Download Patterns in Nature/Life on Earth Revision Quiz

Patterns in Nature/Life on Earth Revision Quiz
Across
1. Plant tissue made of live cells, composed of sieve
tubes and companion cells
4. Large multicellular organisms have ________
circulatory systems.
6. Urey and ________ performed the experiment that
simulated the creation of the first organic
molecules on Earth
7. These animals appeared as the dinosaurs were
dying out.
9. Life on earth appeared in this order: organic
molecules, ________, procaryotes, colonial
organisms, eucaryotes, multicellular organisms.
11. These are common examples of procaryotic
organisms.
14. Carl ________ discovered that procaryotes can be divided into the eubacteria and archaebacteria.
15. Respiratory surfaces in fish
17. Stage of mitosis where the cytoplasm divides.
20. In the early atmosphere of Earth there was no free ________.
21. Respiratory surfaces in the lungs of mammals where gaseous exchange takes place between the
lungs and the blood.
22. Streaks of red iron ________ in the rocks indicate when photosynthesis first began on Earth.
23. Part of a herbivore's digestive system that contains cellulose-digesting bacteria.
Down
2. Archaebacteria that don't need oxygen and live in bogs, swamps and the guts of cattle.
3. Procaryotes don't have a ________- bound nucleus or organelles.
5. Plant tissue made of dead cells, responsible for carrying water and minerals up plant.
8. Stage of mitosis where the chromatids move to either end of the cell.
10. Archaebacteria that live in extremely salty conditions.
12. The phopholipid layers in the cell membrane have hydrophilic heads and hydrophobic ________.
13. These scaly-skinned creatures appeared on land after the amphibians.
16. If water moves out of a cell, the solute concentration of the fluid outside the cell must be ________.
18. Archaebacteria that live in extremely hot conditions and metabolise sulfur.
19. Colonial procaryotes found in Western Australia that resemble the earliest colonial organisms.