EduNinja
[Maximum number: 2]

The Visayan warty pig, Sus cebifrons, is found on two islands in the Philippines.
Fig. 1.1 shows a female Visayan warty pig with her young.

Fig. 1.1

Fig. 1.1

(a)

Table 1.1 shows part of the classification of the Visayan warty pig.

Complete Table 1.1.

Table 1.1

Table 1.1

[ 2 ]
[Maximum number: 1]

Biodiversity can be assessed at three different levels. One of these is the genetic variation within each species.

(a)

Table 2.1 shows the mean number of nucleotide differences per site of some species.

Table 2.1

Table 2.1

[ 1 ]
(i)

State the genus name of the species that shows the most genetic variation.

[ 1 ]
[Maximum number: 3]

Fig. 5.1 shows a raccoon, Procyon lotor. This species is native to North America. Four individuals were released in Germany in 1934. There are now thought to be more than a million raccoons in Germany.

Fig. 5.1

Fig. 5.1

(a)
(i)

Outline three characteristic features of members of this domain.

1
2
3

[ 3 ]
(a)

The sea otter, Enhydra lutris, is a marine mammal that lives on the coasts of the North Pacific ocean.

Fig. 6.1 shows a sea otter.

Fig. 6.1

Fig. 6.1

Table 6.1 shows part of the classification of the sea otter.

Table 6.1

Table 6.1

Complete Table 6.1 by adding the correct taxonomic groups in the two spaces provided.

[ 2 ]
[Maximum number: 1]

An investigation was carried out in a temperate woodland that contained a number of areas with two different types of ground cover vegetation.
- On higher ground where the soil was drier, the dominant ground cover plant was bracken, Pteridium aquilinum.
- On lower ground where the soil was wetter, the dominant ground cover plant was bramble, Rubus fruticosus.

(a)

Soil from under bracken and under brambles was collected and placed in two funnels. A bright light was placed over each funnel so that small invertebrate animals moved down the funnels and were collected in two collecting vessels.

The main groups of invertebrates present were identified and counted. Some of the results are shown in Table 8.1.

Table 8.1

Table 8.1

[ 1 ]
(i)

It was not possible to identify the invertebrates as far as genus or species level, and only the wireworm group could be classified as far as the taxonomic level above genus.

Name the taxonomic level represented by the wireworm group.

[ 1 ]
(a)

Most organisms are classified according to a taxonomic hierarchy.
The hierarchy is shown in Fig. 8.1 but the group names are not in the correct order.
1 - kingdom
2 - order

3 -genus
4 - family
5 - domain

6 - class

7 - species
8 - phylum
Fig. 8.1
Complete Table 8.1 by writing the numbers in the correct order.

Table 8.1

Table 8.1

[ 2 ]
(a)

Outline the characteristic features of organisms in the domain Eukarya.

[ 8 ]
0