Energy is defined as

A. change.
B. the capacity to do work.
C. heat.
D. movement.


Answer: B

Biology & Microbiology

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In the construction of a phylogenetic tree, a ______ considers the overall similarities among a group of species without trying to understand their evolutionary history, whereas a ______ considers the possible pathways of evolution to find the best possible tree.

A. cladistic approach; phenetic approach B. phenetic approach; cladistic approach C. shared derived character; ancestral character D. ancestral character; shared derived character

Biology & Microbiology

____ is (are) the transport medium for blood

cells and platelets.

a. Pure water b. Plasma c. Lymph fluid d. Plasma and lymph fluid e. None of these

Biology & Microbiology

Organs are groups of specialized cells that are similar in structure and perform common functions.

a. true b. false

Biology & Microbiology

In transcriptional control in eukaryotic cells

A. enhancers may be involved in the promotion as well as regulation of gene transcription. B. a different combination of DNA-binding proteins (transcriptional factors) may regulate the activity of a particular gene. C. the control may be due to the phosphorylation of transcriptional factors by a kinase. D. All of the choices are correct. E. Only two of the choices are correct.

Biology & Microbiology