Which causes a drop in female hormone levels?

Question

the onset of the menstrual flow
the release of an egg from the ovary
the thickening of the uterine wall
the failure of an egg to be fertilized

2. The lungs, nose, and trachea are organs of the respiratory system. Which best describes these organs?

They deliver nutrients to the other tissues.
They deliver oxygen to the blood.
They are both used for support.
They help break down food.

3. he picture is a cross section of a bone.A cross sectional view of bone. X points to the inner layer. Y points to the middle layer.Which structures of the bone are indicated by the arrows?
X-compact; Y-spongy
X-spongy; Y-marrow
X-spongy; Y-compact
X-marrow; Y-spongy

4. Heather presented to her class a report about the pancreas. Which statement in Heather’s report was not accurate?
The pancreas has both endocrine and exocrine functions.
The pancreas regulates blood sugar concentration.
The pancreas triggers the development of secondary sex characteristics.
The pancreas helps digest fat, protein, and carbohydrates.

5. A team of scientists is working to formulate a drug that can treat children who are diagnosed with gigantism. Which effect should the drug have on patients?
starts the secretion of substances from the adrenal gland that decrease growth
increases the secretion of substances from the reproductive glands that stop growth
stops the secretion of substances from the thyroid gland that cause growth
decreases the secretion of substances from the pituitary gland that cause growth

6. High blood pressure occurs when there is too much blood flowing through the blood vessels at one time. By changing the amount of water in the blood, blood pressure can change. The excretory system can help to lower blood pressure.

Which would most likely occur in the kidney?

More water would be transferred from the nephron.
Less water would be absorbed into the nephron.
The amount of water in the bladder would decrease.
The amount of water in the blood would increase.

7. What does the immune system protect the body against?
changes of the internal body temperature
changes in the temperature of environment
changes caused by harmful pathogens
changes in the pH of the blood

8.
___is the involuntary movement of the muscles that move food through the digestive system.
peristalsis
salivation
digestion
secretion

9. Sound can be heard when air passes over a respiratory structure that is located between the pharynx and the trachea.

Which structure is responsible for the voice?

the nose

the larynx

the lung

the alveoli

10. Which product of respiration is considered waste material and leaves the alveoli?

oxygen

water

carbon dioxide

carbon monoxide

11. Leukopenia is a condition characterized by a decrease in white blood cells. What effect does leukopenia have on the body's ability to fight infection?
Leukopenia increases the body's ability to fight infection.
Leukopenia decreases the body's ability to fight infection.
Leukopenia has no effect on the body's ability to fight infection.
Leukopenia increases the body's ability to fight infection at certain times and decreases it at other times.

12. Which part of the autonomic system is most likely to be dominant while someone is napping after lunch?

the peripheral nervous system
the sympathetic nervous system
the somatic nervous system
the parasympathetic nervous system

13. Which of the following describes the epididymis?
a tube that transports sperm to the urethra
a vesicle that produces fluid and gives sperm nourishment and motility
a gland that contributes fluid to semen
a tube that stores and develops sperm cells from the testes

14. Once the body has begun shivering, what happens to make it stop shivering?

When body temperature returns to normal, the respiratory system sends a message to the skeletal system to stop shivering.
When body temperature returns to normal, the nervous system sends a message to the muscular system to stop shivering.
When body temperature is below normal, the nervous system sends a message to the skeletal system to stop shivering.
When body temperature is below normal, the respiratory system sends a message to the muscular system to stop shivering.

15. The ___
nervous system is a part of the autonomic system that conserves energy by returning the body to a normal activity level through a lowered heart rate and blood pressure.

Answer 1

Here are the answers to the questions you provided:

1. Which causes a drop in female hormone levels?

   • The failure of an egg to be fertilized

2. The lungs, nose, and trachea are organs of the respiratory system. Which best describes these organs?

   • They deliver oxygen to the blood.

3. Which structures of the bone are indicated by the arrows?

   • X-spongy; Y-compact

4. Which statement in Heather’s report was not accurate?

   • The pancreas triggers the development of secondary sex characteristics.

5. Which effect should the drug have on patients diagnosed with gigantism?

   • Decreases the secretion of substances from the pituitary gland that cause growth.

6. What would most likely occur in the kidney to help lower blood pressure?

   • Less water would be absorbed into the nephron.

7. What does the immune system protect the body against?

   • Changes caused by harmful pathogens.

