Succession in abandoned farms (“old fields”) takes at least 100 years, and therefore is often reconstructed using ____

a. field experiments
b. laboratory experiments
c. historical records
d. evolutionary records
e. fossil records


ANSWER: c

Biology & Microbiology

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In 1880, Walther Flemming identified ________, threadlike bodies seen in dividing cells

Fill in the blank with correct word.

Biology & Microbiology

Draw a cladogram that for the following animals: sponges, cnidarians, flatworms, echinoderms, chordates, molluscs,

annelids, nematodes, and arthropods. On your cladogram indicate the points where the following evolved: 1) true tissues, 2) bilateral symmetry, 3) three germ layers, 4) segmentation, 5) protostome development, and 6) deuterostome development. What will be an ideal response?

Biology & Microbiology

These slender, or gracile, australopithecines are found later in the fossil record than A. afarensis

A) founder effect B) Homo Habilis C) Latin binomial D) Australopithecus Africanus E) convergent evolution F) Ardipithecus ramidus G) Neanderthals H) chimpanzees I) Homo erectus J) astragalus

Biology & Microbiology

These organelles make lipids

a. ribosomes b. smooth endoplasmic reticula c. Golgi bodies d. lysosomes e. mitochondria

Biology & Microbiology