Looking at some pond water under a microscope, you notice an unfamiliar rod shaped cell about 200mm long, knowing that some exceptional bacteria can be as big as this or even bigger, you wonder whether your cell is a bacterium or a eukaryote. how would you decide? if it is a eukaryote, how will you discover if it is a bacterium or an archaeon?

Match the type of adaptation to the correct example, structural adaptation functional adaptation behavioral adaptation example type of adaptation elephants live in herds to protect their young leaves of a rain forest plant species have a pointed tip that enables rainwater to drain off easily. camels have nostrils that they can close snakes produce venom to kill prey and defend themselves. earthworms coil when touched, as part of a defense mechanism. human skin darkens with increased exposure to sunlight.

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring