Grade 10 Life Sciences (TVM)

The diagrams illustrate:

• Tectonic Plates

• Continental drift

• Asteroid Impact

• Volcanic activity

The correct sequence of events of the above diagram is:

• 4,3,2,1

• 1,3,4,2

• 1,2,3,4

• 1,4,3,2

The same reptile fossil species is recorded in:

• Five different continents

• Africa, South America and Australia

• Africa and South America

• India, Madagascar and Antarctica

According to this map, the fossil remains of Glossopteris, a fern like gymnosperm tree, appears to be:

• Found on all the continents of the world

• The best index fossil to use to identify rock layers of 200–300 years old

• The first flowering plant to evolve in these southern continents

• The only producer in the food chain during the Permian period

Lystrosaurus and Cynognathus are:

• Herbivorous dinosaurs

• Mammals

• Mammal-like reptiles

• Carnivorous dinosaurs

The fossil distribution shown on these continents provides direct evidence:

• Of the influence of climate change on the distribution of organisms

• Of the rise and fall of sea levels

• Of the changes in gases in the Earth’s atmosphere

• For the theory of plate tectonics, e.g. continental drift

The continents that are shown are fragments of a supercontinent called:

• Pangaea

• Laurasia

• Gondwana

• Rodinia

Which one of the following groups of organisms had the most families over a period of more than 500 million years?

• Marine Invertebrates

• Insects

• Tetrapods (four-legged animals

• Vascular plants

Identify the independent variable shown in this graph:

• The rise and fall of insect families

• The passage of time

• The increase of vascular plants

• The evolution of tetrapods

The numbers 1 and 2 represent the:

• The two most severe extinctions in the history of life

• End-Devonian and End-Triassic mass extinctions

• End-Ordovician and Late-Devonian extinctions

• The only two mass extinctions that occurred in the Palaeozoic era