2. According to the cladogram of primates shown, which key cultural feature was shared exclusively by only homo sapiens and Neanderthals?
A. Artistic creation
B. Tool building
C. Walking upright
D. Burying dead/religious beliefs

Turtle hatchling survivorship rate is low in many turtle species due to predation. amanda researched the predatory rate on a species of turtle eggs in the red river. the eggs were harvested from trapped turtles and the egg's cloaca film (reproductive discharge) was either washed off or left on once gathered. research suggests that predators use the female's cloaca scent to locate the eggs. the eggs were only handled when wearing gloves and then reburied along islands where the turtles were trapped. the nests were monitored by cameras and manually on foot and data on nest predation were recorded. a. based on the experimental design, what is the dependent variable? b. based on the experimental design, what is the independent variable? c. based on the experimental design, what is the control?

Sediment layers stop lateral spreading when: they encounter a barrier they encounter an opposing current they run out of additional sedimentary material

In the sentence "a mining company will consider the distribution of coal when deciding how to mine the coal," what does the word distribution mean?