這題大概是說，虎甲蟲可以抓到任何沒有在飛的動物 但當虎甲蟲朝昆蟲(獵物)衝去，它不時會停頓一下，然後再繼續它的攻擊 對於這樣的間隔的停頓有兩種假設 1.有人認為虎甲蟲無法持續不停止的進行它的攻擊路線，需要行進間須停頓休息 2.虎甲蟲行進間無法及時的接收處理視覺，暫時會處於看不見的狀態，所以才會有停頓 a.已經離題，他說當虎甲蟲的獵物轉而朝虎甲蟲跑來，虎甲蟲會一反常態的不做停頓跑走 (個人覺得這選項超像笑話的 XD) bc可以一起做討論 b.他說在虎甲蟲進行攻擊的時候，會及時反應獵物上下左右移動、改變方向， 並且過程中虎甲蟲所作的停頓是規律的。 c.這個選像是說，儘管面前獵物從靜止到開始移動，虎甲蟲仍按照自己規律的步調停頓 但是它會為了去捕捉獵物而加速移動 因此C比B更加支持了假設1，虎甲蟲有它自己的停頓步調而作休息，而不是隨獵物而改變 另外虎甲蟲也會在停頓後加速去追捕獵物，證明剛剛在他眼前的獵物開始移動這件事情， 虎甲蟲是有看到的，因此假設二它無法及時處理眼前快速接收到的視覺這個理論就被 削弱了 d跟e就先不打了>"< PS 個人解讀>"< 有錯請大家不吝糾正一下喔!!!! ※ 引述《poco916 (可以溫柔卻有力量)》之銘言： : 24. (29155-!-item-!-188;#058&003857) : Tiger beetles are such fast runners that they can capture virtually any : nonflying insect. However, when running toward an insect, the beetles : intermittently stop, and then, a moment later, resume their attack. : Perhaps they cannot maintain their pace and must pause for a moment's rest; : but an alternative hypothesis is that while running tiger beetles are unable : to process the resulting rapidly changing visual information, and so quickly : go blind and stop. : Which of the following, if discovered in experiments using artificially : moved prey insects, would support one of the two hypotheses and undermine : the other? : (A) When a prey insect is moved directly toward a beetle that has been chasing : it, the beetle immediately turns and runs away without its usual : intermittent stopping. : (B) In pursuing a moving insect, the beetles usually respond immediately : to changes in the insect's direction, and pause equally frequently : whether the chase is up or down an incline. : (C) The beetles maintain a fixed time interval between pauses, although when : an insect that had been stationary begins to flee, the beetle increases : its speed after its next pause. : (D) If, when a beetle pauses, it has not gained on the insect it is pursuing, : the beetle generally ends its pursuit. : (E) When an obstacle is suddenly introduced just in front of running beetles, : the beetles sometimes stop immediately, but they never respond by running : around the barrier. : Ans:C : 這一題真的很瘋狂，不懂C如何支持其中一個假設，削弱另一個..... : 有沒有人知道呢？ --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 60.245.74.203 ※ 編輯: pinkdejavu 來自: 60.245.74.203 (10/16 18:48)