Answer:
Explanation:
"Animals, plants, and fungi often have many different organs whose different functions are integrated, enabling multicellular organisms to maintain themselves, grow, and reproduce. Two or more tissues that work together to get a job done form an organ. A group of organs that works together to perform a certain job is an organ system. Organ systems found in plants, animals, and other multicellular organisms allow these organisms to function more efficiently."
Really? A. lol (no trees = unstable environment)
Answer:
Animal organs and organ systems constantly adjust to internal and external changes through a process called homeostasis (“steady state”). These changes might be in the level of glucose or calcium in blood or in external temperatures. Homeostasis means to maintain dynamic equilibrium in the body
1) a five carbon ribose sugar
2) a phosphate molecule
3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil
Robert Hooke used a compound microscope to look at thin slices of cork.
