29. Which of the following characteristics, structures, or processes is common to both bacteria and viruses?
(A) Metabolism
(B) Ribosomes
(C) Genetic material composed of nucleic acid
(D) Cell division

25. Which of the following is an example of commensalism (A)Lynx(山貓)andhare(兔) (B) Clown fish lives In anemones (C) Scavengers fight over carcasses(動物屍體) (D) Orchids live attached to a tree trunk

26. In a natural community, the primary consumers are(A) Herbivores(B) Carnivores(C) Detritivores(D) Decomposers

27. Which of the following is NOT the major evolution trend in terrestrial plants (A) Production of microsp pores and megaspores for fertilization (B) Development of vascular tissue (C) Adaptation n to dry environm mental conditions (D) Increasing dominance of the gametophyte phase

28. Which of the following Is an example of post-transcriptional control of gene expression? (A) The addition of methyI groups to cytosine bases of DNA (B) The binding of transcription factors to a pror omoter (C) The removal of introns and alternative splicing of exons (D) Gene amplification contributing to cancer 

30. Which of the following tools of DNA technology is Incorrectly paired with its use? (A) Electrophoresis-separation of DNA fragments(B) DNA ligase-cutting DNA, creating sticky ends of restriction fragments(C) DNA polymerase-polymerase chain reaction to amplify sections of DNA(D) Reverse transcriptase -production of cDNA from mRNA

複選題31. Interaction of helper T cells with antigen presenting cells activates helper T cells through (A) Endocrine signaling(B) Paracrine signaling(C) Autocrine signaling(D) Synaptic signaling(E) Neuroendocrine signaling

複選題32. Which of the following cell types are connective tissues?(A)Fibroblasts(B) Dendritic cells(C) Plasma cells(D) Mast cells(E) Macrophages

複選題33. Which of the following solutes contribute to the osmolarity of the interstitlal fluid in the kidney? (A) (B) KCI(C) Urea(D)(E) Nacl

複選題34. Which of the following statem ements about the difference between mitosis and meiosis are IRUE (A) Mitosis conserves the number of chromosome sets, producing cells that are genetically identical to the parent (B) Melosis is a special type of mitosis producing reproductive cells that occurs only in animal cells (C) Meiosis reduces the number of chromosomes sets from two (diploid) to one (haploid) (D) Synapsis and crossing over o r occur in both mitosis and (E) Meiosis produces cells that differ genetically from each other and from the parent cell

複選題35. Which of the following hormone es are secreted from posterior pituitary? (A)Adrenocorticotropic hormone (ACTH) (B)Anti-diuretic hormone (ADH) (C)Growth hormone (GH) (D)Oxytocin (E) Thyroid stimulating hormone (TSH)