Which of the following is a chemical Change?

Boiling of Water

Melting a cube of ice

A burning candle

Frost forming inside of a freezer

2. Energy is released when a. ADP reacts with a phosphate group to form ATP. b. a phosphate group breaks away from ATP. c. a plant produces carbohydrates. d. a battery is recharged.

A lab technician observes the red blood cells in a blood sample to have surface antigen B. What alleles does the person who provided the blood sample have? A) IAIA or IAi B) IBIB or ii C) IBIB or IBi D) IAIB

A DNA sequence is shown. AAT - CCG - GTG Which sequence best shows the result of a substitution mutation in the DNA?

Which of the following is not a reason that populations display a regular (evenly spaced) distribution? a. territorial behavior b. competition for water c. competition for sunlight d. social behavior

What type of features are created by deposition from a river?

In what way do the membranes of a eukaryotic cell vary? in what way do the membranes of a eukaryotic cell vary? certain proteins are unique to each membrane. only certain membranes are constructed from amphipathic molecules.

In what ways is the inner mitochondrial membrane essential to the coupling of electron transport and ATP synthesis? Could the membrane carry out its function if its lipid bilayer were readily permeable to hydrogen ions (protons) ?

A bacterial cell with which of the following modifications might be resistant to antibiotics such as methicillin?

What happens to air when it heats up

Explain the importance of to the field of genetics