Evolution and Biodiversity
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Evidence for Evolution
SubtopicEvidence for Evolution under Evolution and Biodiversity for Grade 11 IB.
Preview questions (no answers)
- 1.
Which factor is essential for evolution by natural selection to occur in a population?
A.Variation
B.Acquired traits
C.Cloning
D.A stable environment with no changes
- 2.
Which of the following is required for a fossil to form?
A.The organism must be eaten by predators
B.The organism must be buried quickly in sediment
C.The organism must live in a desert
D.The organism must have soft tissues only
- 3.
In a population of beetles, some are green and some are brown. If the ground is brown, which beetles have a survival advantage?
A.The green beetles
B.The brown beetles
C.Both have the same advantage
D.Neither can survive
Download the worksheet for Evolution and Biodiversity - Evidence for Evolution to practice offline. It includes additional chapter-level practice questions.
Natural Selection
SubtopicNatural Selection under Evolution and Biodiversity for Grade 11 IB.
Preview questions (no answers)
- 1.
Which is the most accurate summary of the mechanism of natural selection?
A.Variation -> Competition -> Survival of the best adapted -> Reproduction
B.Reproduction -> Mutation -> Immediate change in species -> Stability
C.Stability -> Overproduction -> No variation -> Extinction
D.Competition -> Mutation -> Adaptation -> Individual change
- 2.
Why does natural selection lead to better-adapted populations?
A.Better-adapted individuals have a higher probability of reproducing
B.Poorly adapted individuals choose not to reproduce
C.The environment rewards hard-working individuals
D.All individuals in a population become better adapted simultaneously
- 3.
Which of the following statements about mutations is correct?
A.Mutations are always harmful to the organism
B.Mutations are always beneficial to the organism
C.Mutations occur randomly in the genome
D.Mutations only occur when the organism needs to adapt
Download the worksheet for Evolution and Biodiversity - Natural Selection to practice offline. It includes additional chapter-level practice questions.
Classification of Biodiversity
SubtopicClassification of Biodiversity under Evolution and Biodiversity for Grade 11 IB.
Preview questions (no answers)
- 1.
Which classification level is used to distinguish between different types of lions and tigers within the genus Panthera?
A.Kingdom
B.Phylum
C.Family
D.Species
- 2.
If two organisms are in the same Order, they must also be in the same:
A.Family
B.Genus
C.Class
D.Species
- 3.
Which phylum contains animals with bilateral symmetry and a body cavity, but no segments?
A.Porifera
B.Cnidaria
C.Platyhelminthes
D.Mollusca
Download the worksheet for Evolution and Biodiversity - Classification of Biodiversity to practice offline. It includes additional chapter-level practice questions.
Cladistics
SubtopicCladistics under Evolution and Biodiversity for Grade 11 IB.
Preview questions (no answers)
- 1.
Which branch of biology focuses on classifying organisms into clades?
A.Ecology
B.Cladistics
C.Physiology
D.Cytology
- 2.
What can be deduced if two species have zero differences in their Cytochrome c amino acid sequences?
A.They are extremely closely related
B.They are extremely distantly related
C.They have no common ancestor
D.They belong to different domains
- 3.
If two organisms are in the same clade, they must share:
A.The same habitat
B.A common ancestor
C.The same lifespan
D.The same predators
Download the worksheet for Evolution and Biodiversity - Cladistics to practice offline. It includes additional chapter-level practice questions.