Different areas of coral reefs contain different species of corals. Describe 2 environmental characteristics that can account for the distribution patterns of coral species on a reef
What will be an ideal response?
Coral species differ from one another in their light requirements and their ability to withstand rough waves. As a result, corals partition their habitat. Corals, such as the branching elkhorn corals, occupy the roughest parts of the reef at the reef front. In calmer areas, delicate coral species thrive and outcompete the elkhorn corals. Likewise, corals that can withstand low light levels tend to dominate in deeper waters where they outcompete other species.
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An unusual red sponge is discovered near a deep-sea vent. You want to determine if this is a new species of sponge, so you separate the cells for further study. A new lab assistant accidentally adds cells from a blue sponge to your preparation while you are at lunch. When you return, you find that the sponge cells have reaggregated into a multicellular organism. What do you see if the red and blue sponges are the different species?
A. one sponge with a red side and a blue side B. one blue sponge and one red sponge C. one sponge with blue and red randomly distributed D. one purple sponge (mix of red and blue colors) E. one sponge with alternating red and blue layers of cells
Humans, chimpanzees, and bonobos are both
A. primates and Homo sapiens. B. Homo sapiens. C. primates. D. hominids. E. primates and hominids.
Where is ATP synthase located in the mitochondrion?
A) cytosol B) electron transport chain C) outer membrane D) inner membrane E) mitochondrial matrix
Aquatic organisms can be found throughout fresh and salt water environments at almost all depths. Although, most living things are found in the zones that have the greatest light penetration. Which of these is the most important reason why light penetration is essential to aquatic life?
A) Light energy heats the water and most fish are cold blooded. B) Light energy is the foundation of the food webs within the aquatic ecosystem. C) The organisms need to be able to see to hunt. D) Fish need to see others of their species for reproduction.