The most common isotope of oxygen has atomic number 8 and atomic mass number 16. another isotope has two extra neutrons. what are the atomic number and atomic mass number of this isotope?

A researcher observes two species of frogs in the same area. Both species have a similar diet. One species breeds in fast-moving streams, while the other species breeds in ponds. Both species are similar in appearance and have very similar DNA.

What is one result of meiosis 2 haploid cells 4 diploid cells two diploid cells 4 haploid cells

Which of these qualities is an advantage of LED lightbulbs? O O A. They are harder to dispose of than traditional lightbulbs. B. They last much longer than traditional lightbulbs C. They are more expensive to buy than traditional lightbulbs. O D.

All organisms in the kingdom plantar are

When dr. farrell was a graduate student, he once made up a ph 8.0 sodium acetate buffer. why would the casual observer to this buffering faux pas come to the conclusion that he had the intellectual agility of a small soap dish?

Which is an example of the bottleneck effect? A) Green beetles move to a new location and build a new colony there. B) Green beetles survive as birds don't see them, whereas brown beetles get detected.

Why the average yearly temperature at the north pole is - 18c while the average yearly temperature at the equator is 27c?

The separation of a group of individuals from the rest of the population is referred to as

The following are features of mitosis or meiosis. can you put them in groups. im so confused : allows for transmission of chromosomes to offspring, necessary for growth and regeneration, allows for regeneration of an organism, two identical diploid

What is the MAIN cause of increased erosion, especially for soil? A) strong winds B) flash floods C) human activity D) movement of glaciers