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1. in a hot-water heating system, room temperature is controlled by a device called
2. heat engines convert which type of energy into mechanical work?
a. chemical
b. nuclear
c. thermal
d. elastic
3. how are internal combustion engines different from external combustion engines? give examples of both types of engines.

What is the sequence of amino acids corresponds with the rna strand ucg ggg cac

How dose plate tectonics effect climate

Interactions between organisms and their environment impact the organism’s overall population. the jaguar panthera onca is the largest cat in north america. it is found in areas across the southwest, including arizona, new mexico, and texas. it is a carnivore that has powerful jaws and sharp teeth and preys on fish, turtles, tapirs, and many smaller mammals. which shows the relationship between the jaguar and turtles?