What factors can be both abiotic and biotic?

Soil is an organism

In times of stress, activation of the sympathetic nervous system results in the adrenal gland secreting hormones that tend to:

The idea that eurkaryotes developed from one larger prokaryote

Describe the different Cnidaria life cycles.

Which of the following hypotheses is BEST supported by observing cancer cells in a culture A. The cancer cells do not exhibit density dependent inhabition B.

Explain the importance of autotrophic organisms with respect to energy flow and nutrient cycling in ecosystems.

Large populations of tortoises inhabited the Galapagos Islands before humans. When humans settled on the islands and introduced goats, the number of tortoises declined. What is most likely the explanation for the decrease in the tortoise population?

Dendrites are A. the conduction zone of a nerve cell. B. the input zone of a nerve cell. C. a type of glial cell. D. small interneurons.

The process at Wheeled Coach Ambulance plant is a repetitive process supported by A. work cells. B. an assembly line. C. craftsmen working alone. D. high degree of robotic automation.

What is the primary function of the respiratory system? Question 5 options: 1) Transportation of blood 2) Oxygenate blood 3) Absorption of nutrients 4) None of the above