A gas has a volume of 15 L, a temperature of 300 K, and an unknown initial pressure. Then, the
gas expands to 30 L, remains at 300 K, and has a
pressure of 300 kPa. What was the initial pressure
of the gas?
a. 150 kPa
b. 600 kPa
330 kPa
d. 570 kPa
C.

Illustrate, label, and explain how atmospheric carbon and oxygen find there way into a consumer and then back into a producer. include the following terms in your illustration: co2, 02, respiration, photosynthesis, sugar, mitochondria, chloroplast, water, solar radiation

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

What is the difference between how ionic and covalent bonds form