<span>Three anatomical features that birds share with their theropod ancestors are:
</span><span>1. they had light, hollow bones
</span>2. they rearranged hip and leg muscles because this of <span>improved bipedal movement
</span>3. they had their flight oriented with the use of wings for balance
Natural selection is the answer. Natural selection is a process which organisms adapt more in their surroundings to survive longer. Therefore, when certain traits increase the likelihood of an animal living a long life, it is referred to as natural selection.
Answer:
Sunlight provides
The leaves take in
Animals eat the plants
other animals eat the plant eaters
Explanation:
The color of the cat
The color has nothing to do with how much the cat eats
Question options:
1. Homeostasis
2. Digestion
3. Embryology
4. Cellular respiration
Answer:
<u>1. Homeostasis</u>
Explanation:
Sugar level in humans is regulated by "Insulin" and "glucagon" hormones that are secreted by the pancreas. Both hormones work in a balanced way to regulate the blood sugar level within a specific range if the sugar levels spike or drop.
Together,<u> </u><em><u>insulin and glucagon help maintain a state known as homeostasis</u></em><em>.</em> By definition, homeostasis is the maintenance of the internal environment of cell/body with respect to the external environment. Thus, homeostasis maintains a relatively stable state that persists despite changes in the world outside.<u> When blood sugar is too high, the pancreas secretes more insulin which acts to trigger breakdown of sugar thus reducing its level. By contrast, when blood sugar levels drop, the pancreas releases glucagon to allow conversion of macromolecules to simple sugars and raise its level.</u>
