Unlike rocky beaches, sandy beaches have vertical zonation of organisms that live in the sediment
Indicate whether the statement is true or false
T
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You are investigating a particular cell type, and you notice that a protein normally found in the lysosome ends up being secreted from the cell. This appears to be the only thing wrong with these cells
Of the following conditions, which is the most likely cause of this defect in these cells? A. The lysosome leaks the protein out of the cell. B. The signal sequence on the lysosomal protein is defective. C. Transport vesicles responsible for sorting in the cell are defective. D. The pH of the lysosome is not low enough for the protein to remain in it.
Answer the following statements true (T) or false (F)
1. The nervous system of a cnidarian consists of a central ganglion leading into a nerve net. 2. The two body forms of some radiates is an example of alternation of generations. 3. Although a medusa and a polyp look different, they have similar body plans. 4. All Platyhelminthes are parasitic.
Seeds contain all of the following EXCEPT
A. stored food. B. sufficient water for germination. C. an embryo sporophyte. D. a seed coat.
Chemical reactions are reversible; they can proceed in both the forward and reverse directions
If the ?G° for the reaction Y->X is energetically favorable, how can you explain the fact that not all of the Y molecules will be converted to X molecules?