Whales are tetrapods--but living whales do not have four limbs. What is a more accurate way to describe tetrapods?

A) Animals that have at least two limbs
B) Animals that descended from a four-limbed ancestor
C) Animals that have four limbs at some point in their lives
D) Animals that evolved the ability to survive without limbs

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o

What best describes lactic acid fermentation?

Which organelles are labeled d, and what is one feature that distinguishes them from the other labeled organelles chloroplasts the only organelles that produce sugars from sunlight mosomes, only found in animal and bacterial cells centricles only found in animal cells mitochondra, the only energo-generating structures found in cells