問題詳情
21. When a cell releases a signal molecule into the environment and a number of cells in the immediate vicinity respond, thistype of signaling is
(A) typical of hormones.
(B) autocrine signaling.
(C) paracrine signaling.
(D) endocrine signaling.
(E) synaptic signaling.
(A) typical of hormones.
(B) autocrine signaling.
(C) paracrine signaling.
(D) endocrine signaling.
(E) synaptic signaling.
參考答案
答案：C
難度：簡單0.7
統計：A(2),B(2),C(14),D(0),E(0)
內容推薦
- Cephalization is primarily associated with(A) adaptation to dark environments. (B) method of rep
- Which one is the correct description of salt and water balance in animal?(A) Sodium and potassiu
- In the cells of the nervous system, which one is the correct description?(A) Ionotropic receptor
- In systematics and phylogeny, which one is the correct description?(A) A phylogenetic tree is ac
- In biodiversity, which one is the correct description of ecosystem diversity?(A) The amount of g
- The higher the proportion of loci that are "fixed" in a population, the lower is that
- Why are cattle able to survive on a diet consisting almost entirely of plant material?(A) They a
- Which of the following accurately gives the distribution of phenotypes produced from a cross of
- Which of the following structures is primarily involved in the detoxification of many poisons an
- Which of the following is an ongoing trend in the evolution of land plants?(A) decrease in the s
內容推薦
- In species interaction, which one is the correct description of allelopathy?(A) Amensalism(B) Th
- The distinction between sponges and other animal phyla is based mainly on the absence versus the
- Which structure is NOT part of the endomembrane system?(A) nuclear envelope (B) chloroplast (C)
- The main source of energy for producers in an ecosystem is(A) light energy. (B) kinetic energy.
- Which of these should decline in hybrid zones where reinforcement is occurring?(A) gene flow bet
- What would be the most effective method of reducing the incidence of blood flukes in a human pop
- The largest unit within which gene flow can readily occur is a(A) population. (B) species. (C) g
- Trace elements are those required by organisms in only minute quantities. Which of the following
- Which of these is NOT considered an amniote?(A) amphibians (B) nonbird reptiles (C) birds (D) eg
- Which statement represents the best explanation for the observation that the nuclear DNA of wolv
- Which of the following is true in plants?(A) Mitosis occurs in gametophytes to produce gametes.
- We tend to think of plants as immobile when, in fact, they can move in many ways. All of the fol
- In the cross Aa Bb CC Dd Ee × Aa Bb Cc Dd EE, in which all genes undergo independent assortment,
- In gymnosperms and angiosperms, which one is the correct description?(A) All gymnosperms are win
- Isolated populations will lose a percentage of their original diversity over time, approximately
- Ⅱ.【單選題】51-75 題，每題 2 分，共計 50 分。答錯 1 題倒扣 0.5 分，倒扣至本大題零分為止，未作答，不給分亦不扣分。Which of the following state
- The recessive allele that causes phenylketonuria (PKU) is harmful, except when an infant's
- Which of the following is NOT true about estuaries?(A) Estuaries are often bordered by mudflats
- In present populations of Taiwan Hwa-Mei (Leucodioptron taewanum) in Taiwan, genetic diversity h
- Bagworm moth caterpillars feed on evergreens and carry a silken case or bag around with them in
- The effect of 5-Azacytosine on gene expression is to(A) prevent chromatin remodeling. (B) preven
- The Morakot typhoon inflicted catastrophic damages on rivers and wiped out entire population of
- Hypothetical mutation in a squirrel population produces organisms with eight legs rather than fo
- 2夏休みの宿題は大方終わらせたので、安心できる。(A)おおかた (B)たいがい (C)たいほう (D)おおがた
- Influenza virus has pH-sensitive, acidic fusogenic proteins. Based on this, influenza virus woul