Answer:
The outer layer (ectoderm)of cell will form the outer components of the body, such as skin, hair, and mammary glands, as well as part of the nervous system.
Answer:
You should use mineral water but you can also use tap water too, as long as you remove chemicals that are potentially toxic to fish.
Explanation:
by examining their geographic range, growth, density, and more!
Explanation:
Answer:
Enzymes bring reactants together so they don't have to expend energy moving about until they collide at random. Enzymes bind both reactant molecules, called the substrate, tightly and specifically, at a site on the enzyme molecule called the active site
Explanation:
Answer:
The two systems are circulatory and endocrine.
Explanation:
circulatory absorbs nutrients and it signals through the endocrine to control the speed of digestion.