Potatoes, like most cells, are composed of approximately 99% water. when freshly peeled potatoes are placed into a bowl of pure water, what will happen to the potatoes?
a. they will shrink due to water leaving the potato
b. they will have no change since the amounts of water entering the potatoes will balance the amounts of water leaving the potatoes
c. the potatoes will absorb some of the water and become firmer
d. the potato cells will absorb a great deal of water and burst

The construction of phylogenetic trees is a mapping out the proposed divisions and common ancestors of all living species. traditionally, these trees have been built using morphological data, such as appearance and embryology. recently, it has been possible to construct these trees using molecular data. phylogenetic trees based on different types of information agree with each: that there is strong evidence of a real underlying common descent. this phylogenic tree is composed based on molecular data (rrna). what statements can we infer are true about the organisms throughout the tree? because the tree is rooted, all branches share a common ancestor. all organisms have some sort of cellular structure/organization. all eukaryotes evolved from bacteria. since the organisms contain rna, they share the same dna. if the organisms contain rna, the share the same four nitrogen bases.

Nerve cells are specialized to respond to stimulitrue or false?

Which direction does the energy flow in this energy pyramid ?