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Which system controls your sleeping pattern?

11. In your lungs there are grapelike clusters of air sacs called _____.
alveoli
bronchi
capillaries
trachea
12. The circulatory system is made up of blood vessels, blood, and _____.
the heart
the lungs
the pineal glands
the skull
13. A blood clot on a wound can best be compared to _____.
a bandage
branches of a tree
a life-threatening infection
antibodies
14. Which of the following makes up the nervous system?
brain, spinal cord, nerves, and nerve receptors
heart, blood vessels, and blood
hormones, endocrine glands, ducts
kidneys, ureters, bladder, and urethra
15. The brain sends messages to your body through _____.
antibodies
antigens
cilia
neurons
16. Physical characteristics of an organism are ____.
alleles
traits
genes
recessive
17. Mitosis results in ____ nuclei, each with ____ genetic information.
two; different
two; the same
four; different
four; the same
18. ____ can be beneficial, harmful, or neutral.
Meiosis
Mitosis
Regeneration
Mutations
19. When a pair of chromosomes contains different alleles for a trait, that trait is called a(n)____; when a trait has two identical alleles, it is called ____.
recessive; dominant
dominant; recessive
hybrid; pure
pure; hybrid
20. Which system controls your sleeping pattern?
circulatory system
endocrine system
nervous system
respiratory system

6 COMMENTS

  1. 11. alveoli
    12. pineal glands
    13. a bandage
    14. heart, blood vessels, and blood
    15. neurons
    16. recessive
    17. two; the same … or 2n , n
    18. Mutations
    19. recessive; dominant
    20. nervous system
    Next time, try to read some text books and do your own homework!

  2. 11. alveolit
    12. the heart
    13. a bandage
    14. the first answer
    15. neurons
    16. traits
    17. two, the same
    18. Mutations
    19. recessive; dominant
    20. endocrine system

  3. You guys are idiots! People don’t come to these sites to feel bad about looking up things that they don’t understand! Just give them the damn answers for gods sake!

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