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

CH14 - CO-ORDINATION AND RESPONSE

(a) Fig. 1.1 is a diagram showing the position of some organs in the human body. Some of the organs shown in Fig. 1.1 are endocrine glands. Table 1.1...

2021 Spring

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Fig. 2.1 is a diagram of a prokaryotic cell. Fig. 2.1 (i) State one visible feature in Fig. 2.1 that identifies this cell as a prokaryotic cel...

2021 Spring

Theory

CH9 - TRANSPORT IN ANIMALS

(a) The activity of the heart can be monitored using different methods.Fig. 3.1 shows two ECG traces. One trace was recorded when the person was at re...

2021 Spring

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

(a) A leaf can be described as an organ.Define the term organ............................................................................................

2021 Spring

Theory

CH10 - DISEASES AND IMMUNITY

(a) Measles is a transmissible disease.The percentage of the population that were vaccinated against measles in a country was determined.The number of...

2021 Spring

Theory

Food Webs

(a) Fig. 6.1 shows a food web. (i) State the number of trophic levels in the food web in Fig. 6.1. [1] (ii) State the name of one organism that fe...

2021 Spring

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What is a characteristic of all living organisms?

2021 Summer

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The table shows a section of DNA taken from four different organisms.[Table_1]Which two organisms are the most distantly related to each other?

2021 Summer

MCQ

Animal Kingdom - Arthropods and Vertebrates

Scientists discover a new species of animal. It has a segmented body with two pairs of legs on each segment. To which group of animals does this new s...

2021 Summer

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a single-celled organism called *Euglena*. Which labelled structures would also be found in an animal cell?

2021 Summer