Answer:
<em>Carbon </em><em>dioxide</em><em> </em><em>is </em><em>necessary</em><em> </em><em>for </em><em>photosynthesis</em><em> </em><em>because </em><em>plants </em><em>make </em><em>their</em><em> </em><em>food </em><em>only </em><em>in </em><em>the </em><em>presence</em><em> </em><em>of </em><em>carbon </em><em>dioxide</em><em> </em>
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Answer:
Explanation:
Birds with longer, thinner bills, such as hummingbirds, bananaquits, and sunbirds, insert their bills into the flower so they can lick at the nectar directly. ... Nectar-eating birds are called nectivorous if nectar does make up a large proportion of the majority of their diet, such as with hummingbirds.
Half life: time taken for the radioactivity of any isotope to fall to half its original value
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