The four bases of DNA are Guanine, Adenine, Cytosine and Thymine. Adenine and Thymine bond, as do Cytosine and Guanine.
<span>d. skeletal muscles and sensory receptors
The nervous system is a body system responsible for passing and regulating chemical messages and electrical impulses throughout the body for control, movement and responding.
The somatic nervous system is part of the nervous system that functions for voluntary movement. </span>
Science focus on how our world and universe function, how things occur, why things happen the way they do, etc.
And the fact of science having many different fields is why we divide science into various studies but most importantly into 3 major fields of study which are natural, formal and social sciences.
Natural - focuses on the understanding of our environment and living organisms.
Formal - focuses on the understanding of the logical part of our world, and of concrete things if thought in a certain way.
Social - focuses on the study on the relations of human beings with each other and with their environment, on human behaviour.
Hope it helped,
Happy homework/ study/ exam!
Can you send it to me cuz I can’t see really good the picture
