If a keystone species is removed the whole ecosystem will collapse because it relies on that one species.
The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. The primary organs of the respiratory system are the lungs, which carry out this exchange of gases as we breathe. The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Answer:
The correct answer is - statement - Question 3 leads to a hypothesis that can be tested.
Explanation:
A scientific question is a question that can be answered by logic and reasoning with the help of a hypothesis that can be tested and analyzed by the scientific experient and scientific method.
One can use testing and experimentation to answer the question, survivability of a mouse depend on the color of the mouse is questions based on scientific ideas.
So, supernatural, morality, opinions can not be the base of the scientific questions.
C) The viewer's eye
I had biology last year and i passed it with a A+ and i know everything about microscopes and such.
Answer:
d.) all of the above
changing and separating the location of continents