8. ___ is the involuntary movement of the muscles that move food through the digestive system.

   • Peristalsis

9. Which structure is responsible for the voice?

   • The larynx

10. Which product of respiration is considered waste material and leaves the alveoli?

    • Carbon dioxide

11. What effect does leukopenia have on the body's ability to fight infection?

    • Leukopenia decreases the body's ability to fight infection.

12. Which part of the autonomic system is most likely to be dominant while someone is napping after lunch?

    • The parasympathetic nervous system

13. Which of the following describes the epididymis?

    • A tube that stores and develops sperm cells from the testes.

14. Once the body has begun shivering, what happens to make it stop shivering?

    • When body temperature returns to normal, the nervous system sends a message to the muscular system to stop shivering.

15. The ___ nervous system is a part of the autonomic system that conserves energy by returning the body to a normal activity level through a lowered heart rate and blood pressure.

    • Parasympathetic nervous system

Feel free to ask if you have any more questions or need further clarification!

Answer 2

16. Skeletal muscle is controlled by the organism.

Which best describes what this means in terms of movement?

Any muscle attached to the skeleton is voluntary and may be used for movement.
Some of the muscle attached to the skeleton is involuntary and may be used for movement.
Some of the muscle attached to the skeleton is voluntary and may be used for movement.
All of the muscles attached to the skeleton are involuntary and may be used for movement.

17. Which type of muscle tissue is both voluntary and striated?

smooth
cardiac
skeletal
heart

18. Which structures are parts of the central nervous system? Select all that apply.

the brain
the heart
the spinal cord
the sensory neurons
the bones
the muscles

19. Lewis is exercising and his muscles need oxygen. Which best describes how systems interact to bring his body into homeostasis?

The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the muscular system.
The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system.
The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the skeletal system.
The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the skeletal system.

20. What would cause antibodies to attack the cells of the body?
The cells support bacterial growth.
The cells are worn out and need to be replaced.
The antibodies mistakenly identify the cells as foreign material.
The red blood cells are malfunctioning.

21. Which is the temporary storage tank for urine?

bladder
stomach
kidney
urethra

22. Which shows a correct association between a structure and one of its functions?

Pores receive sensory information.
Oil regulates temperature.
Vitamin D protects against bacteria.
Sweat glands remove waste.

23. Which of the following describes a negative feedback loop?
When the heart rate is too high, the body releases hormones that continually increase the heart rate higher.
When a pregnant woman is in labor, the body releases hormones that increase the intensity of contractions, which then increases the secretion of the same hormones.
When blood sugar concentration is above normal, the endocrine system releases hormones that lower the blood sugar concentration until it reaches a normal level, and the release of the hormones slows.
When a person is jogging, the body releases hormones that continually decrease the rate of oxygen supply to the legs.

24. Veins take blood back to the heart. Which gas would be most abundant in a vein that takes blood from muscle cells in the arm back to the heart?

carbon dioxide

oxygen

nitrogen

hydrogen

25. Which blood component makes up 41% of the blood’s volume?

plasma

red blood cells

platelets

white blood cells

Answer 3

Here's a continuation of the answers to your questions:

16. Which best describes what it means for skeletal muscle to be controlled by the organism in terms of movement?

• Any muscle attached to the skeleton is voluntary and may be used for movement.

17. Which type of muscle tissue is both voluntary and striated?

• Skeletal

18. Which structures are parts of the central nervous system? Select all that apply.

• The brain
• The spinal cord

19. Which best describes how systems interact to bring Lewis's body into homeostasis during exercise?

• The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system.

20. What would cause antibodies to attack the cells of the body?

• The antibodies mistakenly identify the cells as foreign material.

21. Which is the temporary storage tank for urine?

• Bladder

22. Which shows a correct association between a structure and one of its functions?

• Sweat glands remove waste.

23. Which of the following describes a negative feedback loop?

• When blood sugar concentration is above normal, the endocrine system releases hormones that lower the blood sugar concentration until it reaches a normal level, and the release of the hormones slows.

24. Which gas would be most abundant in a vein that takes blood from muscle cells in the arm back to the heart?

• Carbon dioxide

25. Which blood component makes up 41% of the blood’s volume?

• Red blood cells

If you have any more questions or need further assistance, feel free to ask!

Answer 4

96!!!!!

Answer 5

Congratulations on achieving a score of 96! That's an impressive result! If you have any questions or need further help with any topics, feel free to ask. Celebrate your success! 🥳