BLG 144 Midterm 1 EXAM QUESTIONS AND
VERIFIED ANSWERS 2026(GRADED A+)
DETAILED ANSWERS!!
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when deleterious or harmful alleles are removed from population
Choose an answer
What is the theory of special
1 purifying selection 2
creation
3 vestigial traits 4 Darwin's theory of natural selection
Don't know?
Terms in this set (94)
, What is the theory of special - all species are independent
creation -life on earth is young-6000 yrs old
-species are immutable
typological thinking based on idea that species are unchanging types
and that variations within species are
unimportant/misleading
great chain of being Aristotle believed that there's a ladder of nature
that orders based on increased size and
complexity (humans are at the top)
Lamark's theory of "change through proposed a theory of evolution that species are
time" and "inheritance of acquired not static but change through time
characters" -always producing larger and more complex or
"BETTER" species
-individual's phenotype changes as challenges in
the environment get passed on to the offspring
(ex. giraffe have begin to have long necks for
eating higher trees and now offspring has long
necks)
Darwin's theory of natural selection -species are not static, they change through time
descent with modification -Darwin proposed that species in the past are
ancestors of species existing today
1. species change through time
2. species are related by common ancestry.
how old is the earth around 3.4-3.6 billion years ago, life was formed
earth per se is about 4.6 billion years old
VERIFIED ANSWERS 2026(GRADED A+)
DETAILED ANSWERS!!
Save
Practice questions for this set
Learn 1 /7 Study with Learn
when deleterious or harmful alleles are removed from population
Choose an answer
What is the theory of special
1 purifying selection 2
creation
3 vestigial traits 4 Darwin's theory of natural selection
Don't know?
Terms in this set (94)
, What is the theory of special - all species are independent
creation -life on earth is young-6000 yrs old
-species are immutable
typological thinking based on idea that species are unchanging types
and that variations within species are
unimportant/misleading
great chain of being Aristotle believed that there's a ladder of nature
that orders based on increased size and
complexity (humans are at the top)
Lamark's theory of "change through proposed a theory of evolution that species are
time" and "inheritance of acquired not static but change through time
characters" -always producing larger and more complex or
"BETTER" species
-individual's phenotype changes as challenges in
the environment get passed on to the offspring
(ex. giraffe have begin to have long necks for
eating higher trees and now offspring has long
necks)
Darwin's theory of natural selection -species are not static, they change through time
descent with modification -Darwin proposed that species in the past are
ancestors of species existing today
1. species change through time
2. species are related by common ancestry.
how old is the earth around 3.4-3.6 billion years ago, life was formed
earth per se is about 4.6 billion years old
