Answer:
Birds’ feathers are designed to be light but very strong, flexible but very tough. Although it looks like feathers grow all over a bird, they actually grow in specific areas called feather tracks. In between the feather tracks are down feathers. This keeps the body weight down.
Feathers are made of a tough and flexible material called keratin. The spine down the middle, called the shaft, is hollow. The vanes are on the two halves of the feather. They are made of thousands of branches called barbs. Because there are many spaces between these barbs, a feather has as much air as matter.
Explanation:
Answer:
They considered it to be a success because had it been it was a failure they would not have come together for the rational choice theory.
Explanation:
controlled Trail:" is a study in which people are allocated at random (by chance alone) to receive one of several clinical interventions".
Rational Choice theory: "Rational choice theory assumes that individuals are rational actors using rational information to try to actively maximize their advantage in any situation and therefore consistently trying to minimize their losses"
Answer:a.Anorexia nervosa
Explanation:
Anorexia nervosa, which is commonly called anorexia is an eating disorder that makes a person have an extreme fear of gaining weight such that they start to extremely restrict their food intake and they have abnormal desire to be thin.
The person may be extremely thin but they see themselves as overweight, but in reality they are underweight. They will vomit , take laxatives and use any dieting method, even when they have lost a lot of weight they still can't see it.
They may also over exercise , lose weight but still feel overweight.
This is a life threatening disorder that is driven by emotional issues because a person usually feels like being thin is equal to being worthy.
Symptoms
A person starve themselves constantly and they have unrealistic weight loss goals. An abnormal fear of gaining weight even though the person may already be too thin.
If you go to collage with a butcher lot degree if that’s a choice
Based on the fact that Group A received treatment, they are the <u>experimental group. </u>
<h3>What is the experimental group?</h3>
- This group is tested for the variable in a research.
- In medicinal research, they receive the medicine being tested.
As Group A were the ones to receive the treatment for severe depression, we can conclude that they were the experimental group.
Find out more on experimental groups at brainly.com/question/22675982.
