow substantially over a short period of time

In the flow chart, the stage at which fertilization takes place is labelled

• Process 1

• Process 2

• Process 3

• Process 4

In the flow chart, what happens at process 3?

• Fertilization

• Sex Cell Formation

• Cleavage

• Growth

Which of the following human traits is influenced by the environment (non heritable)?

• Weight

• Blood type

• Colour-blindness

• Ability to roll tongue

A benefit of sexual reproduction is that it

• produces many offspring

• requires specialized structures/cells

• happens quickly

• increases variability

Which of the following heritable human traits cannot be influenced by the environment?

• Height

• Weight

• Skin colour

• Earlobe attachment

__________________ characteristics are passed from generation to generation. Ex. eye colour

_________________ variation refer to differences in characteristics that have a defined form. Ex. you can roll your tongue OR you can't roll your tongue

_________________ variation refers to differences in characteristics that have a range of forms. Ex. skin colour

______________ characteristics are acquired, such as playing an instrument