Which of the following organisms are NOT ultimately dependent on sunlight for energy?
A) species that live in hydrothermal vent habitats
B) migratory bird species
C) marine species that live in the aphotic zone
D) trees that have experienced "flagging"
A
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Mammals and birds eat more often than reptiles. Which of the following traits shared by mammals and birds best explains this habit?
A) endothermy B) ectothermy C) insulating body cover D) amniotic egg E) terrestrial
Horizontal gene transfer is less prevalent in eukaryotic species because
A. of the presence of organelles in the cells of eukaryotic species. B. of the multicellularity in eukaryotic species, which is laking in prokaryotic species. C. eukaryotic species reproduce by sexual reproduction. D. of multicellularity and sexual reproduction. E. of the presence of organelles and multicellularity.
Which of the following is NOT characteristic
of cancer tissue?
a. retention of adhesion proteins b. increased vascular flow c. malformed cytoskeleton d. abnormal chromosome number e. all of these are characteristic of cancer tissue
Which statement is NOT true about ferns?
Select one: a. The gametophyte stage lacks vascular tissue. b. The sporophyte stage lacks vascular tissue. c. Antheridia and archegonia develop on the prothallus of the gametophyte stage. d. Fertilization requires moisture for the sperm to swim to the egg within the archegonia. e. The sporophyte stage is the dominant generation.