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WorksheetsUnit 4
Total questions: 167
Worksheet time: 3hrs 10mins
Why is genetic drift not a type of natural selection?
It's random; not due to advantages that the individual has
It's due to the environment, rather than chromosomal changes
Humans are involved, making genetic drift artificial selection
What is the only way to create brand new alleles in an isolated population?
Mutation
Natural selection
Genetic drift
Nonrandom mating
In order to have sexual selection occur, which of these must happen?
Nonrandom mating
Genetic drift
Gene flow
Nondisjunction
Binary fission
Male peacocks have beautiful blue and green plumage. However, this coloration makes them easier for tigers to hunt and kill. Why might they have these colors?
Sexual preference by female peacocks
Genetic drift randomly killed off all brown peacocks
Peacocks mated with parrots a long time ago
There is no reason - it's a horrible mutation with no advantage
A volcano explodes and destroys half of an island. Any creature that happened to be on the north part of the island is now dead. This has changed the allele frequencies randomly. This is probably...
Genetic drift
Gene flow
Natural selection
Volcanic mutation
Which of these can change allele frequencies in a population?
Sexual selection
Genetic drift
Gene flow
Natural selection
All of these can change allele frequencies
If the allele for long fur gives individuals an advantage, what is likely to occur over time?
The frequency of that allele will increase
The frequency of that allele with decrease
Mutations can no longer affect that gene
What is this image depicting?
Gene flow
Nonrandom mating
Genetic drift
Sexual selection
Temperatures start rising in an environment with rabbits. What is a reasonable prediction for what happens to the allele for long, warm fur?
Becomes less frequent in the population
It is mutated by the changing temperatures
Switches to its back-up mode of scales
Long fur individuals war with short fur individuals
In genetic drift, the allele frequencies in a gene pool change because of
mutations
genetic equilibrium
natural selection
chance
Red blood cells have a higher ratio of phospholipid to proteins than other cell types in your body. Because of this, what will happen at a lower rate in blood cells?
Shivering is the body's response to:
too much food
extreme thirst
reduced body temperature
increased body temperature
Horns, claws, quills, and stingers are physical adaptations that are used for:
defense
movement
food gathering
obtaining resources
A porcupine has sharp quills. Why would a porcupine need this adaptation?
to keep warm
to cover its skin
to protect itself
to kill its prey
The arctic fox and snowshoe hare develop a white coat of fur during the winter months. What statement best describes this behavioral response?
The color of the fur will attract a mate
White fur allows the animals to reflect light and stay warm
It becomes colder during the winter, so these animals need more fur to stay warm
Snow falls during the winter and the white fur will camouflage the animals
make seeds
They have long stems buried in mud.
They lose their leaves in winter.
Predator population lags behind prey population because:
Increase in predators leads to decrease in prey
Increase in predators leads to increase in prey
Increase in predators leads to decrease in producers
* Hummingbirds feed on nectar from flowers.
* Flowers are pollinated by hummingbirds as they move from flower to flower.
*Snapping Shrimp have poor and depend on their goby fish roommate to give the danger signal when predators come and guide them
back home if they wander too far.
* Goby fish who don't have a place to hide are quickly eaten. They find a Snapping Shrimp roommate who digs a hole for both to live in.
*The tick lives on dog and feeds on its blood and tissue.
* The dog gets skin irritation and can pick up diseases carried by tick.
* The Red-Chested cuckoo birds find an unattended robin nest, push out the robin eggs, and lay their eggs in the robin’s nest, and leave.
* Robin babies die and robin parents feed and take care of the cuckoo babies.
*Mycorrhizal fungi invade and live in or among roots cells of many plants. The plant provides nutrients to the fungi.
*The Mycorrhizal fungi help the host plant absorb inorganic nitrogen and phosphorus from the soil. Some mycorrhizal fungi also secrete antibiotics which may help protect their host from invasion by parasitic fungi and bacteria.
* Mycorrhizal fungi invade and live in or among roots cells of many plants. The plant provides nutrients to the fungi.
* The Mycorrhizal fungi help the host plant absorb inorganic nitrogen and phosphorus from the soil. Some mycorrhizal fungi also secrete antibiotics which may help protect their host from invasion by parasitic fungi and bacteria.
*Remora use suckers to attach temporarily to large marine animals such as sharks, manta rays, whales, turtles, or large fish.
*The shark provides free transportation, protection, and dropped food and feces which the remora feeds on. The host is not injured.
*Fungi form lichens by living in a close relationship with an algae. The fungus provides a protective home for the algae, and gathers mineral nutrients from rainwater and from dissolving the rock underneath.
*The algae gathers energy from the sun using photosynthesis. Both organisms share their nutrients with each other.
*Honeyguide birds find a bee hive, then chatter loudly to attract the Honey badger. They fly toward the hive making sure the badger is following.
*Upon arrival at the bee hive, the badger tears open the hive and feasts on the honey. Then the Honeyguide bird feeds on the remaining wax and larvae.
* Skunk Cabbage plants attract flies in cool weather by making heat and provide food to the flies that come.
* Flies move from one Skunk Cabbage plant to the next feeding and transferring pollen as they go.
*Kudzu vines grow by climbing, and wrapping around trees.
*Kundzu covered trees die as they are smothered and break under the weight of the growing Kudzu vines.
*Hermit crabs find shells left by snails that have died and move in.
* Snails die and leave behind their shells.
Individuals can not evolve.
