People often talk about each of our “carbon footprints.” What do you think that means?
a. how much carbon dioxide we exhale
b. how much carbon dioxide we inhale
c. how much carbon dioxide is generated from photosynthesis
d. how much carbon dioxide is generated from the burning of fossil fuels to sustain one’s
lifestyle
D
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Which idea(s) were established well before Darwin's time?
a. Offspring frequently resemble their parents.
b. Offspring inherit genes from their parents. c. Selective breeding improves domesticated plants and animals. d. Offspring frequently resemble their parents and selective breeding improves domesticated plants and animals. e. Offspring frequently resemble their parents, offspring inherit genes from their parents, and selective breeding improves domesticated plants and animals.
Why do most replication errors occur?
a. DNA polymerases work very fast and mistakes are inevitable. b. DNA repair mechanisms do not work well. c. DNA replication is a slow and uncommon process. d. The hydrogen bonds between base pairs are weak. e. DNA ligase often binds incorrect sections of DNA.
How are some protists of commercial value?
What will be an ideal response?
From the outside to the inside, which is the correct order of tissues in a eudicot root?
a. epidermis>>cortex>>endodermis>>vascular tissue b. epidermis>>endodermis>>vascular tissue>>cortex c. endodermis>>cortex>>epidermis>>vascular tissue d. epidermis>>vascular tissue>>endodermis>>cortex e. endodermis>>epidermis>>cortex>>vascular tissue