Protostomes develop a mouth first and then an anus. This is the difference between protostomes and deuterostomes.
In protostome development, there is a spiral radical and indeterminate cleavage. The blastopore becomes the mouth and the coelom forms from the mesoderm.
In deuterostomes development, radial and indeterminate cleavage takes place. The blastopore is the new anus and the coelom forms from budding off the wall of the archenteron.
Answer:
The system of nerves that govern reflexes, glands, the iris of the eye, and activities of interior organs that are not subject to voluntary control is called the <u>autonomic nervous system</u>
Explanation:
The autonomic nervous system is the involuntary division of the nervous system. It is composed of nerve cells that are related to the innervation and control of visceral organs, smooth muscle and secretory glands. It is divided into two systems, the sympathetic nervous system, which is responsible for activating most of the body's organs; and the parasympathetic nervous system, which is responsible for relaxing the activity of most organs, except those related to digestion.
The autonomic nervous system is responsible for regulating the involuntary visceral functions of the organism. Also, it's responsible for the maintenance of body homeostasis and the body's adaptation responses to variations in the external and internal environment. Thus, it helps to control, among other functions, blood pressure, heart rate, urinary emission, sweating, body temperature, among others. Most of the functions of the system are unconsciously regulated by means of visceral reflexes.
Spica casts or body casts are used to treat children who have hip, pelvis, or leg problems, such as developmental dysplasia of the hips. When elevating the head of an infant in a spica cast the nurse should use pillows to elevate the head and shoulders of the infant. Spica cast is not a surgical procedure but normally used after a surgical procedure for hip dysplasia.
Answer:
The tropical rainforest biome has four main characteristics: very high annual rainfall, high average temperatures, nutrient-poor soil, and high levels of biodiversity (species richness). Rainfall: The word “rainforest” implies that these are the some of the world's wettest ecosystems.
Plants found in cold environments have a higher amount of photosynthesis at low temperatures. Plants in warm environments, have a higher photosynthesis in high temperatures.
Photosynthesis is the process by which plants make their food from sunlight . This process is mostly dependent on sunlight so it varies from temperature and seasons. Greater light intensity leads to higher photosynthesis rates, as does increased carbon dioxide concentration.
Photosynthesis is generally higher during early summer and decline by autumn season . Temperature also plays an important role in photosynthesis as temperature increases the number of collisions increases, therefore the rate of photosynthesis also increases.
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