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WorksheetsMod D Unit 2 Test Review
Total questions: 18
Worksheet time: 12mins
If a mutagen changes the genetic structure of a skin cell after birth, which of the following could not occur?
A. The cell replicates, passing the mutation on to many cells in the body.
B. The cell stops functioning because of the mutation and eventually dies.
C. The cell produces a new protein because of the mutation, resulting in a new trait.
D. The cell passes the mutation on to the skin cells of offspring born after the mutation.
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?
A. If cold weather increases the rate of mutations in the genome, sparrows can mutate into larger organisms.
B. If larger sparrows cannot breed with smaller sparrows, they become isolated and form a new species.
C. If smaller sparrows cannot survive as well in cold weather, only sparrows with genes for large bodies will survive.
D. If sparrows shiver in the cold and gain muscle mass from the shivering, their body size will increase.
Which statement about the picture is true?
A. Tanzanian elephants saw a steady decrease over a span of 12 years.
B. The elephant population has decreased more than 85 percent in less than 40 years.
C. The number of elephant deaths exceeded that of births between 1986 and 1989.
D. The death rate of elephants increased and then decreased between 1989 and 1994.
The following picture shows what?
There are a large population of colors between dull and bright.
There large populations of dull but not bright.
There are large populations of both dull and bright.
There are no male birds.
How would this distribution change if a predator that specifically targets green butterflies entered the ecosystem?
What is in the smallest to largest order?
protein-nucleotide-triplet
nucleotide-triplet-amino acid-protein
DNA-gene-base
protein-amino acid-triplet
Speciation can be caused from geographic barriers.
True
False
Which one causes more genetic diversity?
Asexual reproduction
Sexual reproduction
Scientists have observed that anoles use dewlaps(throat skin) to identify members of the same species. How did this variation in dewlaps likely arise?
B. An individual anole never extended his dewlap, and as a result, his offspring were born without dewlaps.
C. After the lizard population moved to a new environment, they changed their dewlaps to match their new surroundings.
A. The variation in dewlap appearance existed in the original population.
D. A random genetic mutation occurred in an individual; it was beneficial and was selected for over multiple generations.
Green anoles are well camouflaged in trees. Brown anoles are well camouflaged near ponds. Long-legged anoles can run faster than short-legged anoles when avoiding predators and hunting prey. Populations of green and brown anoles move into an area that has more trees than the previous habitat, fewer ponds, and more predators. Which species of anole will most likely survive best?
Green short legged
Green long legged
Brown short legged
Brown long legged
Members of the same species can reproduce successfully in nature.
True
False
Which factor/s contributes to a mass-extinction events.
Global Climate Change
Moving land masses
Volcanic Eruptions
All of the above
Speciation occurs when two populations begin to look different from each other.
True
False
Members of the same species are always identical.
True
False
It is difficult to identify species in organisms that reproduce asexually.
True
False
Which picture shows a population in which individuals with the most common traits are susceptible to a fatal disease.
Which graph shows a population in which the fastest prey can escape from very fast predators.
If a nucleotide is removed from a gene, the order of nucleotides will shift, resulting in new 1. __________ being coded for. These will combine to form a different 2. __________
gene, DNA
nucleotide, amino acid
amino acid, protein
protein, gene
