Biology Homework Help Please!!!!!!?

Question

1) which is not a function of the human skin?
a. sensory reception
b.vitamin D synthesis
c. blood circulation
d. water retention

2) What is function of the axon within the nervous tissue?
a. none
b. direct impulses away from the cellular structure
c. receiving of stimuli
d. process signals sent to the cell body
e. all of the above

3) Select the correct function of muscular tissue within the human body.
a. aid in movement
b.aid in strenghtening of system
c. both a and b
d.none of the above

4) Give the location of simple columnar epithelium tissue.
a. uterus, intestine
b. intestine, throat
c.uterus, throat
d. duodenum, jejunum
e. both a and d

5) What are organs composed of?
a. cells
b. various tissues
c. adipose
d. none of the above
e.all of the above

Answer 1

1. c absolutely
2. a bit confusing, but likely bcd
3. a for sure, and b... since it is so broad, b as well
4 a and d... epithelial cells come from the endoderm
5. all. There are various tissue in all organs, cells, naturally, and fat, (adipose)

Answer 2

even if your teacher didn't directly teach it, it's probably in your text book. hydrophillic = water loving hydro phobic = water fearing (think phobia=fear) 1) using logic, oils are made of lipids, which are hydrophobic (water repellant). dry cleaners also use a hydrophobic molecule. not sure why hydrophobic + hydrophobic = clean, but you can be sure that water against a hydrophobic stain won't do anything. 2) grease = hydrophobic (grease phob=x) assume soap is 2 parts (phob=o+phil=O) it'll look like this oO so = soap grease soap would look like: OoxoO so that hydrophobic molecules attach themselves together. (Phob+phob together because of drycleaner answer above)

Answer 3

Man, I wish I had yahoo answers when I was in school! Would have been sweet!

Answer 4

Read your notes and textbook. You can find these answers easily.

Answer 5

1c
2b
3c
4b
5a