You are most likely to see hag fish, sperm whales, and viperfish inhabiting which of the following zones of the ocean?
a. abyssal
b. bathypelagic
c. epipelagic
d. mesopelagic
Ans: b. bathypelagic
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The behavior of parental care exhibited by dinosaurs is thought to be __________ to this behavior in crocodiles and birds because phylogeny shows that these three groups share a common ancestor.
Fill in the blank(s) with the appropriate word(s).
Metallic ions such as Ca2+, Na+, and Fe3+ readily form ____
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds
During normal DNA replication, part of the sequence at the ends of linear chromosomes is not copied into the new
DNA strands because ____.
a. DNA ligase cannot join pieces at the end of a chromosome b. RNA primers at the beginning of a new strand cannot be replaced with DNA c. those ends are Okazaki fragments that are lost d. cells do not need the DNA at the ends of chromosomes e. the ends of chromosomes are made of protein, not DNA
The Chlamydiae life cycle has two forms: the ________, which is the vegetative form, and the ________, which is the dispersal form
a. elementary body / reticulate body b. reticulate body / elementary body c. hypha / conidium d. conidium / hypha