Answer:
Humans first evolved in Africa, and much of human evolution occurred on that continent. The fossils of early humans who lived between 6 and 2 million years ago come entirely from Africa. Most scientists currently recognize some 15 to 20 different species of early humans.The first true primates evolved by 55 million years ago or a bit earlier, near the beginning of the Eocene Epoch. Their fossils have been found in North America, Europe, and Asia. They looked different from the primates today.
hope this is what you were looking for!
<span>Homans' sign is an assessment test used to determine whether the patient has VTE. Presence of Homans' sign indicates that the patient may have VTE. Uterine atony can be assessed by palpating the uterine fundus. Hypotensive shock can be assessed by checking the patient's vitals. Mastitis can be assessed by the examining the patient's breasts.</span>
The solution of sodium acetate trihydrate energy released is 19.7 kJ/mole which is an endothermic process. The crystallization is exothermic.
<h3>
What is crystallization?</h3>
Crystallization can be defined as the solidification of a liquid substance into a highly structured solid whose molecules are placed in a well-defined three dimensional crystal lattice.
A. Before weight: 280gm and after heating of pad, weight increases by 10-20gm approx (300gm).
B. It takes 12-20 minutes for the solution to completely crystallize after the bag is activated.
For more information regarding crystallization, visit:
brainly.com/question/4155452
#SPJ1
The answer is a C3 fixation.
Plants are located in different regions with a different condition, so they had to adapt the carbon fixation. There are three types of carbon fixation in plants - C3, C4, and CAM fixation. C3 and C4 plants open their stomata during the day while CAM plants open stomata during the night.
Plants in arid locations use CAM carbon fixation because of adaptation to water deficiency. In CAM plants, stomata are closed during the day and water loss is reduced. In the night when is colder, stomata open and carbon dioxide enters through stomata. In C4 carbon fixation, there is also adaptation to high temperatures thanks to enzymes that increase the rates of photorespiration, unlike the C3 fixation.