Which of the following does not characterize arthropods?

A. presence of a coelom
B. segmentation
C. an open circulatory system
D. an exoskeleton
E. an incomplete digestive tract


E

Biology & Microbiology

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If recombination results in random integration of a DNA sequence so that it produces a non-homologous region, the recombination is ________

Fill in the blank(s) with correct word

Biology & Microbiology

Which three organelles are involved in the glycolate pathway?

A) lysosome, chloroplast, rough endoplasmic reticulum B) mitochondrion, nucleus, lysosome C) peroxisome, smooth endoplasmic reticulum, chloroplast D) peroxisome, chloroplast, mitochondrion E) Golgi complex, peroxisome, lysosome

Biology & Microbiology

The most common mode of reproduction in bacteria is:

a. binary fission. b. transformation. c. transduction. d. conjugation. e. mitosis.

Biology & Microbiology

Which of the following statements about digestion is true?

A) Digestion occurs only in the stomach. B) Digestion can be both mechanical and chemical, and it occurs both in the mouth and in the stomach. C) Mechanical digestion occurs only in the stomach; chemical digestion occurs only in the mouth. D) Digestion is the same thing as ingestion.

Biology & Microbiology