The organ system that is responsible for the physical and chemical breakdown of food and for the absorption, processing, and release of digestive products.

While hiking in a forest, you notice an unusual plant growing on the branches of a tree. What will help you to determine if this plant is epiphytic or parasitic?

A) If the plant is green, it is epiphytic; if not, then it is parasitic. B) The root of an epiphytic plant will be in the soil, but a parasitic plant will grow from the trunk of a tree. C) The roots of a parasitic plant will penetrate under the bark into the tree xylem, and the roots of epiphytic plant will not. D) The epiphytic plant will have large water collecting leaves, and the parasitic plant will not.

A blood sample taken from a patient fighting an infection is expected to show

a) reduced white blood cell count b) elevated white blood cell count c) elevated red blood cell count d)reduced red blood cell count

What is the rain shadow effect and how can it lead to the formation of deserts?

What will be an ideal response?

Which of the following statements best compares the pedicel and receptacle?

A. The pedicel and receptacle are identical, merely two names for the same structure. B. The pedicel is the tip of the stem bearing the flower and the receptacle is the base of the flower. C. The receptacle is the part of the flower that receives the pollen whereas the pedicel relays sperm to the ovule. D. The pedicel is a reproductive part of a flower and the receptacle is a vegetative part. E. The pedicel is haploid and the receptacle is diploid.