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WorksheetsUnit 11 review
Total questions: 16
Worksheet time: 10mins
This event decreased the population, what mechanism of evolution is being observed?
Mutation
gene flow
genetic drift
random mating
How does this image support the theory of evolution?
shows how a landmass separates after species evolve
biogeography, possible explanation of how organisms evolved separately
Original species are the most suited for their environment
species evolve because of genetic drift
Fish lay thousands of eggs every season. Which condition of natural selection does this represent?
nonrandom mating
struggle to survive
overproduction of offspring
inherited variations
what was the significance of the miller-urey experiment in explaining the origin of life on Earth?
lightening causes organic matter to breakdown amino acids, 1st molecules on Earth
biological molecules can form from simple molecules available on earth 3.5 Billion years ago
life started outside of Earth since life can only come from life
raw materials produce compounds that make first life forms
This experiment by Francisco Redi in 1668 helped disprove the theory of spontaneous generation and lead to which conclusion?
Oxygen is needed to form life
life is made spontaneously
life only forms in warm environments
only living things can make other living things
How did Endosymbiosis helped us understand how complex organisms emerged from simple organisms ?
explains why prokaryotes don't possess a nucleus
explains how prokaryotes and eukaryotes use oxygen to survive
explains why bacteria and organelles are similar in size
explains how life could have originated from a single cell
The chart shows how modern horses evolved over the last 55 million years, highlighting the bones of their legs found within rock layers. The chart is accurate because it shows the oldest fossils at the bottom and younger fossils at the top.
true
false
What trend was observed in hominid evolution based on fossil evidence?
Tools were being used less and less
Size of brain decreased
size of jaw decreased
hominids started walking on all fours instead of 2 limbs
What was a success adaptation for hominids?
a smaller jaw led to more tool use
smaller brain led to more social language
bigger jaw led to clearer words and better communication
bigger brain led to language and communication
in the ocean, crabs with larger claws have a better chance of reproducing offspring than crabs with small claws. What will be the likely outcome after several generations?
percentage of small clawed crabs will increase
percentage of large clawed crabs will increase
small clawed crabs will mutate into large clawed crabs
small clawed crabs will grow larger claws
Which species is the most likely to go extinct first?
A
B
C
D
Which species has the best chance of survival?
A
B
C
D
What is nucleic acid made of?
Amino Acids
Carbon, Hydrogen, and Oxygen
Sugar, nitrogen bases, and a phosphate group
Helium and Carbon
Proteins have many functions in the body, what's its main one?
Stores DNA
Makes the cell membrane
stores energy long term
Catalist (speeds up reactions)
who does evolution affect?
Individual organisms over long periods of time
a population over long periods of time
Individual organisms within their lifetime
a population within 1 generation
when 2 separate fish populations of the same species are put into the same body of water they likely begin reproducing with each other, blending the genes of the 2 separate populations, increasing genetic diversity. this is an example of?
genetic drift
gene flow
mutations
natural selection
