题目内容
（请给出正确答案）
A.Chromosome set
B.Diploid
C.Haploid
D.polyploid
参考答案
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
网友提供的答案
更多“The minimum set of basic chromosomes needed to maintain biological activity is called”相关的问题
To understand how this transformation has taken place we must briefly look back at our forefathers. They spent over a million years evolving (进化) as cooperative hunters. Their very survival depended on success in the hunting-field. Under this pressure their whole way of life, even their bodies, became greatly changed. They became chasers, runners, jumpers, aimers, throwers and prey-killers. They cooperated as skillful male-group attackers.
Then about ten thousand years ago, after this immensely long period of hunting their food, they became farmers. Their improved intelligence, so vital to their old hunting life, was put to a new use--that of controlling and domesticating their prey. The hunt became suddenly out of date. The food was there on the farms, awaiting their needs. The risks and uncertainties of the hunt were no longer essential for survival.
The skills and thirst for hunting remained, however, and demanded new outlets. Hunting for sport replaced hunting for necessity. This new activity involved all the original hunting sequences but the aim of the operation was no longer to avoid starvation. Instead the sportsmen set off to test their skill against prey that were no longer essential to their survival. To be sure, the kill may have been eaten but there were other much simpler ways of obtaining a meaty meal.
The author believes that sporting activities ______.
A．are forms of biological development
B．have actually developed from hunting
C．are essentially forms of taming the prey .
D．have changed the ways of hunting
A、Triploid
B、Allotetraploid
C、Autotetraploid
D、Diploid
A、Mendelian inheretance
B、extra-chromosomal inheritance
C、cytoplasmic inheritance
D、maternal inheritance
警告：系统检测到您的账号存在安全风险
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
