Why do large, top predators (tertiary consumers) need to eat more than a primary consumer?
The amount of energy they receive from what they eat is much less than that of a primary consumer.
Which type of consumer is primarily located in trophic levels 3 & 4?
carnivore
________________________ is an interaction between abiotic and biotic factors in an area.
Ecosystem
What does symbiosis mean?
a long term relationship
Energy is tranferred from a produer to a consumer how?
When the consumer eats the producer or the primary consumer or secondary consumer. Through what it eats.
If 2 organisms share a burrow to live in. Which type of relationship exists between them.
Mutualism
What is the difference between a habitat and niche?
Habitat is where the organism lives (gets water, food, shelter, space). Niche is the role the organism plays within their environment (producer, consumer).
Name an adaptation an organism would need to survive in the desert.
conserve water, adapted kidneys to need less water, lighter fur, large ears for circulation, thin outer coat, deep roots
Plants can grow all year round in which biome because they receive large amounts of precipitation?
Tropical Rainforest
What is the carrying capacity of an ecosystem?
The number of organisms that the ecosystem can support and all their needs will be met. The line on the graph where it levels out and stays straight.
The ultimate source of energy for all organisms is the?
sun
Which type of relationship exists if a wolf eats a squirrel?
Predator-prey
Name a top predator that would be at the top of an energy pyramid.
Any large carnivore...hawk, coyote, wolf (Apex predator)
What is the role of a producer in an ecosystem?
to use energy from the sun to make food
This biome is dry and very cold. The coldest in the world. The ground is permanently frozen.
Tundra
In a population graph...you can expect the population of predators to show an increase when the population of prey shows a ________________.
decrease (more predators to eat, less prey available and vise versa)
Name 3 abiotic factors in the desert.
sand, sunlight, humidity, air, rocks
Which type of relationship exists when 2 birds live in the same area and eat the same seeds?
competition
In this aquatic biome, salt and freshwater mix.
Estuary
Which organism is the base of the food chain and supports the whole ecosystem?
Producers (plants, autotrophs)
This biome has a wet and dry season, warm all year and has scattered clumps of trees.
Savanna
In a food web, the arrow depicts what information?
direction of energy flow or energy transfer from one organism to the other
The energy from the sun is transferred to heterotrophs by what means?
indirectly- by eating a producer
Food chain...grasses-insects-bird-snake-large bird. What would happen if all the insects died out?
The number of birds (what eats the insects) would decrease
This biome allows for very little to no growth. Only lichen and moss can survive the harsh environment (cold desert)..
Tundra
Describe the symbiotic relationship of commensalism.
In commensalism one organism benefits from the relationship and the other is unaffected (doesn't care, isn't harmed or doesn't benefit).
This biome is where we live and is characterized by leaves that change color in the Fall, mild weather and 4 seasons.
Temperate Deciduous Forest
This biome is characterized by humid, wet weather, near the equator and very biodiverse.
Tropical Rainforest
In what trophic level on the energy pyramid do you find a primary consumer?
the second
In a balanced ecosystem, which trophic level has the highest population? The least?