Theory

CH16 - REPRODUCTION

What crosses the placenta from fetal blood to maternal blood in larger quantities than from maternal blood to fetal blood? A amino acids B carbon di...

2009 Summer

Theory

CH16 - REPRODUCTION

Fruits can be dispersed by animals or by wind. The table contains descriptions of four fruits. Which fruit will be dispersed by wind?  

2009 Summer

Theory

CH16 - REPRODUCTION

The experiment shown in the diagram was set up to see what conditions are needed for seeds to germinate. Except for tube number 5, all tubes are kept ...

2009 Summer

Theory

CH16 - REPRODUCTION

How does the rhythm method of family planning work?A. A physical barrier stops sperms reaching the egg.B. Implantation is prevented.C. Intercourse is ...

2009 Winter

Theory

CH16 - REPRODUCTION

The diagram shows a flower in section.Where will fertilisation occur?[Image of flower]

2009 Winter

Theory

CH16 - REPRODUCTION

The graph shows the changes in the dry masses of two similar samples of seeds from the start of germination.What causes the change in dry mass after d...

2009 Winter

Theory

CH16 - REPRODUCTION

The diagram shows a bean seed when planted and the same seed two days later. Which conditions are necessary for these changes to occur? [Table_1] ...

2009 Winter

Theory

CH16 - REPRODUCTION

The diagram shows a flower in section. Where will fertilisation occur?

2009 Winter

Theory

CH16 - REPRODUCTION

The diagram shows a bean seed when planted and the same seed two days later. Which conditions are necessary for these changes to occur?[Table_1]

2009 Winter

Theory

CH16 - REPRODUCTION

The graph shows the changes in the dry masses of two similar samples of seeds from the start of germination. What causes the change in dry mass aft...

2009 Winter

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which characteristic is shown when a person smells a gas in the air?A excretionB movementC respirationD sensitivity

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows four arthropods.[Image_1: Four illustrations labeled Pediculus ×20, Anopheles ×10, Dermacentor ×7, Carcinus ×0.5]How many of the...

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

An organism has dry scales covering its body. To which vertebrate group does it belong? A: amphibian B: fish C: mammal D: reptile

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal. Use the key to identify the animal.1 has legs .......................... go to 2 has no legs ...................... go ...

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows four specialised cells.Which feature is not common to all of these cells?A. cell membraneB. cytoplasmC. diploid number of chromosome...

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell.Which labelled structures are found in plant cells but not in animal cells?A P and QB Q and RC R and SD S and T

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows another plant cell.Which feature shows that it is a palisade cell?A a large nucleusB a large vacuoleC a thick cell wallD many chloro...

2011 Summer

Theory

CH6 - PLANT NUTRITION

Which structures are adapted for supporting a plant?A. phloem tissuesB. root hair cellsC. stomataD. xylem vessels

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which describes the structure and function of a red blood cell? [Table_1]

2011 Summer

Theory

CH3 - MOVEMENT IN AND OUT OF CELLS

Boiling potatoes destroys their cell membranes. A peeled, boiled potato strip is placed in a concentrated solution of salts.What takes place?[Table_1]...

2011 Summer