Name the two main clades of Rhizaria, and then list one way of distinguishing one of those clades from the other What will be an ideal response?
The two main clades of Rhizaria and the foraminiferans (forams) and the actinopods. Forams
have cytoplasmic projections that form a threadlike, interconnected net. In actinopods, the
cytoplasmic projections are long and filamentous.
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Match the structures with their appropriate functions:
A. Roots allow plants to obtain water and nutrients, while shoots allow plants to obtain gases and sunlight. B. Roots allow plants to obtain water, nutrients and glucose, while shoots allow plants to obtain sunlight. C. Roots allow plants to obtain glucose, while shoots allow plants to obtain sunlight and water. D. Roots allow plants to obtain carbon dioxide and water, while shoots allow plants to obtain nutrients and oxygen.
Consider the 4.6-billion-year history of the Earth. Geological and fossil evidence indicates that during the greatest fraction of its history, the Earth
a. was too hot to have either a solid surface or any form of life. b. had organic molecules in liquid water, but no living forms. c. had unicellular organisms, but not multicellular. d. had both multicellular and unicellular organisms, but no terrestrial (land) forms. e. had both terrestrial, freshwater, and marine organisms, both unicellular and multicellular.
The metal atom bound to the heme group of hemoglobin is
A. sodium. B. copper. C. zinc. D. iron. E. manganese.
Four of the five plants listed below are C4 plants
Select the exception. a. corn b. spinach c. sugarcane d. crabgrass e. Bermuda grass