your best for this question is B)
hope this helps cutie:)
Answer:
''Watching television adversely impacted the quality of sleep''.
Explanation:
''Watching television adversely impacted the quality of sleep'' is the best hypothesis for her study. Watching television right before bed, can negatively impact your sleep quality. Late-night watching television disrupts your internal clock that adversely affected sleep quality of an individual. The above hypothesis is used by the Rachel to investigate the impact of watching television before sleeping on the sleep quality.
Elephants in the savanna regions of Africa dig holes in dried up river beds to reach water lying just below the surface. These holes provide drinking water for other animals as well. So, without the elephants, many animals might otherwise die from lack of water during the dry season. The location in which the elephants live is an example of a/n habitat and the role they play in creating water holes is an example of a niche.
Answer:
The approximate total population size, N = 188 Prairie Dogs
Explanation:
The equation of the mark-recapture technique of determining population density is given below:
Number of individuals marked in the first catch/Total population size, N = Number of marked recaptures in second catch/Total number of second catch
If 25 Prairie Dogs were captured, marked, and released back into their population, and then subsequently 135 Prairie Dogs were captured, of which 18 were marked
Number of dogs marked in first catch = 25
Number of marked recaptures in the second catch = 18
Total number of second catch = 135
Substituting the given figures and solving for N, the total population:
25/N = 18/135
18N = 25 × 135
18N = 3375
N = 3375/18
N = 187.5
Thus, the approximate total population size, N = 188 Prairie Dogs
Rodenticide because it has the word "rodent" meaning, a mammal of the order Rodentia, which mice and rats are included in. Therefore, the answer is rodenticide.
