Answer: Water, vacuum and air molecule i guess
Explanation: XXXXXXXXXXX
Answer:
Ventilation is the movement of a volume of gas into and out of the lungs. Respiration is the exchange of oxygen and carbon dioxide across a membrane either in the lungs or at the cellular level.
Explanation:
Answer:
C. Shared characteristics
Explanation:
Generally, living organisms are classified into groups based on their characteristics. Organisms that possess same or similar characteristics are grouped together while those that possess different characteristics are grouped separately.
Classification of living organisms include seven (7) levels of organization namely: kingdom, phylum, classes, order, families, genus, and species. Kingdom represent the MOST INCLUSIVE while species represent the MOST EXCLUSIVE i.e. contains the fewest members considering the fact that organisms with the most shared characteristics are grouped as species.
Answer:
B. Sulfur
Explanation:
Acid rain is <u>the result of sulfur dioxide emissions combined with nitroxen oxides.</u> This occurs when both compounds interact with water and oxygen (and other molecules) that are already present in the atmosphere.
This phenomenon is extremely dangerous for both humans, fauna, and flora, especially when it comes to aquatic organisms. <u>Some freshwater fish species, for instance, are not able to grow or develop due to the increased pH. In other cases, when the pH is even lower, organisms are not able to cope and eventually die.</u>
Therefore, a reduction in atmospheric concentrations of sulfure could reduce acid rain and return rain to its normal pH.
Answer:
The given statement is true.
Explanation:
An error at the time of the replication of DNA or mutation can either result in the addition or deletion of DNA bases that eventually makes a substantial change in the sequence of DNA, and thus, will exhibit a substantial influence on the recognition sequence because of which one can witness a change in the site of recognition.
This variation witnessed in the DNA's recognition site can be evaluated by treating the mutated DNA with the restriction enzymes that exhibit a uniqueness for the restriction sites. Afterward, by going through the process of gel electrophoresis one can witness the change in the number of bands of DNA showing variation in the restriction sites.
