題庫堂
檢索
題庫堂
首頁
數學
英文學習
政治學
統計學
經濟學
藥理學
中醫藥物學
財政學
法學知識
公共行政
警察學
BI規劃師
財務管理
公共衛生學
工程經濟學
電力電子學
當前位置:
首頁
59. 以下針對食物網的說明,那些是正確的? (A) 掠食壓力最低的群聚,獵物的物種數一般最高 (B) 食物網內的物種多樣性增加,該食物網生態系功能的穩定性也會增加 (C) 食物網內的物種多樣性增加,
問題詳情
59. 以下針對食物網的說明,那些是正確的?
(A) 掠食壓力最低的群聚,獵物的物種數一般最高
(B) 食物網內的物種多樣性增加,該食物網生態系功能的穩定性也會增加
(C) 食物網內的物種多樣性增加,該食物網內各物種族群豐度的穩定性也會增加
(D) 珊瑚蟲是珊瑚礁的關鍵種(keystone species)
(E) 食物鏈的長度最高可達 12 個營養階層
參考答案
答案:B
難度:
計算中
-1
書單:
沒有書單,新增
上一篇 :
複選題58. 有關生態系中氮元素和氮循環的敘述,下列何者正確? (A) 氮是生物體中醣類、核酸和蛋白質的重要組成元素,是生物存活不可或缺的物質 (B) 真核生物無法直接利用空氣中的氮,通常須透過原核生
下一篇 :
複選題60. 以下針對生態系能量流動的說明,那些是正確的? (A) 陸域生態系的總初級生產力一般在接近赤道的熱帶地區最高 (B) 海域生態系的總初級生產力一般在接近赤道的熱帶地區最高 (C) 陸域溫血
資訊推薦
複選題15. David Julius是2021年諾貝爾生物醫學獎獲獎人之一,他因為發現感覺神經末梢的溫度接受器而榮獲桂冠,附圖是David Julius對感覺神經末梢溫度接受器 (XR) 的部分研究
5. To visualize a protein band,______ is commonly used to stain proteins after SDS-polyacrylamide ge
6.A DNA segment of 1,000 base pairs in the B form. What is its approximate molecular weight? (A) 33(
7. Absorbance at ________ n m is frequently used to determine the concentration of protein. (A) 200
8.Which of the following compounds has the highest molecular weight? (A) adenine (B) adenosine(C)ade
9.Which of the following descriptions regarding disaccharide is incorrect? (A) Sucrose is α-D-glucop
10.Which of the following restriction endonucleases is an isoschizomer of BgIII (AGATCT)?(A) EcoRI(G
11.Which scientist made a significant contribution to the discovery of prion? (A) K. B. Mullis (B) J
12.TWEEN 20 is a nonionic surfactant that denatures proteins by disruping ________? (A) hydrogen bo
13. How many stereoisomers for an aldopentose? (A) 2 (B) 4 (C) 6(D) 8 (E) 16
14.The chemical bond between ribose and base of a nucleotide is a(n) _______. (A) Ether (B) Ester (C
15.Which of the following lipids are especially common in the membranes of brain and nerve cells? (A
16. TyC loops are found in (A) mRNA (B) rRNA (C) tRNA (D) hnRNA (E) snRNA.
17. The catalytic triad of serine proteases consists of _______, _______, and _______ ? (A) Ser, Hi
18.Which scientist proposed the model of chemiosmotic coupling? (A) P. Mitchell (B) J. D. Watson and
19. Which of the following amino acids contains only one codon? (A) Ala (B) Lys (C) Tyr (D) Met (E)
20. B form DNA has a pitch of ________ n m per turn. (A) 0.34 (B) 0.54 (C) 3.4 (D) 5.4 (E) 10
21.The Northern blotting method is normally used for detection of (A) proteins (B) DNA (C) RNA (D) l
22. Which of the following tautomeric forms is the major form of fructose in solution? (A) a-pyranos
23.Which codon is most commonly used as the initiation codon in E. coli? (A) AAA (B) TTT (C) CCC(D)
24.Which of the following compounds is frequently used by emergency medical personnel as an antidote
25.Which pair of enzymes listed below generates NADPH? (A) glucose-6-phosphate dehydrogenase and 6-
26.How many CO2 molecules are released for each acetyl-CoA entering the glyoxylate cycle in plant ce
27.The most important regulatory step in glycolysis is catalyzed by _______. (A) hexokinase (B) pyru
28.Which of the following reactions is not located in mitochondria? (A) tricarboxylic acid cycle(B)