How does carbon enter the carbon cycle from the air
Photosynthesis by plants
100
Name three adaptations a penguin has for its habitat
Streamlined body, waterproof feathers, blubber (fat body) for warmth
100
Describe the natality and mortality rate of a population at carrying capacity
Equal
100
Put these events in order from earliest to latest: Photosynthesis, Life on Earth, Big Bang, Formation of Earth, Cambrian Explosion
Big Bang, Formation of Earth, Life on Earth, Photosynthesis, Cambrian Explosion
200
Which trophic level belongs to autotrophs?
First
200
What are the two steps in nitrogen assimilation?
Plants take nitrates from soil, animals eat plants
200
What is a succulent plant?
Desert plant with rubbery leaves to conserve water
200
In exponential growth, what is it called when a population goes above the carrying capacity?
Overshoot
200
Name the Age of Mammals, Age of Fishes, and Age of Dinosaurs
Cenozoic, Paleozoic, Mesozoic
300
Here's a food chain: a bear eats a big fish, the big fish eats a smaller fish, the smaller fish eats an insect, and the insect eats algae. Which animal is the tertiary consumer?
Big fish
300
Which step in the carbon cycle is being increased by humans?
Combustion
300
A harmless species of frog lives in the same area as a very poisonous species of frog. Both frogs are bright orange with black spots. Describe the adaptation that the harmless frog species has.
It wants to look like the poisonous one so other animals will stay away from it and not eat it
300
A population of 300 lions lives in an area. One year the natality rate is 50 and the mortality rate is 100. The next year, 100 lions immigrate and 50 lions emigrate. What is the new population of lions?
300
300
Name the three ingredients in primordial soup
Poisonous gas, water, electricity
400
What is a food web?
Many food chains connected together
400
Which major event on the Cosmic Calendar created all the nitrogen and carbon in the two cycles?
Big Bang
400
Ice ages in the mesozoic era lead to what type of adaptations in the animals?
Mammals - have fur
400
There are two types of mice in a forest. One is white colored and one is black. One day, a snake population that eats mice immigrates to the area, but the snakes are nocturnal. What color will the mouse population be after many years?
Black - all white mice will be eaten because they are visible
400
Where do thermophiles live and how do they make food?
Hydrothermal vents, chemosynthesis
500
An ecosystem contains grass, rabbits, and wolves living at carrying capacity. If rabbits double their natality rate, what will happen to the ecosystem after many years?
1. Grass will decrease, wolves will increase 2. Rabbits run out of food and die 3. Wolves run out of food and die
500
Which type of relationship exists between the rhizobium bacteria and the legumes?
Mutualism: legumes get nitrogen, rhizobium get place to live
500
Describe a mutation/adaptation that a fish in the paleozoic era might have had in order to evolve into dinosaurs that lives on land.
Mutation makes fins that are slightly stronger and allows the fish to crawl onto land. Trait is passed onto offspring and over time, the population evolves to have legs.
500
400 rabbits with short fur live in an area. One year, there is a very very cold winter and 75% of the rabbits die. Is the cold winter a density dependent limiting factor? Draw the growth curve for the rabbits starting in the springtime after the cold winter.
No. S-shaped (start at 100, go to 400)
500
What happened on December 31 of the Cosmic Calendar?