how good or bad something is

a part of your body that can bend because two bones meet there

the process of making an identical copy of an organism or cell

(1958-) an American developmental biologist

a small animal with a long body, short legs, and a tail, which can live in water or on land

to make something from the past exist again in a new form or be experienced again

complicated and advanced in design

the material forming animal or plant cells

any of the long fibers that carry messages between the brain and parts of the body, enabling you to move and feel objects, temperatures, or pain

something important that you succeed in doing by your own efforts

relating to your feelings or how you control them

expected to happen or arrive at a particular time

to try to be more successful or better than someone else who is trying to do the same as you

to succeed in dealing with or controlling a problem, challenge, or obstacle that has been preventing you from achieving something

an idea or set of ideas that is intended to explain something about life or the world, especially an idea that has not yet been proved to be true

the process of growing something or some body part again

a strong human feeling such as love, hate, or anger

relating to medicine and the treatment of disease or injury

the　relationship between the price or cost of doing something and the value of the result of doing so

the organ inside your head that controls how you think, feel, and move

to become less or go down to a lower level

the thick string of nerves enclosed in your spine, by which messages are sent to and from your brain

one of the two organs in your lower back that separate waste products from your blood and make urine

to make something grow again

only with great difficulty or effort; able to accomplish something to a minimally acceptable degreea

to work in the correct or intended way

in spite of the fact that has just been mentioned

connected with one particular thing only

a part of the body, such as the heart or lungs, that has a particular purpose

a type of reptile that has four legs and a long tail

one of several things that influence or cause a situation

a planned way of doing something, especially one that a lot of people know about and use

to officially accept a plan or proposal

to prevent something bad from happening

a small part or area of a machine that you press to make it do something

for each

any of a group of widely distributed, mostly free-living flatworms of the class Turbellaria

the feeling of being happy, expectant, or looking forward to something

the ability to think clearly and make decisions based on reason rather than emotions