WebGenerally, the brain of fishes is relatively small in comparison to their body size and hence the brain does not occupy the cranial cavity completely, leaving small gap, which is filled … WebMar 12, 2024 · The body of a fish is divided into three main sections: the head, the trunk, and the tail. The head houses the brain and the eyes, the nostrils, and it also contains the mouth. The trunk is the main body of the fish, and it includes the skeleton, the spinal cord, and all of the internal organs. The tail helps to propel the fish through water.
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WebJul 31, 2014 · Stones in fish heads are called fish otoliths. They are among the strangest and most wonderful bits of vertebrate anatomy. They are strikingly sculptural, and their clean surfaces tend to... WebMay 2, 2024 · A high-quality protein: Fish is an abundant source of protein, vitamins, and minerals, such as D, B2, calcium, phosphorus, iron, zinc, iodine, magnesium, and potassium. Seafood can reduce the risk of stroke and also lower blood pressure and the risk of a heart attack. Abundant omega-3 fatty acids: These essential nutrients keep our … raw fish and rice dish
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WebBehavior is controlled by the nervous system. The nervous system is a complex group of tissues and organs that control most body processes. The nervous system has two major divisions: the central nervous system and the peripheral nervous system. The central nervous system consists of the brain and the spinal cord (Fig. 4.82). WebJul 7, 2024 · Scientists have made experimental stone tools and used them to butcher modern animals. There is a strong similarity between the marks their tools made and the marks on fossil animal bones, indicating that early humans used stone tools to butcher animals by at least 2.6 million years ago. Handaxes came in handy. Beginning 1.7 million … WebJan 21, 2010 · The development of stone tools may have signaled the beginning of a change in our ancestors' diets, with an increasing reliance on non-plant foods. Substantial increases in brain size in our ... raw fish and parasites