What is a similarity between a tulip and a crocodile? a tulip and a crocodile

A function of both of their outer coverings is to reduce water loss.
In both the tulip and crocodile the male reproductive organ is the testes.
The tulip and crocodile both have internal skeletons that support them.
The outer coverings of the tulip and crocodile both protect the organism.

How many atoms are in 2 moles of phosphorus

Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.

Amatch has about 21 milligrams of red phosphorus coating the tip. how many atoms of phosphorus is this?