Ascientist makes a discovery that suggests a hominid species created and used relatively sophisticated tools. the scientist decides to publish his findings. which of the following sources would be regarded as the most reliable?
a. a scientific magazine article
b. a college or university website
c. a film on anthropology
d. a journal reviewed by peers
(i'm leaning more towards a or d. i need a peer to me)

Aflashlight produces light using energy from the batteries. in which order does the energy change form? a. from chemical to electric to light energy b. from electric to light to chemical energy c. from electric to chemical to light energy d. from light to electric to chemical energy

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water