Which of the following are used by species for navigation? (Check all that apply.)
_____ landmarks
_____ magnetic fields
_____ phases of the moon
_____ stars
_____ the sun
__X__ landmarks
__X__ magnetic fields
_____ phases of the moon
__X__ stars
__X__ the sun
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In order to use the energy stored in sugars, what must the cells must first transfer it to? How does the energy transfer occur?
What will be an ideal response?
Non-flowing water ecosystems, such as ponds and lakes, are also called ________ ecosystems
Fill in the blank(s) with correct word
The remaining energy in the producer level that is available for consumers is the
A. gross primary consumption. B. net primary consumption. C. gross primary production. D. net primary production.
Fatty acids esterified to glycerol in the lipid bilayer having one or more unsaturated sites is less flexible than one with where all sltes are saturated.
a. true b. false