Firstly species around the world are constantly dying, therefore having an exact number is impossible. Also there are countless may species that haven’t been identified or died before we could even identify them. But to answer you question you would have 2 more species if you added 2 more to the collection.
Answer:
This is the answer of your question .
Answer: the mantle B
Explanation: Largest layer resulting in biggest mass.
Answer: They make sure that the body's pH, glucose, and iron are all at their proper levels.
Explanation:
Answer:Two layers of smooth muscle surround the seminal gland, an inner circular layer and an outer longitudinal layer.
Explanation: Hope it helps!!!