Life
When can a chicken egg be considered living?
When it is fertilized!
Name the three nutrient cycles we learned in this class.
Water cycle, carbon cycle, and oxygen cycle.
What is the main source of energy for life on Earth?
The Sun!
What is carrying capacity?
The biggest size a population can be that an ecosystem can support.
Name the four types of Macromolecules
What is homeostasis?
A steady-state (balance).
What does the term "transpiration" mean?
It's when water is released from the leaves of a plant and returns to the atmosphere as water vapor.
10% of the energy from the level below is able to move up the pyramid.
How are "populations" different from "species"?
Species are all the same type of organism. Populations are the same species IN A GIVEN AREA.
What are "metabolic functions"?
These are things such as eating, moving, breathing, your organs pumping, etc. Think "LIVING".
Name an example of how human bodies act in order to return to homeostasis.
Ex. Sweating or shivering
What is the difference between a producer and a consumer?
A producer makes it's own sugar to make energy and consumers have to eat in order to gain sugar to make energy.
What is the difference between an herbivore, a carnivore, and an omnivore?
Herbivores only eat plants.
Carnivores only eat meat.
Omnivores can eat both plants and meat.
Why is there a lag period at the beginning of logistical and exponential growth?
The population is too small to grow drastically, so it will grow slowly at first (lag phase) before it grows quickly.
What is the difference between osmosis and diffusion?
Diffusion is the movement of molecules across a membrane, from areas of high concentration to low concentration. Osmosis is the diffusion of water.
Does each individual need to have all 8 characteristics of life in order to be considered living?
No! But the species needs to have all 8 characteristics.
Is there ever a point in the nutrient cycles where the carbon, water, or oxygen gets stuck/can't move to another location?
No! The cycles always have a way to move in and out of different areas.
What happens to the 90% of energy that does not move up the trophic pyramid?
90% of the energy at each level is lost to metabolic functions and heat.
What is the difference between density dependent and density independent limiting factors?
Density Dependent - Will impact populations differently based on the size of the population.
Density Independent - Will impact populations REGARDLESS of the size of the population.
How is the human population growing?
It is growing exponentially!
Name all 8 characteristics of life.
1. Cells
2. Organization
3. Reproduction
4. Response to Stimuli
5. Homestasis
6. Store and Process Energy
7. Grow and Develop
8. Evolution and Adaptations
Draw a picture with a plant, an animal, and carbon in the atmosphere. Draw the ways that carbon would move throughout that environment.
Should have:
1. Cellular Respiration from plant to carbon
2. Cellular Respiration from animal to carbon
3. Photosynthesis from carbon to plant
4. Consumption (Eating) from plant to animal
Draw me a four level trophic pyramid. You do not need to draw pictures in each level, but you need to label each level with the TYPE of organism goes in each level.
Top: Tertiary Consumers
Second: Secondary Consumers
Third: Primary Consumers
Bottom: Producers
List 3 density dependent factors and 3 density independent factors.
Density Dependent: Predators, food, shelter, disease.
Density Independent: Natural Disasters, water, temperature, nutrients.
What is the difference between biotic and abiotic factors?
Abiotic: Non-living.