The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of water into and out of the cell in an aquatic environement. What condtions cause the contracile vacuole to fill with water? Your A. The concentration of water is greater outside the cell than inside the cell. B. The concentration of water inside the cell is the same as the concentration outside the cell. C. The temperature of water in the vacuole is higher than the temperature of its environment.

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.

Wich organism obtains its energy from dead or decaying matter

The tubes transporting minerals and water upward are called ?