Known as the twilight zone, the mesopelagic zone meets the photic zone above and becomes very dark as depth increases. temperature decrease; pressure increases. because nutrients are limited here, some animals rise to the photic zone at night for food. many animals in this subzone can eat animals larger than themselves because they are equipped with large sharp teeth with expandable jaws and stomachs. another key physical feature of animals living in this zone is which has a variety of purposes, including predator deterrence, communication, and lures for prey. a) symbiosis b) transparency c) bioluminescence d) over-sized scales

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?