Biology, 29.07.2019 13:30 skyleezarain487
Ascientist found fossils of trilobites in a field. trilobites are now extinct, but lived in water when they were alive. what can the scientist conclude about the field where the fossils were found?
Answers: 1
Biology, 22.06.2019 15:40
Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation
Answers: 1
Biology, 22.06.2019 21:00
An adult inhales about 6.0×10−4 m3 of fresh air during a breath. only 20% of fresh air is oxygen. assume the pressure in the lungs is 1.0×105 paand the air is at a temperature of 300 k. how many oxygen molecules are in each breath? a. 1.4x10^23 b. 2.9x10^21 c. 4.9x10^-4 d. 2.9 x10^25
Answers: 2
Biology, 22.06.2019 21:30
Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. match each type of organism to a characteristic that describes it.
Answers: 2
Biology, 22.06.2019 22:30
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. show the flow of energy in the following ecosystem by labeling each organism's link in the food chain. click once to select a label. click again to place the label in the correct location.
Answers: 3
Ascientist found fossils of trilobites in a field. trilobites are now extinct, but lived in water wh...
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