<span>There are differences in the structures of bird and insect wings because b</span>irds are vertebrates and, therefore, have internal structural members. Insects are invertebrate and have external structural members.
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The answer is C. Summer solstice. The sun is at its northernmost when it passes the first solstice after the vernal equinox on June 21 or 22, which is in the summer time.
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Answer:
Oxygen is formed from carbon dioxide in <u><em>photosynthesis</em></u>, while carbon dioxide is formed from oxygen in<u> </u><u><em>respiration. </em></u>
Explanation:
Photosynthesis can be described as the process by which plants make glucose and oxygen from carbon dioxide and water in the presence of sunlight. By this method, plants are bale to make their own food. Cellular respiration can be described as a process by which plants convert oxygen and glucose into water and carbon dioxide along with the release of ATP. The process of photosynthesis and cellular respiration are opposite of one another and are equally essential.
This question is unfortunately incomplete. However, the general skull features of <em>H</em><span><em>omo heidelbergensis </em></span>include large brow ridges, a broad, sloping forehead and a rear skull wall that is vertical rather than rounded or sloping.