All of the following are possible consequences of global warming EXCEPT for:
A student observed a plant cell through a microscope and made an accurate drawing of the cell. If her drawing was 80 mm in diameter and had a magnification of ×2000, what was the real diameter of the cell?
Vegetables like cauliflower, cabbage and broccoli have been bred from the original wild brassica plant by:
Single-celled organisms do not need a transport system because:
The length of an insect such as a grasshopper increases in steps.This is because:
Which one of the following is the best way to measure growth of an organism?
Which one of the following diagrams illustrates short-sightedness?
(F = Focal point)
Which one of the following is NOT a harmful effect of smoking?
In the diagram of a section through a synovial joint, the part labelled X represents the:
Malaria is spread by:
Leaves are thin and flat:
Plants lose water through their leaves by the process of:
Which of one the following statements about phloem cells is NOT true?
Which of the following is NOT transported in phloem?
Which of the following statements about diffusion is NOT true?
All of the following are organelles EXCEPT for:
Which of the following substances contains the elements carbon, hydrogen, oxygen and
Which one of the following is NOT a function of the placenta?
Decomposers are important in the process of decay because:
The wall of the left ventricle is thicker than that of the right ventricle because:
Seeds are dispersed from the parent plant:
All of the following can affect the size of a population EXCEPT for:
The site of reabsorption of MOST of the water from the filtrate.
Which of the following are examples of environmental variation in humans?
Ⅰ hair colour
Ⅳ body mass
Which of the following conditions is NOT caused by a poor diet?
The main taxonomic groups in order, starting with the largest, are:
A cell in an embryo divides by mitosis three times in succession. How many cells will be formed from these divisions?
Which of the following statements about lipids is NOT true?
The correct pathway of water through a plant is:
All of the following processes result in energy loss from an ecosystem EXCEPT for:
75 g of freshly dug soil was placed in an oven at 105 ℃ for 24 hours. It was allowed to cool, then reweighed. If the final mass of the dry soil was 66 g, what was the % water content of the original soil sample?
Which one of the following is NOT an inherited disorder?
In a plant, water and dissolved minerals are transported in the:
Which one of the following chemicals is used to test for starch?
Which one of the following is a biological component of a pond ecosystem?
Anaerobic respiration takes place:
The following are all minerals EXCEPT for:
Which one of the following is NOT a receptor in the body?
A balanced diet is one which:
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