Evolutionary biologists theorize that
the first living organisms on earth are single-celled prokaryotes. The two
prokaryotic domains are archaea and bacteria. Bacteria varies from
disease-causing pathogens to valuable photo synthesizers and symbionts while archaea
are diverse, but not pathogenic and they have the characteristics to live in
extreme environments. Moreover, the presence of prokaryotes is highly
dominating for they can be found everywhere even inside our bodies but they are
difficult to count, classify or detect.
The correct option is C.
Fermentation is the metabolic process which involves the break down of sugar in the absence of oxygen to produced gases, organic acids or alcohols. Fermentation can only occur in the absence of oxygen. Fermentation generates much less ATP than cellular respiration. There are two types of fermentation, alcoholic and lactic acid fermentation; lactic fermentation does not produce carbon dioxide. During the process of fermentation, NAD+ is always generated from NADH by the transfer of electron to pyruvate or a derivative, thus, fermentation makes NAD+ to keep glycolysis going.
Answer:
we can find such type of genetic disorders through pedigree chart.
Explanation:
cystic fibrosis is a Autosomal recessive disease
Muscular dystrophy is a Autosomal dominant disease.we can see them by observing the next generations going on .we can't find them in person's DNA fingerprint profile.
<span>These are explained by (D) punctuated equilibrium. This particular model of evolution is described as a large amount of evolutionary change that occurs in a very short 'punctuated' period of time. Unlike most evolutionary changes, which occur over thousands of years, this model describes evolutionary changes that occur suddenly after a certain event.</span>
Answer:
12. C. slight temperature range
13. B. little wind
Explanation:
Grassland biomes do not have a slight temperature range, they have a large one. It could be very hot in the day time but then quite cold at night.
Deserts do not have little winds blowing across them. These winds are usually strong and dry. The sand dunes in deserts were formed by these winds as they pick up sand particles and carry it to another area.