3 Four test-tubes are set up as shown in the diagram and left in full sunlight.
After several hours, which test-tube contains the most dissolved oxygen? (5)
(1 Point)
A
B
С
D
pond
weed
pond
weed
water
water
water
water
Snail
snail

4the indian leaf butterfly has traits that allow it to resemble a leaf. the bright colors of the monarch butterfly indicate that the butterfly tastes bad and can be poisonous. how does the appearance of these butterflies them to survive? f the indian leaf butterfly is able to avoid predators while the monarch butterfly warns predators away. g. the indian leaf butterfly frightens predators away while the monarch butterfly poisons predators before they can eat it. h both butterflies rely on camouflage to avoid predation. j both butterflies cooperate with one another to avoid predation.

What drives an advertising campaign?

What is the main fuel source for the work of the cell