The seasons are caused as the Earth, tilted on its axis, travels in a loop around the Sun each year. Summer happens in the hemisphere tilted towards the Sun, and winter happens in the hemisphere tilted away from the Sun. As the Earth travels around the Sun, the hemisphere that is tilted towards or away from the Sun changes.
Answer:
Phospholipids form the basic structure of a cell membrane, called the lipid bilayer. Scattered in the lipid bilayer are cholesterol molecules, which help to keep the membrane fluid consistent. Membrane proteins are important for transporting substances across the cell membrane
Answer: True.
Spleen framework is created by reticular fibres from reticular cells.
Explanation:
Spleen is an organ found mostly in vertebrates. It develop from mesenchymal cells within the dorsal of mesogastrium near the greater curvature stomach. The mesencymal cells then divide and differentied to form framework of connective tissues of spleen. The framework of spleen is created by reticular fibres of the reticular cells. Reticular fibres are fibres in the connective tissue that is composed of type iii collagen secreted by reticular cells. Spleen function in filtering of blood. It plays a major role in red blood cells and immune system.
Answer:
Computational phylogenetics comparing eukaryotes revealed that fungi are more closely related to us than to plants. Fungi and animals form a clade called opisthokonta, which is named after a single, posterior flagellum present in their last common ancestor.
Explanation:
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The ability of a person's cardiovascular system to compensate for blood loss is most related to how rapidly he or she bleeds.
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what is cardiovascular system made up of?</h3>
Your cardiovascular system, which consists of your heart and blood arteries, is an essential component of your body. When your cardiovascular system is functioning properly, your cells receive a constant supply of oxygen and nutrients from your blood. Carbon dioxide and other waste are also removed via blood vessels. You have the ability to maintain your heart and blood vessels healthy. Eating healthy foods, exercising, keeping your blood pressure and cholesterol under control, and quitting smoking are all beneficial to your cardiovascular system. Request assistance from your provider in achieving heart health.
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