1. tough, fibrous protein produced by skin cells 2. lower layer of the skin, located directly beneath the epidermis
3. structure where hair originates
4. protective, waterproof layer of skin
5. brownish pigment that gives skin much of its color
6. condition in which red bumps called pimples form on the skin
7. outer layer of skin, consisting of epithelial cells
8. produces the salty fluid called sweat
9. produces an oily substance called sebum
10. a fiber that is found only in mammals
11. includes the skin, nails and hair
12. disease in which skin cells grow out of control
Terms
a. acne
b. dermis
c. epidermis
d. hair
e. hair follicle
f. integumentary system
g. keratin
h. melanin
i. sebaceous gland
j. skin cancer
k. stratum corneum
l. sweat gland

Populations of blue-winged warblers, a type of bird, migrate south in the winter and return to canadian breeding grounds in the spring. as global temperatures have increased due to climate change, spring has started arriving in the warbler's breeding grounds earlier in the year, before the warblers return. warblers now arrive at their breeding grounds too late to select ideal nesting sites and to feed on important early-spring food sources how are populations of blue-winged warblers most likely to be affected by the earlier arrival of spring? o a. populations will go extinct since the warblers will stop migrating to breeding grounds. b. populations will be unaffected since most species can quickly adapt to effects of climate change. c. populations will increase since warmer temperatures are generally beneficial to survival, d. populations will decline since individuals will be less likely to successfully reproduce, reset next

What prevents odyssey from killing the sleeping cyclops

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?