WorksheetsLife Science State Test Quizizz Review
Total questions: 40
Worksheet time: 27mins
How many chromosomes do human cells have?
46
23
2
44
Identify a purpose of meiosis. Select all that apply.
Produce gametes for reproduction.
Repair damaged or dead cells.
Reduce the chromosome number.
Growth of organisms from birth to adulthood.
What are homologous chromosomes?
Pairs of chromosomes with different genes on each.
Pairs of chromosomes with the same genes on each.
Pairs of chromosomes with no genes.
Pairs of chromosomes with the wrong genes on each.
T - tall and t = short
In the Punnett square, what belongs in the missing square?
tt
Tt
TT
Question
Labradoodles and cockapoos are different varieties of domestic dogs that can be purchased from dog breeders.
directional selection
stabilizing selection
disruptive selection
artificial selection
sexual selection
Which of the following can cause mass extinctions? Choose 3
Volcanoes and earthquakes
climate change
sea levels rising
asteroids
Which of these describes a likely reason why a species would become extinct after a major environmental change?
The environmental change means fewer predators are around.
There are more homes for the species in the changed environment.
The change in the environment opens new resources with less competition.
There are not enough members of the species born with a trait necessary to survive in the new environment.
Which of these could cause a mass extinction?
a year-long drought
a week long blizzard
eutrophication of a pond (so many nutrients enter the pond that the plant growth takes over)
a major change in global climate
House sparrows were introduced to the cold climates of North America in 1852. Since that time, the bodies of sparrows in the north became larger than those of southern sparrows. What is the most likely cause of the change in northern sparrow body size?
If cold weather increases the rate of mutations in the genome, sparrows can mutate into longer organisms.
If larger sparrows cannot breed with smaller sparrows, they become isolated and form a new species.
If smaller sparrows cannot survive as well in cold weather, only sparrows with genes for large bodies will survive.
If sparrows shiver in the cold and gain muscle mass from the shivering, their body size will increase.
The picture shows a/an ___________
homologous structure
vestigial structure
What is this an example of?
Homologous structure
Analogous structure
Vestigial organs
Functional adaption
