According to the fossil record found in these sedimentary layers, what conclusion can be drawn about animal life in general? a) animals did not move on to land until flowering plants evolved. b) vertebrates appeared in the oceans before they moved on to land. c) vertebrates evolved on land and in the oceans at about the same time. d) shelled animals and fish appeared in the oceans at about the same time.
Answers: 2
Biology, 22.06.2019 00:10, haileysolis5
Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c
Answers: 2
Biology, 22.06.2019 03:40, joannachavez12345
Organisms that successfully adapt will leave to grownone of the above
Answers: 1
Biology, 22.06.2019 09:00, nireegnu
The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer
Answers: 2
Biology, 22.06.2019 13:00, lays20001
How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?
Answers: 3
According to the fossil record found in these sedimentary layers, what conclusion can be drawn about...
Mathematics, 20.03.2020 23:27
Mathematics, 20.03.2020 23:27
Chemistry, 20.03.2020 23:28
Mathematics, 20.03.2020 23:28
Biology, 20.03.2020 23:28
Mathematics, 20.03.2020 23:28
Physics, 20.03.2020 23:28