Biology, 14.07.2019 13:30 ayoismeisalex
Which observation describes a way that early hunter-gatherer societies may have affected their environment? a. invasive species outcompeted native species in ecosystems b. fossil-fuel use polluted air, water, and land resources c. large species of herbivores died out because of overhunting d. people drained the land of water in order to grow plants
Answers: 1
Biology, 22.06.2019 12:00
Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.
Answers: 1
Biology, 22.06.2019 12:10
What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time?
Answers: 1
Biology, 22.06.2019 12:30
What is the most important inorganic material for livings things? ! due tomorrow!
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
Which observation describes a way that early hunter-gatherer societies may have affected their envir...
Chemistry, 05.03.2021 21:00
Mathematics, 05.03.2021 21:00
Computers and Technology, 05.03.2021 21:00
Mathematics, 05.03.2021 21:00
Mathematics, 05.03.2021 21:00
Social Studies, 05.03.2021 21:00
Biology, 05.03.2021 21:00
Mathematics, 05.03.2021 21:00
Mathematics, 05.03.2021 21:00