Answer:
tracheae
instead of lungs, insects breathe with a network of tiny tubes called tracheae
Answer: There are three classes. These classes include Calcerea, Desmospongia, and Hexactinellida. They are divided into these classes based mostly on the composition of their spicules and skeletal fibers. (spicules are rod-shaped cellular projections that make up the skeleton of sponges) hope this helps!
Explanation:
They produce two different cells, mitosis produces cells used for growth and repair and each cell is identical to the parent and each other and each contain 46 chromosomes..meiosis produces genetically different daughter cells and there are four cells produced, these cells each contain 23 chromosomes and the cells are used in reproduction
Answer:
D
Explanation:
All of the above. Medical advances, new energy resources, and technological advances are ways that science has benefited society.
