You have to find the similarities and differences of intrusive and extrusive igneous rocks for the first question. The second one requires you to find out coarse-grained rocks are formed, the third is asking how igneous rocks are classified according to its structure, like the construction of the rock(what it is made up of). The fourth is asking you how fine grained-igneous rocks are made basically, the fifth is asking you how do igneous rocks with that glossy fine stain, how are they made.
The for different types of movements are:
1. Vertical movement
2. Horizontal movement
3. Swinging movement
4. Circular movement.
c). The human heart is about the size of an adult's fist.
A fist-sized organ, the heart circulates blood throughout your body. It serves as your circulatory system's main organ.
Four major muscle-driven chambers make up your heart; they are each powered by electrical impulses. Your nervous system and brain control how your heart beats.
The main organ of your circulatory system, a web of blood vessels that circulates blood throughout your body, is your heart. It also interacts with other bodily systems to regulate your blood pressure and heart rate. Your lifestyle, family history, and medical history are all factors that determine how well your heart functions.
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Answer:
Enzymes are proteins that act as biological catalysts, Enzymes speed up chemical reactions that take place in cells.
Explanation: