Biology, 04.02.2020 05:45 princesskoi8561
Which one of the following statements about endosymbiosis and the origin of the eukaryotic cell is false?
1. the chloroplasts of red and green algae are the descendants of cyanobacteria.
2. ultimately, both the chloroplast and the mitochondria of eukaryotes are descendants of prokaryotic cells.
3. many compartments of the eukaryotic cell are derived from the endomembrane system.
4. algae incorporated prokaryotic cells that became chloroplasts, but never acquired mitochondria.
5. mitochondria are the descendants of purple bacteria.
Answers: 2
Biology, 21.06.2019 22:20
Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3
Answers: 1
Biology, 23.06.2019 01:30
Aprimary producer stores 9,000 kcal. in the energy pyramid, if a primary producer is consumed by a first-level consumer, and that first-level consumer is consumed by a second-level consumer and the second-level consumer is consumed by a third-level consumer, how much energy is stored by the third-level consumer from the primary producer? *
Answers: 1
Which one of the following statements about endosymbiosis and the origin of the eukaryotic cell is f...
Mathematics, 25.03.2020 21:17
Mathematics, 25.03.2020 21:17
History, 25.03.2020 21:17
Mathematics, 25.03.2020 21:17
Mathematics, 25.03.2020 21:17
Mathematics, 25.03.2020 21:17
Mathematics, 25.03.2020 21:17
English, 25.03.2020 21:17
Spanish, 25.03.2020 21:17
Mathematics, 25.03.2020 21:17
Mathematics, 25.03.2020 21:18