Comparatively greater energy is released when
A. carbon dioxide is the final electron acceptor.
B. hydrogen is the final electron acceptor.
C. nitrate is the final electron acceptor.
D. oxygen is the final electron acceptor.
D
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As oomycetes infected and killed potato plants during the Irish Potato Famine, oomycetes can be classified as a(n) _________________. Select all correct choices
A. virulent pathogen B. biotrophic pathogen C. avirulent pathogen D. necrotrophic pathogen
Genetic testing performed on cells of the placenta is called ____, while a similar procedure that uses cells derived from the amniotic fluid is called ____
a. placenta sampling; chorionic villus sampling b. trophoblast testing; amniocentesis c. trophoblast testing; chorionic villus sampling d. chorionic villus sampling; amniocentesis e. placenta sampling; amniocentesis
Based on molecular evidence, fungi were present on land at least
a. 1 billion years ago. b. 500 million years ago. c. 250 million years ago. d. 125 million years ago. e. 10 million years ago.
Culturing of intracellular parasites generally requires (enrichment/cell culture/low oxygen) conditions
What will be an ideal response?