biology working models including botany and zoology working models
Introduction: Seed germination is the process in which a seed grows into sprout. Most of the seeds do not need sun light and they sprout naturally with very little water. Seeds can be a small package in a fruit after the fusion of male and female reproductive cells. The fully developed seeds contain food restores … Read more
Introduction: Butterflies are day-flying insects that also belong to the class of moths from which they evolve. A butterfly starting from the stage of larvae grows into adult through different stages. There are mainly four stages. Each stage is different and has a different goal. The life cycle process that the butterfly goes through is … Read more
Introduction: Cockroaches before they develop completely go through three stages. The life cycle of the cockroach spans six months to one year to complete. Usually, the female cockroach lays 20-40 eggs. The mother cockroach carries her eggs in a sac called as ootheca. Most of the cockroaches are oviparous. It means that the eggs are … Read more
Introduction: Cells in any living body play very crucial role in proper functioning of the body. Animals cells have nucleus which are membrane bound. The animal cells are called as eukaryotic cells where the DNA of the animals is inside the nucleus. Apart from this, the nucleus also has tiny structures that perform necessary cellular … Read more
Introduction: The plant cells are called as eukaryotic cells that are present in the green plants. Plant cells are very different from the animal cell structure. The plant cells have many categories which forms the root, leaves, stem. They also have reproductive structures which many other types of cells within them. The crucial process that … Read more
Introduction: The respiratory system includes nose, pharynx, larynx, trachea, bronchi and lungs. Lungs are the pair of organs that look like air filled balloons located on either side of the chest. Lungs are responsible for pumping the oxygen into the blood through the process of respiration. In this process, air is breathed through the mouth, … Read more
Introduction The human respiratory system is the most important part that helps in the proper functioning of the body. It supplies oxygen to the blood so that the blood is supplied to all parts of the body. Cells in the body use the oxygen as fuel and release carbon dioxide as waste gas. This waste … Read more
Introduction Imagine humans and animals stay alive through food and water. Similarly, plants also need food and water to stay alive. This process where the plants survive is called as photosynthesis. Plants breathe carbon dioxide from the air and release oxygen back into the air. They also use the sunlight and water to carry out … Read more