Which of the following statements best describes a macromolecule?
a macromolecule is made up of dna and has a double helix shape.
a macromolecule is made of carbon, hydrogen, oxygen, and nitrogen and is in a ring like or linear structure.
a macromolecule is a polymer with a high molecular mass and includes four main groups: carbohydrates, lipids, proteins, and nucleic acids.
a macromolecule is a small particle that retains the physical properties of an element.

What is the difference between bacterial infections and viral infections?

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen