Biology, 24.11.2020 20:40 petroale000
Please Help, Im taking aquiz and i have no idea how to answer this.
What two systems do mollusks have?
A. Digestive and respiratory systems
B. digestive and circulatory systems
C. respiratory and endocrine systems
Answers: 1
Biology, 22.06.2019 00:00
Question 1 of 102 pointswhich best describes adaptive radiation? oa. geographical isolation caused by an adaptationob. biodiversity resulting from few ancestorsoc. a decrease in the rate of speciationd. adaptations that organisms teach each other
Answers: 2
Biology, 22.06.2019 05:10
Any sound above what db can cause hearing loss in human beings
Answers: 1
Biology, 22.06.2019 13:00
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?
Answers: 1
Please Help, Im taking aquiz and i have no idea how to answer this.
What two systems do mollusks ha...
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