IB Biology

To which group do sponges belong?

• Cnidaria

• Filicinophyta

• Porifera

• Mollusca

An animal has radial symmetry, a sac-like body with only one opening and tentacles with stinging structures. To which phylum does this animal belong?

• Annelida

• Cnidaria

• Mollusca

• Porifera

Tags

NGSS.MS-LS4-2

Which taxa do Zerynthia rumina and Zerynthia polyxena share?

• They share the same class but not the same family.

• They share the same species but not the same class.

• They share the same class but not the same genus.

• They share the same family but not the same species.

Tags

NGSS.MS-LS4-2

Two different trees have been classified as Pinus pinea and Pinus nigra. Which of the following statements is correct?

• Both trees belong to the same class but a different genus.

• Both trees belong to the same family and same genus.

• The species name of both trees is Pinus.

• The family names are pinea and nigra

Tags

NGSS.MS-LS4-2

Based on binomial nomenclature, which two species are most closely related?

I. Common barberry (Berberis vulgaris)

II. Canadian bunchberry (Cornus canadensis)

III. Smooth blackberry (Rubus canadensis)

IV. Canadian barberry (Berberis canadensis)

• I and IV

• II and III

• II and IV

• III and IV

Tags

NGSS.MS-LS4-2

Ranunculus repens and Hypericum repens both have yellow flowers. Which statement is true?

• They are angiospermophytes.

• They are coniferophytes.

• They are members of the same species.

• They are members of the same genus.

Which sequence of taxonomic groups from largest to smallest?

• phylum, order, class, species, genus

• kingdom, family, class, genus, species

• phylum, class, order, family, species

• kingdom, phylum, family, order, genus

In classification, which statement is true?

• If two organisms belong to the same order, then they are in the same genus.

• If two organisms are in different orders, then they cannot be in the same class.

• If two organisms are in the same class, then they must be in the same phylum.

• If organisms have the same genus name, they must also have the same species name.

An organism has the following characteristics:

• single opening for egestion and ingestion
• radial symmetry
• tentacles with stinging cells

• Annelida

• Cnidaria

• Platyhelminthes

• Porifera

The scientific name of the great egret has recently been changed from Casmerodius albus to Ardea alba. What is a possible reason for the reclassification of egrets?

• Allopatric speciation

• Discovery of different ancestry

• A change in the mating behaviours

• Change in habitat and geographic range