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Worksheets3-Week Review (5th 6-weeks) - NatSel/DichKey/DiCross
Total questions: 102
Worksheet time: 2hrs 23mins
Gradualism means Natural Selection would normally happen over many generations and very
slowly
quickly
in space
beyond time
Punctuated Equilibrium implies catastrophic events caused natural selection to speed up due to great environmental changes.
True
False
According to natural selection, light colored tree trunks would favor
light colored moths
dark colored moths
red colored moths
red and light colored moths
Genetic diversity in a species makes long term survival of some members
impossible
improvable
more likely
less likely
Over the years, white mice became extinct and darker mice survived. This is
stabilizing selection
directional selection
disruptive selection
due to exercise
A physical trait favored by an environmental change can be called an
adaptation
extinction
possibility
mutation
Natural Selection is driven by a change in the environment and survival of the
Earth
Fastest
Fittest
Biggest
Average phenotypes are favored in the environment, while extremes have lower survival rates.
seasonal selection
distruptive selection
directional selection
stabilizing selection
Two populations of the same species are separated by land barriers like rivers or mountains.
geographical isolation
temporal isolation
adaptive ratiation
behavioral isolaton
Two populations of the same species do not have the same mating rituals or signals.
geographical isolation
temporal isolation
adaptive ratiation
behavioral isolaton
All the possible gene combinations in a population.
allele
gene pool
genome
mitosis
The frequency that single genes (alleles) for a trait appear in a population.
Genome
Gene frequency
Genetic Drift
Population Frequency
Changes in the gene pool over time.
Mitosis
Genetic Variation
Gene Pool
Genetic Drift
Isolated small populations speed up genetic drift.
Gene Pool
Mitosis
Speciation
Founders Effect
Organisms of the same species can no longer interbreed therefore creating two species.
Gene Pool
Genetic Drift
Gene Frequency
Speciation
Severe population reduction reduces the gene pool
and increases the rate of genetic drift. Woolly mammoths became extinct. Elephants survived.
Gene Pool
Bottleneck Effect
Founders Effect
Gene Frequency
arachnids and insects?
A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger.
The student uses the dichotomous key below to identify it.
1. a) Abdomen segmented.............go to 2
b) Abdomen not segmented ......go to 4
2. a) Abdomen with tail....................go to 3
b) Abdomen without tail...............go to 5
3. a) Tail with stinger..........................Scorpion
b) Tail without stinger.....................Whip scorpion
4. a) Legs longer than body.............Daddy Long Legs
b) Legs not longer than body……….Wind scorpion
5. a) Covered with spines .......................Mite
b) Few spines.....................................Tick
Whip Scorpion
Daddy Long Legs
Mite
Tick
Which leaf is shown in the drawing?
Magnolia
Redbud
Sweetgum
None of the above
Which of the paired statements could be used to tell the difference between the two insects using a dichotomous key?
Has 6 legs
Has 8 legs
Large hind legs
Small hind legs
2 pairs of spots on wing cover
3 pairs of spots on wing cover
Antennae absent
Antennae present
Which shark is the picture of?
Cow Shark
Great White Shark
Hammerhead Shark
Saw Shark
What species of tree is the fruit from?
Fraxinus americana
Franinux negundo
Acer platanoides
Acer negundo
Use the dichotomous key to identify this white wildflower
Starflower
Chickweed
Common Strawberry
Bowman's root
What is insect B?
Bee
Ladybug
Firefly
Dragonfly
On the cladogram, which organism is the closest relative of the parrot?
Frog
Hare
Caiman
Parrot
All the animals to the right of the salamander would have the common characteristic of...
Fur
Claws or nails
Lungs
Jaws
Which is the newest trait?
Amniotic egg
Walking legs
Jaws
Hair
According to this cladogram, sharks are MOST closely related to which organism?
Amphibians
Ray finned fish
Crocodiles
Birds
What characteristic do all the organisms on this cladogram share?
Being bi-pedal & having language
Complex brains
Fully binocular vision
Partial binocular vision & opposable thumbs
Which trait do only humans have, according to the cladogram?
jaws
mammary glands & hair
terrestrial during all life stages
bipedal & opposable thumbs
What is this a picture of?
Pedigree
Cladogram
Family Tree
Oak Tree
What characteristic distinguishes amphibians from birds and reptiles?
Amniotic egg
Egg shells
Vertebrae
Hair/fur
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
What is the correct phenotype ratio when crossing two heterozygous parents in a dihybrid cross?
100% heterozygous
1:2:1
3:1
9:3:3:1
r= green
Which color is recessive?
What is considered to be the phenotype?
Double stranded chromosomes
The physical trait that is expressed
The combination of genes
All of the genetic information
What is another term for heterozygous?
Hybrid
Mixed
Different
Same
