Answer:
The correct answer will be option- Australopithecus.
Explanation:
<em>Australopithecus</em> is an extinct genus of a large group of animals called primates. This genus is closely related to humans which may or may not be ancestors of <em>Homo sapiens</em>.
Australopithecus exhibits traits of both ape and human-like which is distinguished by the small size of the brain, smaller canine teeth but large molar and premolar teeth, broad dish-shaped face, sagittal crest, large molar teeth, flared zygomatic arches and sloping forehead.
Thus, option- Australopithecus is the correct answer.
Genetic drift is defined as a shift in the allelic frequency of a population. This can be caused by natural selection which is the differential survival and reproduction of individuals across a population due to differences in phenotype. Natural selection favors particular traits in a population hence these individuals are able to reproduce while the individuals with disadvantageous traits will pass their genes to succeeding generations. This way the allelic frequency of succeeding generation will be diferent from that of the parent population.
Answer:
Cells produce energy by breaking down sugar and other molecules in the presence of oxygen to produce ATP. So the answer is "B".
Explanation:
The process of producing ATP in animal cells occurs through cellular respiration. Various processes occur in this which involve the presence or absence of oxygen. Glycolysis in the presence of oxygen leads to the production of two molecules of ATP. Glucose is broken down into pyruvate and water.
In citric acid cycle, acetyl coA is utilized to produce <u>2ATP, 6NADH and 2FADH molecules.</u>
Finally oxidative phosphorylation occurs in mitochondria. With the help of electron transport chain, ATP is synthesized by ATP synthase enzyme.
Answer:
The correct answer is D. is a facultative anaerobe
Explanation:
A facultative anaerobe is the organisms that can live in the absence of oxygen but prefer to utilize the oxygen when oxygen is present in the environment.
An anaerobic organism requires more amount of energy sources like carbohydrates because they use the fermentation process to make energy and this process results in the formation of less energy than aerobic respiration.
All the bacteria of family Enterobacteriaceae that live in the intestine are facultative anaerobes. Therefore facultative anaerobe can thrive in both the presence and absence of oxygen so the correct answer is D. is a facultative anaerobe.
