The coordination centre, such as the brain, spinal cord or pancreas, which receives and processes information from receptors around the body.
The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent
Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field.
Which sex chromosomes are present in all mature human sperm cells? A both X and Y chromosomes B either X or Y chromosomes C only X chromosomes D only Y
Transport in plants refers to the movement of water, nutrients, sugars, and other substances within a plant's body. There are two main types of transport in plants:
These questions cover various aspects of genetics and can serve as a starting point for exploring the fascinating field of genetics and heredity.Answers to Questions above.What is genetics? Answer: Genetics
For a science student, having the right tools and materials in their bag can significantly aid in studying, experimenting, and understanding scientific concepts. Here are some basic essentials a science
In the intricate tapestry of the natural world, there exists a phenomenon both fascinating and unsettling: intraspecific killing, the act of animals killing their...
Enzymes are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different
1.(a) Describe the structure of the heart. (7) Marks) (b) Describe the events of the cardiac cycle in humans.( 8Marks) 2.(a)Describe the process of digestion in the (2 Marks) i.
(i)What is the average resting rate of the human heart in beats per minute? (ii) State one factor that decreases heart rate and one factor that increases it. (b) The
(a) (i) Complete the following equation, which is a summary of aerobic respiration. C6H12O6 + 6O2 (ii) Aerobic respiration is a two-stage process. The first stage takes place in the
The typical imperative from biology is not "Thou shalt... ," but "If ... then ... else.” ― Steven Pinker, How the Mind Works
1. Which of the following organs has no role in digestion of food? A. Pancreas B. Spleen C. Liver D. Salivary glands 2. By which one of the following processes
(i) What is a tissue? (ii) Name two vascular tissues found in flowering plants. (9) (b) The diagram shows part of a root of a young plant. (i) Make an
Transportation in Animals. Transportation in animals is the movement of food, water, and oxygen to different parts of the body.
Fear keeps us focused on the past or worried about the future. If we can acknowledge our fear, we can realize that right now we are okay. Right now, today,
Laboratory safety is essential when working in a science laboratory to protect yourself and others and to ensure accurate and reliable results. Here are some general science laboratory rules that
Birds are remarkable creatures, capable of feats that often leave us in awe. Flight is one of their most