Final exam practice test

What is NOT a requirement for Hardy-Weinberg equilibrium?

a) No mutation
b) No migration
c) A small population size
d) Random mating

c) A small population size

What is the function of xylem in plants?

a) Transporting sugars
b) Transporting water and minerals
c) Photosynthesis
d) Reproductive support

b) Transporting water and minerals

In which group would you find organisms with dikaryotic cells?

a) Animals
b) Fungi
c) Protists
d) Plants

b) Fungi

Which prezygotic isolation mechanism involves differences in mating times?

a) Behavioral isolation
b) Temporal isolation
c) Mechanical isolation
d) Gametic isolation

b) Temporal isolation

What is the purpose of alternation of generations in plants?

a) To prevent mutation
b) To ensure diversity in both haploid and diploid stages
c) To produce spores only
d) To facilitate pollination

b) To ensure diversity in both haploid and diploid stages

Which prokaryotic structure is responsible for motility?

a) Pili
b) Capsule
c) Flagella
d) Ribosome

c) Flagella

Primary endosymbiosis refers to:

a) The engulfing of one prokaryote by another.
b) The engulfing of a eukaryote by a prokaryote.
c) A symbiotic relationship between two eukaryotes.
d) The engulfing of a chloroplast by a eukaryote.

a) The engulfing of one prokaryote by another.

In a phylogenetic tree, which of the following represents a shared ancestor?

a) Node
b) Branch
c) Leaf
d) Root

a) Node

Which of these is NOT a characteristic of gymnosperms?

a) Naked seeds
b) Double fertilization
c) Cone-bearing reproductive structures
d) Wind pollination

b) Double fertilization

What role do mycorrhizae play in ecosystems?

a) Photosynthesis
b) Nitrogen fixation
c) Decomposing organic matter
d) Forming symbiotic relationships with plant roots

d) Forming symbiotic relationships with plant roots

Which feature distinguishes deuterostomes from protostomes?

a) Symmetry
b) Body cavity formation
c) Blastopore developing into an anus
d) Presence of a notochord

c) Blastopore developing into an anus

Which animal group exhibits radial symmetry?

a) Arthropods
b) Cnidarians
c) Mollusks
d) Mammals

b) Cnidarians

The 'Out-of-Africa' hypothesis states that:

a) Homo sapiens evolved in multiple regions simultaneously.
b) Homo sapiens migrated out of Africa and replaced other hominin populations.
c) Hominins originated in Europe and spread globally.
d) Genetic drift caused the extinction of Neanderthals.

b) Homo sapiens migrated out of Africa and replaced other hominin populations.

What is the defining feature of chordates?

a) Bilateral symmetry
b) Exoskeleton
c) Dorsal, hollow nerve cord
d) Radial symmetry

c) Dorsal, hollow nerve cord

Which group of vertebrates is characterized by the presence of feathers?

a) Mammals
b) Reptiles
c) Amphibians
d) Birds

d) Birds