More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described.
A person can be anxious when making an important decision when faced with a problem at work. Types of disorders are;
1. Generalized anxiety disorder symptoms include
a) irritability
b) muscle tension
c)Being easily fatigued.
2. Panic disorder symptoms include
a)feeling of being out of control during a panic attack.
b)Repeated and sudden attack of intense fear.
3. Social anxiety symptoms
a)Having a very hard time making friends.
b)feelings of self-conscious in front of other people
c)Staying away from where other people are.
the correct answer is up and down
Answer:
Heterotrophs
Explanation:
Autotrophs are organisms that are able to use a source of energy such as sunlight, to produce their own food. Heterotrophs cannot produce their own food and must rely on the foods they ingest for energy.
