Answer:
all of the above
Explanation:
All the statements are true that is Sweating is an example of positive feedback because when you sweat your body becomes hot and your inner body becomes cool. Shivering is an example of negative feedback because shivering occurs when there is cold in the body and can lead to sickness. The nervous system is responsible for sensing changes in the environment because it is responsible for sensing what's going on in our body.
Answer:
No atoms are created or destroyed in chemical reactions.
Explanation:
Matter cannot be created or destroyed. When two reactants contact each other, a chemical reaction occurs which breaks the bonds between atoms and rearranges them, forming new bonds which transform them into the product. The same amount of atoms exists before and after the reaction.
In the early 1960's, the United States tried to overthrow the communist leader, Fidel Castro. They were unsuccessful in the attempts.
Connective tissues are the tissues that are responsible to connect, support, bind, or to separate out other tissues or organs,that have relatively few cells embedded in an amorphous matrix, often with collagen or other fibers, that includes cartilaginous, fatty, and elastic tissues. Cartilaginous tissues are responsible for the firm, rubbery matrix that provides flexibility. These tissues give shape to the external ear, the larynx (voice box) which is the most easily palpated cartilages in the body, and to the tip of the nose.
