Answer:
D. Population genetics
Population genetics is the study of genetic variation within populations, and involves the examination and modelling of changes in the frequencies of genes and alleles in populations over space and time. ... In natural populations, however, the genetic composition of a population's gene pool may change over time.
Explanation:
microevolution - evolutionary change within a species or small group of organisms, especially over a short period. (Not studying the overall evolution in the population, just a single allele usually) Not it then
macroevolution - Macroevolution in the modern sense is evolution that is guided by selection among interspecific variation, as opposed to selection among intraspecific variation in microevolution (this goes over huge groups of different species) Not it then
gene pool - The gene pool is the set of all genes, or genetic information, in any population, usually of a particular species. (Not the study of evolution in a population) Not that then
So it has to be D
The continents that are now separated by the Atlantic Ocean once formed a single landmass.
All of our current continents were once connected as one single landmass named Pangea. Pangea broke apart into different continents. Fossils found in Africa have been found in South America, and etc.
The ones about enzymes are chemical digestion and the ones about chewing are mechanical digestion.
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The mouth is the beginning of the digestive tract. In fact,digestion starts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use.
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Answer:
Interstitial flood bath and surround the cells; present outside the cell
Explanation:
Intracellular fluid: The solutions which are present inside the cell
Extracellular fluids: The solutions that are present outside the cell
Extracellular fluid consists of plasma, interstitial, and transcellular fluid
Interstitial fluid; The fluid that is present in cells spaces and capillaries. It contains the nutreints that are secreted by capillaries through osmosis and metabolic waste of cells.
