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Phylogenetic Concepts and Evolutionary Relationships

Phylogenetic Concepts and Evolutionary Relationships

Assessment

Interactive Video

Biology

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explores different types of evolution: divergent, parallel, and convergent. Divergent evolution involves species splitting into new species, while parallel evolution sees similar traits in related species. Convergent evolution results in similar traits in unrelated species. The video also discusses homologous and analogous structures, phylogenetic trees, and the concept of species trees, emphasizing that phylogenetic trees are hypotheses about evolutionary relationships.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary mechanism through which divergent evolution occurs?

Artificial selection

Environmental adaptation

Mutation and genetic recombination

Genetic drift and natural selection

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In parallel evolution, similar traits develop in species that are:

Related but from different clades

Identical in genetic makeup

From the same species

Unrelated and from different ancestors

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of convergent evolution?

Wings of birds and bats

Fins of fish and whales

Legs of mammals and reptiles

Leaves of trees and shrubs

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are homologous structures?

Structures that are morphologically similar due to shared ancestry

Structures with similar functions but different origins

Structures that are identical in all species

Structures that have evolved independently

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Plesiomorphic character states are:

Present in the most recent common ancestor but lost in some descendants

Newly evolved traits in all descendants

Traits that have no evolutionary significance

Traits that are identical in all species

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Analogous structures are a result of:

Artificial selection

Parallel evolution

Convergent evolution

Divergent evolution

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is homoplasy?

The loss of ancestral traits in descendants

The genetic recombination of traits

The independent evolution of similar traits in unrelated lineages

The presence of similar traits due to shared ancestry

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