NY Regents Energy flow and Symbiotic relationships

Leeches often attach to the tongue of a crocodile and consumes the crocodile's blood for food.

The Egyptian plover is a bird that flied into the mouth of the crocodile and eats the leeches.

The crocodile does not harm the Plover.

The relationship between the Plover and the crocodile is?

• Commensalism

• Parasitism

• Mutualism

• Saprophytism

Leeches often attach to the tongue of a crocodile and consumes the crocodile's blood for food.

The Egyptian plover is a bird that flied into the mouth of the crocodile and eats the leeches.

The crocodile does not harm the Plover.

The relationship between the leech and the crocodile is?

• Commensalism

• Parasitism

• Mutualism

• Saprophytism

Termites live on cellulose, mostly from the dead wood they chew, but they depend on protozoa in their gut to provide the enzymes that can digest the wood.

These protozoa would die outside of the termite, and the termite would starve if it didn't have the protozoa to aid in digestion

What is the relationship between the termite and protozoa?

• Commensalism

• Parasitism

• Mutualism

• Saprophytism

In the case of barnacles and whales, only the barnacles benefit from attaching to the whales, but at no biological cost to the whale.. In this case, attaching to the whales gives the barnacles a stable place to live, a free ride, and access to plenty of food.

What type of relationship is this?

• Commensalism

• Parasitism

• Mutualism

• Saprophytism

Nitrogen fixing bacteria help boost the growth of legume plants (peanuts, pea family) , while the Rhizobia (nitrogen-fixing bacteria) cannot not live without a host-the legume plant.

What type of relationship is this?

• Commensalim

• Parasitism

• Mutualism

• Saprophytism

Tapeworms latch onto the intestines of animals and rob them of the nutrients from the foods that they eat.

What type of relationship is this?

• Commensalism

• Parasitism

• Mutualism

• Saprophytism

When an organism feeds and grows on dead organisms, such as bacteria, fungi, and multicellular plants.

• Commensalism

• Parasitism

• Mutualism

• Saprophytism

Which organisms break down chemical substances in the environment, making these substances available for use by other organisms?

• producers

• decomposers

• herbivores

• carnivores

Tags

NGSS.MS-LS2-3

Which group has the greatest biomass?

• omnivores

• herbivores

• carnivores

• producers

What determines the type of herbivores that live in an ecosystem?

• Type of plants available

• amount of nitrogen in the atmosphere

• number of decomposers present

• amount of oxygen dissolved in ponds and streams

Tags

NGSS.MS-LS2-1