Sperm production takes place in the

Basal metabolism is the largest component of total energy expenditure. true or fase

Streams, rivers, ponds, lakes, and wetlands are all kinds of ecosystems.

All topsoil was destroyed after a volcanic eruption. Which process does this series of photographs best describe? Climate change Pollution Primary succession

The development of a true coelom between the ectoderm and the mesoderm represents a true evolutionary advance over the pseudocoelomate body plan. true or false.

What substances present in semen (not in the sperm itself) allow sperm to successfully make their long journey through the "hostile environment of the vagina," into the uterus and into the Fallopian tubes?

What is the formula for cellular respiration?

Climates are defined by temperature and precipitation. true or false, answer in next minute

The pericytes used in these experiments were probably in which phase of the cell cycle

The neurons are the structural and functional units of the nervous system. a. True b. False

Which statement best describes a scientific question? It must be based on a hypothesis. It must be supported by data. It must be testable. It must be original.