The cornea, lens, and retina are the most important parts of the eye for focusing light and creating a clear image.
Explanation:The parts of the eye that are most important for focusing light and creating a sharp image are the cornea and the lens. The cornea is the transparent outer layer of the eye that helps to focus light by bending it as it enters the eye. The lens, located behind the iris, can change its shape to adjust the focus of the eye, allowing us to see objects at different distances clearly.
Another important part for focusing light is the retina, which is a layer of light-sensitive cells at the back of the eye. When light passes through the cornea and lens, it forms a real image on the retina. The center of this image falls on a small area of the retina called the fovea, which has the highest concentration of light receptors and produces the sharpest vision.
Overall, the cornea, lens, and retina work together to focus light and create a clear image for us to see.
Match each disease with the body system it affects.
Tiles cardiovascular system digestive system endocrine system immune system
match with these v
Pairs cirrhosis Addison disease mononucleosis arteriosclerosis
Answer:
cardiovascular system: arteriosclerosis
digestive system: cirrhosis
endocrine system: Addison disease
immune system: mononucleosis
Explanation:
Arteriosclerosis: In this disease the arteries that are part of the cardiovascular system become thick and rigid, restricting the flow of blood to the organs and tissues.
Cirrhosis: Cirrhosis is a chronic liver damage that is part of the digestive system.
Addison disease: This occurs when the body does not produce enough hormones. The adrenal glands produce very little cortisol and often very little aldosterone. These glands become part of the endocrine system
Mononucleosis: It is an infection caused by a virus. The host's immune response plays a fundamental role in the development of the disease.
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Question 1 (Multiple Choice)
Dynamic stretches are part of an effective warm-up because they can help
A) lubricate the muscles used in the activity
B) decrease cardiovascular difficulty in the activity
C) expand lung capacity for the activity
D) build endurance for the activity
Hypertension is NOT a type of cardiovascular disease. True. Hypertension is NOT a type of cardiovascular disease.
The answer is FALSE. . .
The three major substances removed from the blood by the kidneys are:
Sugar
Carbon dioxide
Salt
Excess Water
Protein
Final answer:
The kidneys filter the blood and remove the major substances including urea, excess salt, and excess water to maintain the body's homeostasis. Urea is a waste product from protein metabolism, while salt and water are regulated to maintain fluid balance. Carbon dioxide is mostly removed by the lungs and sugars and proteins are normally reabsorbed, not excreted by the kidneys.
Explanation:
The kidneys are essential organs in the urinary system responsible for filtering the blood and removing various substances to maintain the body's homeostasis. The three major substances removed from the blood by the kidneys are urea, excess salt, and excess water. Urea is a nitrogenous waste product that comes from the metabolism of proteins, and it's the primary waste that the kidneys filter out of the blood. Salt, which includes various minerals, and excess water are also eliminated to regulate the body's fluid balance and ensure proper cellular function.
The kidneys help in maintaining the acid-base balance by regulating pH through the secretion or reabsorption of hydrogen ions and bicarbonate. They also play a pivotal role in regulating blood pressure and are involved in the reabsorption of important substances, such as calcium, sodium, glucose, and amino acids to maintain homeostatic plasma concentrations.
What statement is true regarding muscle contraction?
Help with HOPE questions
What should you do if you feel "in over your head"?
Stop what you are doing
Make a quick decision
Do something new instead
Check with a guardian or mentor
The condition which results from improper operation of a heart valve is called a _______
Which of the following nutrients makes up the largest percentage of our body weight?
Water
Carbohydrates
Fat
Proteins
Correct answer choice is:
A. Water.
Explanation:
Water is the most Essential Nutrient. Nutritionists consume a lot of time examining entire absorbable nutrients, minerals, raw protein and also several divisions of protein. Nevertheless, we usually take for conferred the most essential nutrient, the one needed in the largest quantity by any kind of cattle water. The percentage of water in newborns is much greater, usually about 75-78% water, falling to 65% by one year of life.
Sandy is always able to make it to the basketball hoop before anyone can reach her. Which skill has she worked on to develop this ability?
A. Agility
B. Reaction time
C. Balance
D. Speed
Answer:
A. Agility
Explanation:
Agility is the ability to change the body’s position efficiently and requires the integration of isolated movement skills using a combination of balance, coordination, speed, reflexes (reaction time), strength and endurance. When you are playing basketball, you need to be aware of all your surroundings and know what is happening in the field. By having agility, you can maintain the ball bouncing, while dodging the other players, and speed to the other side of the court. Basketball is a sport where you need a combination of various skills, therefore, agility is the best answer, because it gathers them all.
true or false Aerobic exercise increases endurance while anaerobic exercise builds muscle strength.
