Which of the following is not common to all vertebrates?
a. a forebrain
b. a hindbrain
c. a convoluted cerebrum
d. a dorsal tubular spinal cord
e. a midbrain
C
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Scientists that focus on small individual parts of a living system are using a(n) ____ approach
a. systemic
b. microbiological c. reductionist d. molecular e. bioinformatics
Water is always released as a product in hydrolysis reactions
__________________Indicate whether the statement is true or false.
Biological systems use free energy based on empirical data that all organisms require a constant energy input. The first law of thermodynamics states that energy can be neither created nor destroyed
For living organisms, which of the following statements is an important consequence of this first law? A) The energy content of an organism is constant except for when its cells are dividing. B) The organism must ultimately obtain all the necessary energy for life from its environment. C) The entropy of an organism decreases with time as the organism grows in complexity. D) Organisms are unable to transform energy from the different states in which it can exist.
Which early scientist proposed that cells arise only from pre-existing cells?
a. Theodor Schwann b. Robert Brown c. Matthias Schleiden d. Rudolf Virchow