Answer:
The corect answer is some of the reactants were spilled.
Explanation:
Before the initiation of the reaction the total mass of both reactants is 15.0 grams and after the reaction the net mass of product is grams 12.4grams.
This happens because during the reaction some reactant molecules were spilled which ultimately leads to decrease the mass of the reactant molecule.
The decrease in the amount of the reactant equals with amount of product formed.
Answer:
D
Explanation:
because if you ubderstand how there traits are you get more info from them.
Answer: Chondroitin and collagen fibers
Explanation:
Cartilage is made of the specialized cells which is known as chndrocytes. These chondrocytes produce large amount of extracellular matrix which is composed of collagen fibers, elastin fibers and proteoglycan.
There are no blood vessels in the cartilage to supply nutrients to the chrondrocytes.
The cartilage is flexible and provides strength to the long bones. It is rubber like padding that covers the end of the bones.
It is found in rib cage, nose, ear, bronchial tubes et cetera.
Answer:
a vein, artery and capillary
Reproductive isolation
further information: the condition in which there are barriers to successful interbreeding between individuals of different species in the same community. phylogenies. evolutionary trees that evaluate which groups of organisms may be closely related to one another.