1. Define the term biodiversity and explain why biodiversity is necessary for a helpful ecosystem. 2. List 3 things that humans have done to decrease biodiversity

Explanation:

Biodiversity is a combination of various cultures and religions. It helps our ecosystem because together with other cultures and countries we can come up with different and various methods of helping our ecosystem. Like biodiesel and electric cars instead of our emissions polluting the air we breath.

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.