Study the following diagrams of differences between the dentition of herbivores, carnivores, and omnivores.
Diagram A
Diagram B
Diagram C
1.1
Which diagram (A, B or C) is representative of a carnivorous
organism?
(1)
EE
1.2
Provide a reason for your answer in QUESTION 1.1.
(1)
1.3
Identify the kind of digestion that takes place in the mouth.
(1)
1.4
Tabulate the difference between skulls A and B with respect to the
shape of the teeth and types of food consumed.
(5)
1.5
Identify the skull of a human from the above diagrams.
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Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.

What factors contribute to the effect an environmental toxin has on the human body?

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?