Biology, 29.01.2020 05:03, chantihock05
1. a central crack forms where a thin section of earth’s crust breaks and molten rock seeps out. which geologic feature would result from this?
> volcano
> earthquake
> glacier
> shoreline
2. which geologic feature occurs at a convergent boundary?
> an ocean ridge
> an aperture
> a rill
> an earthquake
3. the theory of plate tectonics states that the earth’s surface is
> one solid piece
> broken into many pieces
> mostly covered in water
> very thick
4. plate tectonics explains which of the following?
> mudslides
> tornadoes
> ocean currents
> trenches
5. alfred wegener suggested that earth’s continents are moving. which evidence supports this theory?
> different types of of rocks on opposite coasts
> close geometric correspondence of continental coastlines
> revolution of the earth
> similarities in human fossils
6. what forms when the earth’s plates slide past each other?
> a volcano
> a glacier
> an ocean mountain
> an earthquake
7. how did wegener explain the fact that ancient horse fossils showed up on different continents?
> the horses swam between the two continents.
> the continents were at one time joined together.
> the fossils were moved by humans.
> the fossils must be of different species.
8. what is the most likely cause of plate movement?
> radiation from the sun
> heat convection within the earth
> movement of ice sheets
> cold air currents on earth’s surface
9. when mantle plumes (or hot spots) erupt underneath moving plates, which geologic feature results?
> earthquakes
> volcanic islands
> trenches
> divergent zones
10. there are some areas of the world where more than two plates react in complex ways. one example of this is near spain where three plates are moving together. what do we call these areas?
> plate boundary zones
> continental shelf zones
> trench zones
> the ring of fire
13. what causes an earthquake?
> hard collisions between tectonic plates
> extreme rock deformation
> buildup of magma
> buildup of pressure between tectonic plates
Answers: 3
Biology, 22.06.2019 00:10, tami5
Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy
Answers: 2
Biology, 22.06.2019 06:00, nauticajanke03
The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.
Answers: 1
1. a central crack forms where a thin section of earth’s crust breaks and molten rock seeps out. whi...
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