Bio Unit 1&2 Exam

Question 1

heritable characteristics

Answer 1

genetics passed down from parents ex. eye color

Question 2

non heritable characteristics

Answer 2

genetics are not passed down from parents ex. knowing how to play the piano

Question 3

discrete variation

Answer 3

either / or

ex. blue or brown eyes

Question 4

continuous variation

Answer 4

range of forms not one or the other

ex. height or weight

Question 5

asexual reproduction

Answer 5

one parent with identical offspring

Question 6

sexual reproduction

Answer 6

mix of characteristics, not identical

Question 7

advantages of asexual and sexual reproduction

Answer 7

asexual
-lots of offspring

sexual
-better chance of survival

Question 8

disadvantages of asexual and sexual reproduction

Answer 8

asexual
-not a great chance of survival because they are the same

sexual
-not many offspring

Question 9

binary fission

Answer 9

cell splits in two which produces two identical individuals

Question 10

budding

Answer 10

parent produce a small bud/ smaller version of the parent itself

Question 11

spores

Answer 11

produced by division of cells

Question 12

gametes

Answer 12

cell with one role of joining another gamete during reproduction

Question 13

union of sperm and egg process

Answer 13

fertilization occurs

• zygote is formed
• divides into two cells
• cell division repeats
• continued cell division results in a new multi cellular life form ( embryo )