I need help with these

How might scientists' knowledge of atoms and molecules help them with medical discoveries and products such as self-healing plastic skin?

Which of the following refers to the elapsed time to respond to stimulus, such as responding while driving a car or catching a ball?
A.
Agility
B.
Power
C.
Coordination
D.
Reaction time

Which of these contributes to heart disease and stroke? (multiple choice answer)

Unsaturated fat
Bulimia
Saturated fat
Cholesterol

a warning sign of quackery includes
a. offering instant results
b. advertisements that make you laugh
c. not containing a secret formula
d. all of the above
HELP​

The human body is composed of approximately 60% of water.

A calculated movement or skill performed for a given situation in attempt to gain advantage over the competition is the definition of what?
A.
Tactical movement
B.
Drill
C.
Situation awareness
D.
Scrimmage

i need help plz and thank you


Alta is a home health care aide. She usually visits elderly patients who are recovering from recent surgery. Alta not only checks on how they are healing but also performs tasks like helping them bathe or eat a meal. Explain why Alta’s job is important and what qualities you think that Alta needs as she performs her tasks.​

What are the steps taken when a player commits a violation in football?

An individual having a history of migraine headaches would most likely be diagnosed with having __________.
A.
a common disorder of the central nervous system
B.
a degenerative disorder of the central nervous system
C.
a disorder of the peripheral nervous system
D.
no disorder

PLEASE HELP DUE SOON!!!
MHR and THR Self-Check
You have learned to calculate Maximum Heart Rate and Target Heart Rate zone. Here’s the chance to check your understanding. Enter your age and then calculate the MHR and THR zone.

Calculate your Target Heart Rate zone

Step 1

Enter your age: ______

Step 2

Calculate your Maximum Heart Rate

Hint: MHR = 220 - your age

Enter the MHR: ____ beats per minute

Step 3

Find your Resting Heart Rate

Enter your RHR ____

Step 4

Calculate your Target Heart Rate zone

Hint: Target Heart Rate zone: [(MHR-RHR)*.5] + RHR
and
Target Heart Rate zone upper limit: [(MHR-RHR)*.85] + RHR

Enter the THR zone: ____ to ____ beats per minute

Which of the following levers has the fulcrum in the center of the lever and the resistance on one end, such as a see-saw?
A.
Class 1 Lever
B.
Class 2 Lever
C.
Class 3 Lever
D.
Class 4 Lever

___________ is the study of how our bodies use the food we eat to keep us healthy.

The peripheral nervous system is made up of the brain and spinal cord.

Without the skeletal system, the body could not carry oxygen in the blood.

Guess my fave sport and get brain thing
It has a ball and a net :3

Chris has a semester exam in Spanish next week. He has a lot of material to study and has created a circuit-learning schedule to use.

Use this chart to answer the question that follows:

The 10 day chart has three columns, day of week, time spent studying, and material to study. Monday, week one, 30 minutes spent studying material A. Tuesday, week one, 0 minutes spent studying material A and 20 minutes spent studying material B. Wednesday, week one, 10 minutes spent studying material A, 10 minutes spent studying material B, and 10 minutes spent studying material C. Thursday, week one, 10 minutes spent studying material B, 10 minutes spent studying material C, and 10 minutes spent studying material D. Friday, week one, 5 minutes spent studying material C, 10 minutes spent studying material D, and 15 minutes spent studying material E. Monday, week two, 5 minutes spent studying material D, 10 minutes spent studying material E, and 15 minutes spent studying material F. Tuesday, week two, 5 minutes spent studying material E, 10 minutes spent studying material F, and 15 minutes spent studying material G. Wednesday, week two, 5 minutes spent studying material F, 10 minutes spent studying material G, and 15 minutes spent studying material H. Thursday, week two, 5 minutes spent studying material H and 25 minutes studying materials A, B, C, D, and E. Friday, week two, 40 minutes spent studying materials A, B, C, D, E, F, G, and H.

What can Chris do to improve his circuit-learning schedule?

Review for longer periods of time, at least 10 minutes, at the beginning of each day.
Shorten this circuit-learning schedule as he is studying the material way too much.
Spend more time on the last day, at least an hour, and study each piece of material longer.
Use blocks of 5, 10, and 15 minutes on Wednesday and Thursday of the first week.

What three parts of your eye work together to make a clear image?
cornea, pupil and lens
iris, pupil, and cornea
cornea, lens and the shape of your eyeball
pupil, shape of your eyeball, and cornea

Which of the following refers to a bounce or spring back after one object comes in contact with another?
A.
Spin
B.
Rotation
C.
Rebound
D.
Force

01:56:31
If you have a muscle that has atrophied, the muscle would be __________.
A.
broken
B.
shrunken
C.
torn
D.
strained

An individual visits the doctor because they notice that, over time, they have been losing muscle strength. Which explanation will the doctor MOST likely give?
A.
The individual could have a muscle injury that is caused by a sprain.
B.
The individual could have a muscle disease that causes ligament tears.
C.
The individual could have muscular dystrophy.
D.
The individual could have a skeletal disease.

Describe at least 3 things that can influence a person's body image.

What is corontology?
A.
The study of the benefits that Pilates has on the heart.
B.
The holistic approach to exercise that is known today as Pilates.
C.
The study of the effects of exercise on body, mind, and spirit.
D.
The study of how an individual's core is related to his/her holistic health.