10th grade human body and health

Example

Why are reflexes useful?

1. Reflexes skip conscious thought, so we react quickly to danger.
2. So the answer is: They are fast and automatic, protecting the body from harm

Answer: They are fast and automatic, protecting the body from harm

Example

In a control system, what role do these play: a gland releasing a hormone?

1. Effectors (muscles or glands) carry out the response.
2. So the answer is: effector

Answer: effector

Example

Which organ releases insulin?

1. The pancreas monitors blood glucose and releases insulin or glucagon.
2. So the answer is: pancreas

Answer: pancreas

Example

When does this happen: shivering?

1. When too cold, the body reduces heat loss and releases more heat.
2. So the answer is: response when too cold

Answer: response when too cold

Example

In a ruler-drop test, a student's reaction times were 0.19 s, 0.2 s, 0.23 s. What is the mean reaction time, in s? Give 2 decimal places.

1. (0.19 + 0.2 + 0.23) ÷ 3 = 0.207
2. So the answer is: 0.21 s

Answer: 0.21 s

Example

Which gland releases testosterone?

1. The testes release testosterone.
2. So the answer is: testes

Answer: testes