classification

Question 1

Give the list of hierarchical classification levels…

Answer 1

domain
kindom
phylem
class
order
family
genus
species

Question 2

Why is the offsping of interbreeding often infertile?

Answer 2

Parents with differing numbers of chromosomes form a hybrid with an uneven number of chromosomes

This odd number can not be split by meiosis.

Question 3

species definition

Answer 3

a group of organisms able to breed with one another and produce fertile offspring.

Question 4

fact about binomial nomaclature

Answer 4

no two species have the same binomial name. Although some may have the same species name, it doesn’t make them the same thing it just means that maybe the same person named them.

Question 5

why do scientists classify organisms? (3)

Answer 5

• to identify species ( using a clear and defined system)
• to find evolutionary links
• to predict characteristics ( because organisms in the same group are likely to have similar characteristics)

Question 6

taxonomic groups

Answer 6

the groups in which organisms were organised.

Question 7

phylogeny

Answer 7

evolutionary relationships between organisms

Question 8

what does phylogeny reflect

Answer 8

the common ancestors of organisms

Question 9

linnean system vs phylogeny tree

Answer 9

the linnean system requires strict grouping, but phylogeny produces a continuous tree.