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This primitive fish was the ancestor of land-dwelling tetrapods (amphibians, reptiles, mammals and birds), although fish of this type still exist in the modern deep ocean:___________ A) Jawless fish. B)
asked
May 25, 2020
Biology
high-school
1
answer
5
votes
162k
views
From earliest to most recent, what is the correct order in which organisms appear in the fossil record? a. dinosaurs, invertebrates, reptiles, mammals b. invertebrates, amphibians, dinosaurs, mammals c.
asked
Dec 24, 2019
Biology
middle-school
2
answers
1
vote
192k
views
The temperature was 4 degrees F at 10pm. It dropped an average of 3 degrees each hour for the next 6 hours. What was the temperature at 4 am?
asked
Sep 20, 2019
Mathematics
middle-school
2
answers
1
vote
58.3k
views
if an object's density is decreasing but its mass stays constant, what must be true of the object's volume?
asked
Jan 10, 2019
Physics
middle-school
1
answer
5
votes
187k
views
In a story, what does a theme do?
asked
Oct 8, 2018
English
high-school
2
answers
5
votes
59.1k
views
A species of seabird nests every year on the face of one wall of cliffs on one island. If these birds nest on the ground above the cliffs, they run a high risk of having their eggs eaten by predatory snakes.
asked
Feb 4, 2018
Physics
middle-school
2
answers
5
votes
186k
views
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