If animals in the frog family are the first true tetrapods, then the first tetrapods were? Answer choices: - major threat to health - remains of prehistoric life - in the frog family - running and lifting - competing for resources - warm-blooded - objects that have mass - graptolites
in the frog family

If whales have a layer of fat under the skin to help insulate the body, then what have a layer of fat under the skin to help insulate the body? Answer choices: - animals - dermis - humans - bears - whales - goats - insects - h2o
whales

Q: If nectar can be essential for fruit production, then what can be essential for fruit production? Answer choices: - hormones - food - ribosomes - gene flow - nectar - Collagen - Enzymes - seeds
A: nectar

Question: If hummingbirds co-evolved with plants, then hummingbirds are what they are today as a necessary consequence of their relationship to what? Answer choices: - a feeder - humans - bees - survival - animals - Plants - Earth - weeds
Answer: Plants

*Question*
If ducks can move fast through water, then what can move fast through water? Answer choices: - animals - squids - lead - sharks - ice - snails - ducks - rivers
**Answer**
ducks

If glass can protect plants from cold, then what can protect plants from cold? Answer choices: - keratin - habitat - trees - heat - glass - Light - fibers - peat
glass