Read the scenario and match the symbiotic relationship. commensalism

parasitism

mutualism

1.
Nitrogen-fixing bacteria get a place to live and food in the roots of plants while helping the plant

2.
Bromeliads are plants that live in the tall trees in the rainforest. The tree is not harmed by them.

3.
Ticks can attach to the skin of humans or other mammals. The ticks feed on the blood to grow.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

All of the following are part of the biosphere except

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?