Number 1 is fraternal (also known as dizygotic)
also sorry i don't know the second one
<span>Three anatomical features that birds share with their theropod ancestors are:
</span><span>1. they had light, hollow bones
</span>2. they rearranged hip and leg muscles because this of <span>improved bipedal movement
</span>3. they had their flight oriented with the use of wings for balance
<span>
Thin skin contains four layer(s) of keratinocytes, and thick skin contains five layers.
-4,5
-Hope this helps</span>
Answer:
it protects aquatic life from changes in air temperature
Explanation:
Waning gibbous
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