Organisms capable of producing their own food are known as
a. autotrophs.
b. heterotrophs.
c. omnivores.
d. Herbivores.
b
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Given that humans shifted from hunter-gathers to an agriculturally based society within the last 10,000 years does NOT mean that ________
A) we cannot expect evolution by natural selection in human populations to have kept pace with our changing way of life B) humans still retain many, if not most, of the features that made us well adapted to living in the hunter-gatherer societies of the stone age C) we can use knowledge of the differences between our current lifestyle and the lifestyle of our pre-agricultural lifestyle to better understand both the peculiarities of humans and risks associated with our modern lifestyle D) humans are unique in that we have the capacity evolve by natural selection much more rapidly in response to changes in our environment than other organisms do
Homologous chromosomes can be matched by their similar structure and function within a nucleus. Which chromosomes making up a genome do not follow the same characteristics of homology?
What will be an ideal response?
Tanning increases the number and density of melanocytes in the epidermis
Indicate whether the statement is true or false
Which of the following organisms is mismatched with their organs of excretion?
A. Malpighian tubules - reptiles B. Kidneys - humans C. Earthworms - nephridia D. Planarians - flame cells