Which statement is true of producers?

a

They produce most of the carbon dioxide in ecosystems.

b

They provide most of the energy in ecosystems.

c

They fix most of the nitrogen in ecosystems.

d

They consume most of the biomass in ecosystems.

Temperature receptors that signify intense heat when they are activated

Which force is responsible for waves and surface currents

Choose all that apply below to DNA: double helix takes the original code out of the nucleus and translate it into proteins contains the original code to make proteins contains thymine contains uracil contains guanine single strand helix contains

Is a prostist cell eukaryotic or prokaryotic

which of the following statements about of matter is true? a. a gas has a definite volume but not a definite shape. b. a liquid does not have a definite volume or a definite shape. c.

What is the mass of an atom that has 4 protons, 5 neutrons and 4 electrons? 5 8 9 13

Which of the following is one role of RNA polymerase during transcription? to switch uracil with thymine on the exposed gene to build a molecule of mRNA to break down an already existing protein to produce a start sequence

What is diluvial water

What disease can occur when the pancreas is not working properly?

Which of these objects are malleable? Check all that apply. (A) tin fork and knife from a camping set (B) antique ceramic vase (C) steel pole fence post (D) marble sculpture (E) glass tabletop (F) copper coin