SS1 Biology second term

Which of the following is not an adaptation by fish to the aquatic habitat

• Scales

• Teeth

• Streamlined shape

• Fin

Which of the following factors will most likely lead to overcrowding within a population

• Absence of predator

• Emigration

• Food shortage

• Absence of territorial behaviour

Which of the following organisms exist as a filament

• Euglena

• Amoeba

• Volvox

• Spirogyra

The following conditions form the basis of competition in a habitat except

• Food

• Space

• Reproductive mate

• Body structure

Rhizobium which lives in the root nodules of leguminous plants is an example of the association known as

• Commensalism

• Epiphytism

• Mutualism

• saprophytism

Which of the following characteristics is not associated with monocotyledonous plants

• Well differentiated sepals and petals

• Presence of fibrous root system

• Presence of narrow leaves

• Floral part are in multiple of three

Which of the following is the lowest level of classification

• Order

• Genus

• Species

• Phylum

Cells that utilize a lot of energy are characterized by the presence of a large number of

• Vacuole

• Mitochondria

• Endoplasmic reticulum

• Ribosomes

The branch of Biology that deals with the principles of classification of organism is known as

• Biological index

• Nomenclature

• Taxonomy

• Cytology

The first step in carrying out ecological studies in terrestrial habitat is a. b. c. d.

• Quadrat sampling

• Mapping the area

• Collection of organisms

• Measuring abiotic factors