Answer:
Think about the crimes described in the video and about how crimes are investigated now. If the crimes happened today, the investigation will be based on fingerprint with evidence sample. Earlier also they used samples and scents to detect the crime.
Explanation:
If the crimes happened today suspects would be fingerprinted and would heck the crime scene for evidence such as blood, hair any type of DNA . Back then there wasn't a way of testing DNA and evidence they just investigated friends , family members and lovers . Back then they used blood hounds to sniff out scents of people who were suspects. Back then they also assaulted suspects until they would confess what they had seen or known .
Answer: C
Explanation: The process that occurred in the lake is natural selection. In the presence of an external environmental influence such as pollution, only the trouts that were fit to survive or in other words those that have the alleles that help in adapting to the new conditions live and increased in numbers. In such a case, one can say the fittest of the organisms survived and the corresponding allelic frequency in that population increased over time. The organisms carrying the other alleles died due to pollution and hence the overall frequency of alleles change.
Answer: population increases by 15
Explanation:
The population growth will be calculated by adding the Natural Increase in population plus the Net In-Migration. This will be:
Natural increase = Birth - Death rate
= 35 - 7
= 28
Net-In-Migration = Immigration - Emigration
= 4 - 17
= -13
Therefore, population growth will be:
= 28 - 13
= 15
Therefore, population increases by 15
Answer:
Mouth: site where mechanical digestion takes place
Stomach: A mixture of chemical etc...
Esophagus: At this site, muscles are contracted to falicilitate peristalsis
