A plant's contact with a solid object may result in a change of direction of growth, in a process called ________

a. thigmotropism
b. gravitropism
c. mechanical stress
d. phototropism


a

Biology & Microbiology

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Of the following, the majority of nutrient absorption takes place in the ______.

a) small intestine b) esophagus c) stomach d) pancreas e) colon

Biology & Microbiology

Why is the evolutionary origin of all eukaryotes no longer considered to be a simple evolution from a single Archaea species?

a. Archaea contain insufficient genetic material to explain eukaryotic evolution. b. Fossil records provide evidence that Archaea evolved after eukaryotes. c. Some eukaryotic genes share more similarity with Bacteria than Archaea. d. Some eukaryotes contain mitochondria, which are invariably fatal to Archaea.

Biology & Microbiology

The cuticle of leaves and stems is one modification that enabled plants to move onto land

Indicate whether the statement is true or false

Biology & Microbiology

Which type of molecule NEVER contains a phosphate group?

A) triglycerides B) phospholipid C) nucleic acid D) ATP

Biology & Microbiology