Movement of cell against concentration gradient is called a. osmosis b. active transport c. diffusion d. passive transport

Which of the following cut flowers emits unusually large amounts of ethylene gas? a. Rose b. Carnation c. Lily d. Chrysanthemum

List four types of micro-organism is high can act as pathogens

Which fact is the basis for using the fossil record as evidence that evolution has taken place? A. In undisturbed layers of rock strata, the older fossils are found in the deeper layers. B.

What is the dating process that doesn't exactly identifies the age of a rock?

What is one disadvantage of fossil fuels? A. They are widely available. B. They are relatively expensive. C. They are easy to use and transport. D. They can cause significant pollution.

Each side of a block measures 5 cm. What is the volume of the block?

The conversion of co2 and h2o into organic compounds using energy from light is called select one: a. glycolysis. b. photosynthesis. c. fermentation. d. cellular respiration.

Which organism in this food chain is a producer? Grass > Grasshopper > Spider > Bird > Bacteria and Fungi Question 1 options: Grasshopper Spider Grass Bird

The vascular pressure that declines from roughly 35 mm hg to about 18 mm hg is the

Robert places six eggs in a pot of boiling water (100°C) and six eggs in a pot with water at 80°C. He keeps the eggs in the water for ten minutes.