Explain the key differences between gradualistic equilibrium and punctuated equilibrium.
What will be an ideal response?
Gradualistic equilibrium is when new species evolve from a series of small changes that occur constantly over time. This results in transitional forms. Punctuated equilibrium is when species evolve from a series of abrupt, rapid changes after a period of little or no change. This results in few transitional forms.
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An examination of the arrangement of bones in the hand is an example of a(n) ____
a. ecological study b. taxonomic study c. anatomical study d. physiological study e. homeostatic study
The ________ is an extraembryonic membrane that surrounds the embryo and serves to protect and cushion the embryo
Fill in the blank(s) with correct word
Currently, the influenza viruses used for manufacturing vaccines are grown in
a) Petri dishes. b) cell cultures. c) egg embryos. d) test-tube slants.
James and Sally wanted to have a baby but were not having any luck, so they decided to try an artificial means of conception. They eventually were directed to a laboratory, where sperm and eggs were placed in a dish. This allows a sperm to merge with the
egg as it would in the oviduct. This procedure is called ________. A) surrogate motherhood B) in vitro fertilization C) gamete intrafallopian transfer D) zygote intrafallopian transfer