When electrons are lost, a

When electrons are gained, a

ion is formed,

lon is formed

Which of the following statements is true? All animals in the Chordata phylum have dorsal nerve cords. There are far more vertebrates on earth than invertebrates. Sponges are not true animals because they can perform photosynthesis.

Tge type of tissue that covers the body lines internal sufaces and forms glands is

Which of the following incorrectly matches the term with its location? DNA is found in a chromosome. Chromosomes are found in the nucleus of a cell. Genes are located in a nucleotide. Nitrogen bases are located in the central rungs of a DNA ladder.

Differences between members of the same species are called a. predators. b. selections. c. traits. d. variations.

What are two ways excess nitrogen is added to the nitrogen cycle

The land area that supplies water to a river system is called a divide. true or false

How could antibacterial resistance rapidly spread in a bacterial population being treated with an antibiotic?

What happens to energy that isn't transferred to the next trophic levels?

Is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and gradually moves away from the ridge.

What are reverse-transcribing viruses?