True, aerobic exercise, including activities like cycling and walking, builds endurance by improving oxygen efficiency in muscles, while anaerobic exercise, such as weight training, increases muscle strength by developing muscle fibers differently for high-intensity tasks.
Aerobic exercises use a relatively high percentage of slow-twitch muscle fibers, which are good for enhancing cardiovascular fitness and muscular endurance. Common aerobic exercises include activities like cycling and brisk walking, which help improve the efficiency of oxygen use in muscles and cardiac muscle performance over time.
On the other hand, anaerobic exercise, which includes activities such as weight training or sprinting, leads to an increase in muscle mass. This is because muscles under anaerobic conditions develop to handle short duration-high intensity tasks. As a result of these activities, muscle fibers gain a larger number of mitochondria and greater energy reserves, allowing for strength gains.
If you wanted to be able to run longer or exercise longer you would want to participate in an aerobic exercise to help you increase your endurance.
True
False
What should you do to solve the problem of exposure to your mom's secondhand smoke in the house? (3 points)
At the __________, the light rays convert to electronic impulses and the optic nerve transmits them to the brain.
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Question 3 (Multiple Choice)
Cooling down is important after exercising to
A) decrease intensity
B) strengthen muscles
C) improve performance
D) prevent injury
Please check my answers because I need to do good at this.
1. When consuming fats the healthiest choice is foods high in?
A. saturated fats B. unsaturated fats * C. trans fat D. cholesterol 2. The body's main energy source should come from what essential nutrient?
A. protein* B. fat C. carbohydrate D. minerals 3. The essential nutrient that serves are the main building blocks for the body is?
A. protein * B. fat C. carbohydrates D. vitamins
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Question 5 (Multiple Choice)
Bethany walks on the treadmill at least four times per week to maintain her cardiovascular health. Lately, she has been finding excuses not to exercise and is starting to miss one or two sessions each week. How can she apply the SPORT principles to get her workouts back on track?
A) She can focus on progression by walking slower for fewer minutes on the treadmill.
B) She can take a break from walking for a few weeks in order to prevent reversibility.
C) She can start to lift weights while walking on the treadmill to increase specificity.
D) She can explore other types of physical activity to combat the tedium of her workout.
If four ounces of orange juice contain 50 calories, how many ounces of orange juice will have 175 calories?
Which kind of tumor grows slowly and is surrounded by membranes that prevent it from spreading from the original site?
Benign tumors are slow-growing and surrounded by a fibrous capsule that prevents them from spreading.
Explanation:Benign tumors are slow-growing and are surrounded by a membrane called the fibrous capsule that prevents them from spreading from the original site. These tumors do not invade nearby tissues. An example of a benign tumor is a meningioma, which grows on the membranes surrounding the brain and spinal cord.
Learn more about Benign tumors here:https://brainly.com/question/15097070
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Name three methods a person can take to protect their skin from the sun
Strong tissue which join bones together are the ______
In your opinion, is "avoiding" an effective conflict management strategy? Why or why not?
No, it is not an effective conflict management policy as because by dodging one run from the firm truth of the matter. one should face everything as a difficulty and overcome it. The avoidance approach seeks to put off conflict indefinitely. By pausing or neglecting the conflict, the avoider hopes the problem resolves itself without a meeting. Those who actively avoid conflict generally have a low appreciation or hold a position of low power.
Which of the following is most likely to result in personal harm or injury during physical activity?
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Why is it important to develop your own fitness program and not just use one developed for someone else?
which of the following is NOT an effective way of taking charge of your health and wellness
a.) participation
b.) advocation for your health and the health of others
c.) followings the advice of the media
d.) becoming health literate
What is nurturing and how is that communicated?
A person who already has a sexually transmitted infection is more likely
to contract ______.
A. hepatitis B. gonorrhea C. HIV D. syphilis
Which of the following is a function of public health policy?
A.
to increase the transmission of diseases
B.
to control outbreaks of diseases
C.
to educate the public to make risky health decisions
D.
to provide vaccinations against diseases
during resistance training with weights, it is important to? A. hold your breath B. Exercise the muscle to exhaustion C. Use correct posture D. Hold the weight tightly
______the results of sweat being allowed to sit on bacteria-crowded areas of the skin
Answer:
Body odor is the result of sweat being allowed to sit on bacteria-crowded areas of the skin.