Communities

A relationship between two species where one benefits while the other is harmed.

• Mutualism
• Commensalism
• Parasitism
• Naturalism

The crocodile and bird have a _______________ relationship.  The crocodile benefits by having its teeth cleaned.  The bird benefits by gaining food and protection.  Both animals benefit from this relationship.

• parasitism
• predator and prey
• mutualism
• commensalism

Tags

NGSS.MS-LS2-2

Which of the following symbiotic relationships is considered parasitic?

• Ticks feeding on a dog
• Bees transporting pollen from flowers
• Pilotfish swimming under sharks
• Birds eating the insects fromo the back of hippo

Which of these describes a mutually beneficial relationship between two organisms?

• A dog with worms in its intestine
• A turtle and a snail that both eat grass live in a river
• A honeybee pollinating a plant and receiving nectar for food
• A small fish attached to a shark, eating tiny pieces of the shark's food as it floats

Barnacles create home sites by attaching themselves to whales.  The whale is unaffected.  

• commensalism
• mutualism
• predation
• laziness

Tags

NGSS.MS-LS2-2

The ecological niches of three bird species are shown in the diagram. What is the advantage of each bird species having a different niche?

• As more birds feed higher in the tree, available energy increases.
• More abiotic resources are available for each bird.
• Predators are less likely to feed on birds in a variety of locations.
• There is less competition for food.

Tags

NGSS.MS-LS2-1

What term describes the range of conditions that an organism can endure and survive in?

• Habitat

• Niche

• Microclimate

• Tolerance

Tags

NGSS.MS-LS4-4

In this photo, two lions are fighting for a resource. What type of competition is this?

• Interspecific competition

• Intraspecific competition

This photo is showing the same ecosystem in 2 scenarios: one with the sea otter and one without the sea otter. In the ecosystem without the sea otter, the ecosystem dynamics are completely changed. What term best describes the sea otter?

• Invasive species

• Producer

• Prey

• Keystone species

Many different organisms are competing for the zebra as food. What type of competition is this?

• Intraspecific competition

• Interspecific competition

Tags

NGSS.MS-LS2-1