full length exam 5 terms

Question 1

parallel evolution

Answer 1

animals from different classes evolving to resemble each other physically

Question 2

convergent evolution

Answer 2

descendants of a similar species that face similar environments developing similar adaptations

Question 3

adaptive radiation

Answer 3

a number of different lineages emerging from a single acestral species

Question 4

coevolution

Answer 4

species with an antagonist relationship evolving adaptations at similar rates counter to each other

Question 5

describe annelids

Answer 5

have one way digestive tracts

Question 6

what is tetanus

Answer 6

constant contraction of muscle

Question 7

absolute refractory period

Answer 7

resetting of sodium channels

Question 8

what are cambium

Answer 8

actively dividing, undifferentiated cells that give rise to phloem and xylem

Question 9

what does the xylem do

Answer 9

carries water and nutrients up a plant

Question 10

what does the phloem do

Answer 10

carries nutrients down the plant

Question 11

what are root hairs

Answer 11

specialized cells of the root that increases surface area for absorption of water and minerals from the soil

Question 12

what are mesenchyme

Answer 12

patches of mesodermal tissue that has migrated from its original position in the gastrula such as that which give rise to the muscle, dermis, gonad, and skeletal muscle tissue

Question 13

what is the littoral zone

Answer 13

region of the continental shelf

Question 14

what do algae need to survive

Answer 14

light

Question 15

what is a deleterious mutation

Answer 15

one that causes damage

Question 16

what factors decrease hemoglobins affinity for oxygen

Answer 16

increase CO2, increased temperature, and decreased pH

Question 17

what does the large intestine absorb

Answer 17

water and salts

Question 18

what does the stomach absorb

Answer 18

small molecules only

Question 19

what does the jejunum and ileum absorb

Answer 19

water soluble vitamins, simple sugar, glucose, fructose, galactose, amino acids

Question 20

what get packages into chlyomicrons

Answer 20

larger fats, fat soluble vitamins, glycerol, cholesterol

Question 21

what is genetic drift

Answer 21

changes in gene pool that are entirely due to chance

Question 22

what does hypothyroidism lead to

Answer 22

general decrease in metabolic rate leading to cold intolerance

Question 23

what reduces NAD+ in photosynthesis

Answer 23

P700

Question 24

what oxidizes water in photosynthesis

Answer 24

P680

Question 25

what happens in an inducible system

Answer 25

the repressor binds to the operator to block transcription