Which stimulus causes a responding plant to demonstrate phototropism?

direction of light

intensity of light

length of the day

time of day

Leaves with carotenoid pigment turn during the fall.

Is Down Syndrome more common in a certain group of people? How common is it?

A client is receiving total parenteral nutrition (tpn) through a central venous access device. the nurse discovers that the tpn bag is empty and the next bag has not been received yet from the pharmacy.

How many phosphate groups are in one molecule of ADP

Which of the following describes the role that enzymes play in the process of metabolism? A: Enzymes carry the genetic instructions required for a cell to initiate metabolism.

The ovaries are located in the ___ cavity.

Transport of materials into a cell against a concentration gradient, from low to high, requires A) water. B) energy. Eliminate C) osmosis. D) a passageway.

As ocean water in a tide pool warms and evaporates, the remaining water becomes a. cooler. b. saltier. c. calmer. d. darker.

Drake is comparing time people spend playing games on Xbox versus Playstation. In his study, individuals ages 10 - 15 are given Xbox's and individuals ages 16 - 25 are given Playstations.

How do scientists obtain knowledge about the world? Check all that apply.