Nervous System
The nervous system is the body part of an animal that coordinates its behavior and transmits signals between different regions of the body. The nervous system detects environmental changes affecting the body, then works in…
Topics: Animal Kingdom
Bioluminescence
Bioluminescence is defined as the emission of light from a living organism that works for its survival or reproduction. It is the result of a “cold” light, a specific biochemical involved in chemical processes, which…
Characteristics of Vertebrates
Some of characteristics of Vertebrates are Describe below. The Vertebrates have some distinguishing characteristics as the invertebrates have. The main characteristic of the vertebrates are, they have vertebral columns, skeletons within the bodies. They have wings…
Characteristics of Invertebrates
Some of characteristics of Invertebrates are Describe below. Invertebrates do not have vertebral columns. These animals do not have any skeleton. Their eyes are simple. Sometimes they have many small eyes gathered together into one eye,…
Explain Frog Female Reproductive System
Frog female reproductive system: The female reproductive organs include a pair of ovaries (Figure). The ovaries are situated near kidneys and there is no functional connection with kidneys. A pair of oviduct arising from the…
Explain Frog Male Reproductive System
The frog is a unisexual animal with simple sexual dimorphism. The reproductive system of a frog is dependable for producing gametes which are free in water for fertilization. Generally, female frogs are smaller than males…
Describe Vascular System of Frog
The vascular system of frog is well developed closed type. Frogs have a lymphatic system also. The blood vascular system involves heart, blood vessels and blood. The lymphatic system consists of lymph, lymph channels and…
Explain Anatomy of Frog
Anatomy of Frog: The body cavity of frog accommodates different organ systems such as digestive, circulatory, respiratory, nervous, excretory and reproductive systems with well developed structures and functions (Figure). The digestive system consists of alimentary canal…
Explain Morphology of Frog
Morphology of Frog: The skin of frog is smooth and slippery due to the presence of mucus. The skin is always maintained in a moist condition. The color of dorsal side of body is generally…
Explain Nervous System of Cockroach
The nervous system of cockroach consists of a series of fused, segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side. Three ganglia lie in the thorax, and six in the abdomen. The…
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