The weight of a substance is defined as its mass divided by its volume.

What is humus? A) A term to describe soil that is not fertile. B) The broken down remains of plants and animals. C) A type of soil that cannot retain water for long. D) A mixture of man-made articles such as plastic and glass.

Which of the life functions do viruses preform?

Match the following terms and descriptions. 1. cloning breeding two different species to make a new individual 2. hybridization most controversial method of genetic engineering 3. recombinant DNA breeding organisms because of beneficial traits 4.

During photosynthesis, specific pigments absorb light energy, which is then used to fuel the building of sugar molecules.

The nasal cavity is divided into left and right portions by the

What is the largest component of the metabolism?

Complete the following sentences to identify the process that ice, water, or water vapor may undergo if either the temperature or the pressure is increased.

Anton Van Leeuwenhoek was the first to refer to cells as what?

A particular species of fish were spilt by the formation of the isthmus of Panama a long time ago. The fish developed changed in their genes to adapt to the new environment and became two different species. What is this process called

Complete the following sentences to describe the differences between protostome and deuterostome development. The place the sentences in chronological order to describe embryonic development. Choices may be used more than once.