In a food web, the arrow depicts what information?
direction of energy flow or energy transfer from one organism to the other
In a marine ecosystem, how is phytoplankton (producers) beneficial to humans?
they feed the organisms such as fish (consumers) that we eat
Which type of relationship exists when 2 birds live in the same area and eat the same seeds?
competition
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).
What type of relationship exists if a hawk and a snake both eat mice?
competition (for food)
The energy from the sun is transferred to heterotrophs by what means?
indirectly- by eating a producer
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).
Which organism is the base of the food chain and supports the whole ecosystem?
Producers (plants, autotrophs)
Name 3 abiotic factors in the desert.
sand, sunlight, humidity, air, rocks
Plants can grow all year round in which biome because they receive large amounts of precipitation?
Tropical Rainforest
In this aquatic biome, salt and freshwater mix.
Estuary
In this symbiotic relationship, one organism is harmed (the host) and the other benefits at the detriment of the other.
Parasitism (Example: tick that feeds on blood of animals)
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.
What does symbiosis mean?
a long term relationship
This biome is dry and very cold. The coldest in the world. The ground is permanently frozen.