Answer:
B. An egg cell and a sperm cell unite.
Explanation:
Enzymes are important for allowing and speeding up reactions in an organism. They do this by orienting chemical compounds and or substances so that they can easily break and form new products easily, the activation energy is lowered upon the use of such enzymes.
Basically bicorn is a type of corn that feeds to animals. Sican is a type of sea creature that roams the bottom of the ocean
Answer:
cardiovascular and blood vessals
Explanation:
Skin is the Largest barrier agaisnt Pathogens which include Bacteria which cause infections.