Biology, 12.10.2019 02:00 ayoismeisalex
The electrons in surface atoms of a star require the input of energy in order to move from the ground state. this energy is generated on the surface of the star in the core of the star from other stars nearby from planets orbiting the star
Answers: 3
Biology, 22.06.2019 07:00
Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms
Answers: 2
Biology, 22.06.2019 09:30
Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from
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Biology, 22.06.2019 09:50
Which statement describes compounds a. compounds are made of one type of atom. b. compounds cannot be represented by models. c. compounds are represented by chemical formulas. d. compounds cannot be broken down into simpler forms.
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
The electrons in surface atoms of a star require the input of energy in order to move from the groun...
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