I WILL GIVE BRAINLIEST FOR THE FIRST RIGHT ANSWER Counting bubbles may not be the best way to measure the rate of photosynthesis. The volume of the bubbles is not always the same.

Suggest and explain one alternative way of measuring the gas given off to solve this problem. ​​

Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas