Question

multiple choice 10 points
to reproduce sexually, bryophytes require
high temperatures
insect pollination
water around the gametes
none of the above
14 multiple choice 10 points
what are present in a birds gizzard that help it fragment its food?
gallstones
symbiotic fungi
small pebbles
illeal teeth
5 multiple choice 10 points
what enzyme initiates the breakdown of starch when you eat a piece of bread?

Explanation:

Question 13 (Bryophytes Sexual Reproduction)

Bryophytes (like mosses) have flagellated sperm (gametes) that need water to swim to the egg for sexual reproduction. High temperatures aren’t a requirement, and they don’t use insect pollination (they’re non - flowering). So the correct option is the one about water around gametes.

Birds swallow small pebbles (gastroliths) that go to the gizzard. The gizzard’s muscular walls and these pebbles help grind food. Gallstones are in human gallbladders, symbiotic fungi aren’t for gizzard food fragmentation, and ileal teeth are not a feature of bird gizzards. So the correct option is the one with small pebbles.

Answer:

C. water around the gametes

Question 14 (Bird's Gizzard)