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

Biology & Microbiology

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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?

Biology & Microbiology

Non-flowing water ecosystems, such as ponds and lakes, are also called ________ ecosystems

Fill in the blank(s) with correct word

Biology & Microbiology

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.

Biology & Microbiology

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

Biology & Microbiology