Why do viruses need living hosts, such as bacteria or eukaryote cells? a) the host cell is the source of food for the virus. b) viruses depend on the host cells that they infect to reproduce. eliminate c) viruses lack cell structure and cannot survive without a host cell. d) viruses depend on a host cell because they lack their own dna or rna.
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Biology, 22.06.2019 00:00
Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?
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Biology, 22.06.2019 01:30
Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment
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Biology, 22.06.2019 08:10
Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material
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Why do viruses need living hosts, such as bacteria or eukaryote cells? a) the host cell is the sour...
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