Select all of the statements that only describe the species richness for an area.Multiple select question.There are 40 species of insects in the field and they are equally spread out.There are 25 animal species on the island.There are 10 reptile species in the area but their ranges don't overlap much.The number of plant species in the pond dropped from 14 to 11 last years.

Select all of the statements that only describe the species richness for an area.

The number of different species in a pond is a reference toMultiple choice question.biomes.extinction.biomagnification.biodiversity.

An example of high species richness isMultiple choice question.a community consisting of pioneer species.the dominance of one species in an ecosystem.the 15 individuals of large-mouth bass in a lake.the 15 different fish species in a lake.

Counting the number of species in a habitat is a measure ofMultiple choice question.species succession.biomass.species richness.net primary production.

Question 2.2The information in the table is a record of the number of different animalspecies in South Africa and in the world.Taxon Number of species in SA Number of species in the worldVERTEBRATES X 59813Mammals 318 5417Birds 793 9958Reptiles 171 5242Amphibians 287 6200Fish Freshwater 120 9413Marine 3331 20593INVERTEBRATES 66184 1203377Insects – 950012Molluscs – 81000Crustaceans – 40000Corals – 217710Question 2.2.1 [1 mark]How many vertebrate animal species (X) occur in South Africa?Question 2.2.2 [3 marks]What percentage of the total number of marine fish in the world is representedby the South African marine fish? Show all your work.Question 2.2.3 [1 mark]According to the table, which invertebrate animal species contributes the mostto biodiversity in the world?Question 2.2.4 [4 marks]Explain TWO ways in which humans would be affected if all the insects were tobecome extinct.[9 marks]Question 2.3The apparatus shown below was used in an investigation to determine the effectof light intensity on the rate of photosynthesis.11