Some protozoa have cell structures that are formed as temporary extensions of the cell membrane, allowing the cell to detect and respond to their environment, and to catch and engulf food. These extensions are called
What will be an ideal response?
pseudopodia
You might also like to view...
Organisms that are characterized by being unicellular, photosynthetic, and having double shells made of silica are known as
A. dinoflagellates. B. diatoms. C. kelps. D. euglenoids. E. foraminifera.
You are studying the bacteria in the water of a nearby pond. From a 100 mL sample, you use a 0.5 mL subsample to inoculate a plastic dish filled with a semisolid nutrient medium that fosters growth of coliform bacteria. After an appropriate incubation period, you count 100 bacterial colonies growing on the surface of the medium. What conclusion can you make about the coliform bacteria in the pond water?
A. There is approximately one coliform bacterial cell per milliliter. B. There are approximately 200 coliform bacterial cells per milliliter. C. There is approximately one coliform bacterial species per milliliter. D. There are approximately 200 coliform bacterial species per milliliter.
Alternate forms of the same gene
A. do not exist. B. are alleles. C. are homologs. D. are sister chromatids. E. do not occur in the same individual.
A researcher wants to cleave the DNA of a target organism at a single, precise location in the genome. The best way to achieve this is to select a restriction enzyme that recognizes a 4-8 bp palindromic sequence on the double-stranded DNA.
Answer the following statement true (T) or false (F)