In this article we will discuss about the meaning and stages of oestrus cycle in female vertebrates. Meaning of Oestrus Cycle: During breeding season the vertebrate female undergoes hormonal changes influencing reproductive organs, inducing histological changes leading to development of eggs. The cycle is called Oestrus cycle. In this period the female permits sexual mating. This is called heat-period or [...]
Get the answer of: How to prepare skeleton of animals. All the bones together of a vertebrate constitute the endoskeleton. The bones are articulated in such a fashion that in addition to support the body weight and allowing free movements of body parts, it forms the framework and gives shape and rigidity to the body and also protect the internal [...]
In this article we will discuss about the collection and structure of arthropods. Arthropods are collected in different ways. Those living in open are sensitive to light and collected by light trap. Those living in soil are extracted by application of heat. I. Light Trap: Some insects are attracted by light. Light trap is used to collect them. The light [...]