Carrying Capacity/Biodiversity
Cycling of Matter and Energy
Ecosystem Stability
Evidence of Evolution
CER
100
It can be defined as a species' average population size in a particular habitat. The species population size is limited by environmental factors like adequate food, shelter, water, and mates. If these needs are not met, the population will decrease until the resource rebounds.
What is carrying capacity and how does it impact a population?
100
The accumulation of compounds such as toxins in organisms as we go up the food chain.
What is biomagnification?
100
Identify the trophic level of the fox and the sparrow hawk are in?
What are apex predator?
100
1.) DNA Fingerprinting
2.) Vestigial Structures
3.) Cladograms
4.) Embryological development
5.) Homologous/ Analogous Structures
6.) Fossil record
What are the 6 pieces of evidence to prove common ancestry?
100
Analyze the diagram below to predict and explain what happens to the snail population.
The wide snails population will increase. The narrow snails are being eaten by the predator and leaving the wide shells to survive. Population of the wide shells increase due to its competitive advantage in size/shape. Wide shell snails are surviving and passing their genes to their offspring.
200
Using the graph answers the following questions.
Why can’t the deer population continue to increase forever?
What are limiting factors; such as water, food, oxygen, and space dictates how many organisms can live in an ecosystem?
200
Make a food chain with 5 organisms starting w/plants.
Plants< Herbivorous insects <Predaceous insects< Toads<Snake
Plants<Herbivorous insects<Spiders<Insectivorous birds <Foxes
Plants<Herbivorous insects<Spiders<Insectivorous birds <Snake
Plants<Herbivorous insects<Spiders<Insectivorous birds <Hawks and Owls
200
Identify the trophic level the dead leaves and the berries are in?
What are producers?
200
These limbs provide evidence of a common ancestry because they…
What are homologous structures?
200
Does this population trend of peppered moths fit the natural selection model? Why or why not?
Yes, this trend fits the natural selection model of evolution. "Survival of the fittest" describes the 4 key components of natural selection: which is A) inheritable traits, B) environmental change, C) competitive advantage, D) Survive to reproduce. The population of the dark moth is decreasing while the light moth population is increasing. The competitive advantage is in the color of the moth which increases their chance of survival and they are able to pass this gene on to their offspring. Thus, supporting the increase in population of light moths.
300
Using the graph answers the following questions.
What is the carrying capacity for the deer population?
What is a population of about 80 deer?
300
On average, only about 10 percent of energy stored as biomass in a trophic level is passed from one level to the next.
What is "the 10 percent rule"?
300
Identify the trophic level the blackbird and the shrew are in?
What are secondary consumers?
300
Explain how vestigial structures relates to a common ancestry.
Seeing the same structures being passed down even though they are no longer used can show evidence of common ancestry when looking at these similar structures from past organisms.
300
Ryan believes that giraffes have long necks because the ones with long necks were able to reach the food, and those with short necks could not and died. The long necked giraffes reproduced, and soon all of the giraffes had long necks.
Ryan thinks like Darwin or Lamarck? Why?
What is Darwin? "Survival of the fittest" describes the 4 key components of natural selection: which is A) inheritable traits, B) environmental change, C) competitive advantage, D) Survive to reproduce. Long neck giraffes survived with the competitive advantage of their necks reaching high hanging food and passed their genes off to their offspring.
400
It is the variety of life in particular habitat or ecosystem.
What is biodiversity?
400
Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.
What is why not all energy transfer to each trophic level?
400
If Aphids decrease, give me two organisms and how they will be affected.
Less food for hoverfly larva and wren. Due to limited food the population of wren and hoverfly larva will decrease.
400
What characteristics do turtles have? Use the cladogram to justify your answer.
Turtles have amniotic eggs, four walking legs, jaws, and vertebral column.
400
There are two types of rabbits: those that strictly eat grass and those that strictly eat berries and flowers. A drought occurs one year, and the plants have difficulty producing any extras (flowers, berries, etc). They can only try and keep themselves green. The rabbits have had babies all year long but due to the drought, many have starved to death.
a. Which rabbit will natural selection select AGAINST? FOR?
Natural selection will select against the rabbit that strictly eats flowers and berries. Due to the drought that occurs annually, the plants have a hard time producing flowers and berries. This will lead to the rabbits that eat only flowers and berries starving to death. This will cause the population of these rabbits to decline.
500
Factors defined as non-living components or attributes of a system that usually bears physical and chemical traits but no living traits.
What is abiotic factors?
500
Make a food chain with 3 organisms starting w/Berry. Include the energy percentage in each level.
What is berry (100%) -->thrush (10%) -->sparrowhawk (1%)?
500
How can I decrease the blackbird population? Give me two ways.
Increase the predators (Ex: fox and sparrow hawk) in the environment or decrease the population of earthworms in the ecosystem as food source.
500
According to the cladogram, Which species are more closely related: Turtles and Salamanders or Turtles and Lamprey?
The turtle and salamander have the most recent common ancestors or descendent; according to the root that connects the two species.
500
Describe what is happening in the picture above using the four components of natural selection.
There are two variations of mice; light and dark fur. The mice are observed in two different locations. The mice with the competitive advantage are able to stay camouflaged from predators in each location. The gray mice are surviving and reproducing in Location A, passing on the trait of being gray to their offspring. This creates a population that is mostly light fur mice in Location A. The dark mice are surviving and reproducing in Location B, passing on the trait of being dark to their offspring. This creates a population that is mostly dark fur mice in Location B.