Haversian canals are characteristic of which tissue?
1.adipose
2.bone
3.cartilage
4.epithelial
5.muscular
2
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What is the primary characteristic that groups phyla within the Ecdysozoa?
A. They all have tropchophore larvae. B. They shed their exoskeletons. C. They all have spiral cleavage. D. They all have segmentation.
Which of the following is the strongest
evidence for the idea that present-day eukaryotic aerobes are the descendants of the successful symbiotic association of anaerobes and aerobes? a. Mitochondria can produce ATP. b. A mitochondrion can survive indefinitely when removed from a eukaryotic cell. c. A mitochondrion has its own set of DNA molecules. d. Fossilized mitochondria are older than the oldest fossilized eukaryotes. e. All eukaryotic cells have mitochondria
Pollination is occurring at the point of Figure 28-2 labeled:a
Process A. b. Process B. c. Process C. d. Process D. e. Process C and also Process D.
Some trichomes function as protective stinging needles. Indicate whether the statement is true or false