Topics 1-4

Question 1

What is variation

Answer 1

Differences that separate organisms from each other

Question 2

Example of a variation

Answer 2

Black bear compared to a polar bear

Question 3

Behavioral adaptation

Answer 3

Include owls hunting at night

Migration of birds from the topics to their nesting sites in the far north

Question 4

What is a niche

Answer 4

Organisms role in their environment

Question 5

What are the two main parts of a niche

Answer 5

Habitat-where it lives

What is does interactions in its environment

Question 6

What is biodiversity

Answer 6

Number of varieties of different organisms

Question 7

Binary fission

Answer 7

Asexual

Whet cell duplicates it’s contents,the splitting of a single-celled organism into two new organisms approx.equal in size

Question 8

Spore

Answer 8

Asexual single celled from which an individual offspring develops plants,algae,fungi

Question 9

Vegetative growth

Answer 9

Asexual the growing tips of roots and stems contain area of rapidly reproducing cells called meristem

Question 10

Budding

Answer 10

Asexual process in which a bud forms on an organism,grows and eventually breaks away to become a new organism independent of the parent

Question 11

Zygospores

Answer 11

Sexual

Contain genetic information from two different mating types

Question 12

Bacterial conjugation

Answer 12

Sexual Direct transfer of genetic material (DNA) from one bacterial cell to another

Question 13

Plants

Answer 13

Sexual plants have male and female parts to reproduce sexually.through pollination where pollen containing sperm travels to the female cone

Question 14

Animals

Answer 14

Sexual Fertilization occurs when an egg and sperm cell the female and male gametes join to form a new cell

Question 15

Continuous variation

Answer 15

For any species is something that gradually changes over a range of time
Ex.-height
-weight
-foot length

Question 16

Discrete variation

Answer 16

Characteristics that have a definite form with limited number of possibilities

Ex.-gender

• Blood Group
• Eye colour
• Hairline

Question 17

Dominant

Answer 17

When mixed the dominant trait will show up in the offspring

The dominate is powerful

Question 18

Recessive

Answer 18

Shows up in offspring only if both parents passed on the genes for the trait
When mixed with genes for a dominant trait a recessive trait doesn’t show up in the offspring

Question 19

Galapagos Finches

Answer 19

13 in total on Galapagos island
And found 1 more on cocos island
Small ground finch small beak slightly curved so they can pick up seeds from the ground rather than a small tree finch beak different for grabbing insects is easier