Biology 1010 Exam 3 Questions and Correct
Answers
Question 1
What is parthenogenesis?
Correct Answer
the development of an egg into an embryo without fertilization (females can lay
viable eggs without sperm)
Question 2
What is indeterminate growth?
Correct Answer
growth to an undetermined size, throughout life
Question 3
What is commensalism?
Correct Answer
one organism benefits and the other is unaffected
Page 1 of 24
,Question 4
What are protists?
Correct Answer
eukaryotes that could have several nuclei
Question 5
What are diploblasts?
Correct Answer
Organisms having two cellular layers: Endoderm and Ectoderm.
Question 6
What is a notochord?
Correct Answer
a flexible, rod-shaped structure that supports the body of a developing chordate
Question 7
Why are cyanobacteria important?
Correct Answer
They are oxygenic photosynthesizers who likely oxygenated early Earth using
carbon dioxide
Page 2 of 24
, Question 8
What is competition?
Correct Answer
the struggle between organisms to survive as they attempt to use the same limited
resources
Question 9
What is a pathogen
Correct Answer
A microorganism that causes disease
Question 10
What are yeast?
Correct Answer
single celled fungi
Page 3 of 24
Answers
Question 1
What is parthenogenesis?
Correct Answer
the development of an egg into an embryo without fertilization (females can lay
viable eggs without sperm)
Question 2
What is indeterminate growth?
Correct Answer
growth to an undetermined size, throughout life
Question 3
What is commensalism?
Correct Answer
one organism benefits and the other is unaffected
Page 1 of 24
,Question 4
What are protists?
Correct Answer
eukaryotes that could have several nuclei
Question 5
What are diploblasts?
Correct Answer
Organisms having two cellular layers: Endoderm and Ectoderm.
Question 6
What is a notochord?
Correct Answer
a flexible, rod-shaped structure that supports the body of a developing chordate
Question 7
Why are cyanobacteria important?
Correct Answer
They are oxygenic photosynthesizers who likely oxygenated early Earth using
carbon dioxide
Page 2 of 24
, Question 8
What is competition?
Correct Answer
the struggle between organisms to survive as they attempt to use the same limited
resources
Question 9
What is a pathogen
Correct Answer
A microorganism that causes disease
Question 10
What are yeast?
Correct Answer
single celled fungi
Page 3 of 24