Question 1 (5 points) 1
Individual differences with a genetic basis lead to ______ in successive generations. Question 1 options:
variation normalization extinction Save Question 2 (5 points) 2
What does natural selection result in? Question 2 options:
Increased genetic variation
A population that is better adapted to a future environment
A population that is adapted to its current environment
An increase in the size of a population Save Question 3 (5 points) 3
The word "theory" in theory of evolution is best replaced by ________. Question 3 options:
fact hypothesis
idea alternate explanation Save
Question 4 (5 points) 4
The wing of a bird and the arm of a human are examples of ________ structures. Question 4 options:
vestigial molecular homologous analogous Save Question 5 (5 points) 5
"Survival of the fittest," or the reproductive advantage in individuals who inherit traits that help it adapt to a changing environment was something Darwin called ________. Question 5 options:
natural selection
adaptation
inheritance Save Question 6 (5 points) 6
Which of the following is not capable of evolving? Question 6 options:
A rose bush
The collective feral cats of a city
A population of asexually reproducing fruit flies
A population of fruit flies
All the HIV in a single patient
Question 7 (5 points) 7
_____________ is the primary pressure on species to change over time. Question 7 options:
Natural selection Mutation Adaptation Save
Question 8 (5 points) 8
Based on the following phylogenetic tree, which of the following conclusions are *NOT* correct? Each letter represents a hypothetical species. Question 8 options:
A)
A and E share a common ancestor