The parasitic roundworm anchors itself to the wall of the intestine adn causes diseases to the organisms.

Spiders create their webs on stems and trunks of plants

A mouse is captured and eaten by an owl

Two angelfish are struggling for the best territory in a small fishbowl

Cheetahs and lions feed on the same prey

Insects get necatr from flowers. They also transfer the pollen that gets stuck in their bodies to another flower

Orchids perch on sturdier plants. They cause no harm to the host plant. They benefit simply from being exposed to sunlight

The waste plant sap produced by aphids are used by ants for nutrition. The ants portect the aphids from parasites

An oyster attaches itself to a mangrove. They oyester has a place to live, but the mangrove is unharmed

Many bacteria live in teh human intestines. These bacteria feed on the food in our guts without harming us. And they help us digest our food

The sea lamprey uses its oral dist to attach itself to a larger fish, bores a hole though the fish's flesh, & sucks its blood

A lion devours a deer

Chimpanzees fight to achieve supremacy in the tribe

The shrimp digs to burrow itself and the goby fish. In case of danger, the goby fish touches the shrimp with its tail to warn it.

Dodder plants have root like structures that penetrate the vascular bundles of other plants to get nutrients

Hermit crabs use gastropod's shells to protect their bodies without being harmed

A remora fish attaches itself to sharks. When the shark eats, it eats the scraps. The shark doesn't harm the remora fish.

Amoeba in humans causes infection that leads to liver abscesses and dysentery

Ticks attach firmly to the skin of other animals to draw blood

The Nile crocodile, with it's mouth open, permits the Egyptian plover bird to feed on any leeches attached to its gum

A fly is trapped in a spider's web

Ten tomato plants are grown in one small pot with limited amounts of soil

The territorial clownfish lives in sea anemones. They protect each other for their predators