U2. Symbiotic Relationships in Nature

What is symbiosis?

• A relationship where organisms compete for resources.

• A relationship where two or more different types of organisms live closely together and interact for survival.

• A relationship where one organism hunts and eats another.

• A relationship where organisms avoid interaction.

In the mutualistic relationship between aphids and ants, what do the ants provide for the aphids?

• A sugary substance called honeydew.

• Protection from predators and parasites.

• A place to live on their bodies.

• Nutrients from photosynthesis.

How do bromeliad plants benefit from their relationship with trees?

• They receive nutrients directly from the tree's roots.

• They provide the tree with extra water.

• They use the tree for support and draw water and nutrients from the air and moisture.

• They protect the tree from parasites.

What is the unique way Cordyceps fungus reproduces after infiltrating an insect host?

• It causes the insect to lay eggs in other nests.

• It directs the host to a cool, moist location where spores erupt through its head.

• It feeds on the insect's honeydew.

• It provides the insect with sunscreen.

Determine what type of symbiotic relationship Eddie Brock and the Venom symbiote shared based on the clues below: 

• 1. Venom preyed on Brock's weaknesses.

• 2. Venom fed on Eddie's adrenaline and other neurochemicals.

• 3. Venom took control of Eddie's body while he slept, hurting him physically. 

• Mutualistic
• Commensalistic
• Parasitic