parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg. if they lay too many eggs in a host egg, the developing wasp larvae would compete with each other to the death for nutrients and space. if too few eggs were laid, portions of the host egg would decay, killing the wasp larvae.
which of the following conclusions can be properly drawn from the information above?
A. the size of the smallest host egg that a wasp could theoretically parasitize can be determined from the wasp's egg-laying behavior
B. host insects lack any effective defenses against the form of predation practiced by parasitic wasps
C. parasitic wasps learn from experience how many eggs to lay into the eggs of different host species
D. failure to lay enough eggs would lead to the death of the developing wasp larvae more quickly than would laying too many
E. parasitic wasps use visual clues to calculate the size of a host egg
答案是A。我想了半天，实在是想不明白为什么会是A。。。。
我说说我的理解…这道也是GWD题
文章表示这个wasps会lay their eggs in exactly the right numbers
若它们lay too many eggs 则the developing wasp larvae would compete with each other to the death for nutrients and space.
若它们lay too few eggs 则portions of the host egg would decay, killing the wasp larvae.
题目要我们根据上述信息可得出什么结论???
而ANS ->A正确因为从上面我们可以从wasp's egg-laying behavior 来推断the size of the smallest host egg
a的意思是从waps生蛋的个数上可以理论上知道寄主的蛋的大小。最小的情况就是它只生一个蛋进去，最大的情况，它可以生无数个蛋进去。
这题的关键是理解它生的蛋正好把整个寄主的蛋填满这个事实。其他的就好理解了。
我以前看这到题也想了好久。好好理解一下题意吧，别着急。
事实上a我不太明白的是，他说。。宿主最小号的蛋可以决定寄生的wasp的下蛋行为。。。
为什么是the size of the smallest host egg?????
楼主我觉得重点在我们可以从wasp's egg-laying behavior 来推断the size of the smallest host egg
你也可以改为the size of the largest host egg…
看题理解个大概就可…….…^^
Yeah…you got it…
这选项也太唬人了吧。。。无奈。。。。
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