How Plants Defend Themselves Against Pathogens and Herbivores.
Introduction Plants cannot run away from danger. Instead, they have to stand and fight. Like humans and other animals, plants...
Introduction Plants cannot run away from danger. Instead, they have to stand and fight. Like humans and other animals, plants...
A person’s blood type is determined by certain antigens found on the red blood cell surface. These antigens are clinically...
Introduction In combination with the leukocytes involved in the innate immune system, the cells of the adaptive immune system are...
Adaptive immunity Adaptive immunity is a vertebrate-specific defense mechanism that recognizes specific molecules as being foreign and clears those molecules...
Introduction: The body’s defense makes up the immune system, which enables an animal to avoid or limit many infections. The...
The lymphatic system, which is closely associated with the cardiovascular system, has four main functions that contribute to homeostasis: Lymphatic...
Cells form a working animal body through their emergent properties, which arise from successive levels of structural and functional organization....
Nest building behavior in lovebirds. Lovebirds are small, green, and pink African parrots that nest in tree hollows. There are...
Introduction Imagine for a moment what it would be like to have no memory. You wouldn’t recognize anyone or anything...
Introduction All organisms sense and interact with their environments. This is particularly true of plants. Plant survival and growth are...
Classroom grouping strategies and cooperative learning may be the most flexible and powerful strategies if used appropriately. It allows students...
Plant nutritional requirement Introduction. Plants are unique organisms that can absorb nutrients and water through their root system and carbon...
Simplified and concise note on Plant Hormones Introduction Flowering plants perceive and react to a variety of environmental stimuli. Examples...
1. The state of candle wax can be changed if the energy it contain is : A. decreased B. increased....
1. Which of the following changes do NOT occur in females during puberty? A. Deepening of voice B. Enlargement of...
Content: Introduction Scientific principles involved in soap production. The steps involved in traditional soap is production. Ways of improving the...
Content; Rabbit and its importance General characteristics of rabbits Some common breeds of rabbits How to select a good breed...
What is Biotechnology? Biotechnology is the use of living organisms to either make or change products to improve human life....
The Principles of Canning and How to Can Your Food At Home. The purpose of canning is to destroy the...
List three major groups of photosynthetic organisms. Plants Algae Cyanobacteria Which part of a chloroplast absorbs solar energy, and which...