In a cool environment, an ectotherm is more likely to survive an extended period of food deprivation than would an equally sized
endotherm because the ectotherm ________. a) maintains a higher basal metabolic rate b) expends more energy per kilogram of body mass than does the endotherm c) invests little energy in temperature regulation d) has greater insulation on its body surface
c) Invests little energy in temperature regulation
Explanation:
Ectothermic animals are the organisms which are dependent on the external sources of heat in order to regulate their internal body temperature. In these organisms the mechanism for the regulation of heat through internal physiological process is absent. Due to such feature they don't need to spend energy to maintain the body heat in cool environment and thus they can operate at a very economical metabolic rate. And thus they became enable to survive for longer even in the condition of food deprivation.
1. Ectotherm: Ectotherm are cold-blooded animall whose regulation of body temperature depends on external sources, such as sunlight and many other environmental factors.
2. They do not maintain their body temperature by self, so their body temperature changes externally.
3. They are also known as cold blooded animals.
3.They invests little energy in temperature regulation.
4. Example of ectotherms: include the fishes, amphibians, reptiles, and invertebrates.
Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere. Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy
Oxygen and carbon dioxide flow through the blood in the placenta. Most of it goes to the heart and flows through the baby's body. At birth, the baby's lungs are filled with fluid. ... Increased oxygen in the lungs causes a decrease in blood flow resistance to the lungs.
