题干

有些养殖者认为雄性中华鳖的市场价值高,生长速度快,希望养殖雄性中华鳖,而有些养殖者则认为雄鳖好咬斗,咬斗的伤口是病原体入侵的主要途径,希望 开展全雌养殖.有学者做过研究,认为爬行类的有些种类的性别决定与孵化温度密切相关.福娃家是中华鳖的养殖大户,为了探究中华鳖的性别决定是否与孵化温度 相关.福娃做了如下实验:


上一题 下一题 0.0难度 选择题 更新时间:2019-09-20 06:29:47

答案(点此获取答案解析)

同类题3

任务型阅读

    Most of us mistakenly think that creativity is a quality belonging only to inventors rather to ourselves.____The following tips are a great beginning for developing our creativity.

    ⒈Get out of your comfort zone

    Break out of your usual patterns and welcome creativity into your life. The human brain was designed to recognize patterns. We continue to create patterns and routines for almost everything we do.____As we become more efficient at using patterns, we rely less on creativity to find new paths. We should force ourselves out of our comfort zones and open up new possibilities.

⒉____

    If you always do what you've always done, you'll always get what you've always got. We are creatures of habits and routines, but creativity hates routines. Interrupt your routine and try something new. Undoubtedly, new things are often creative.

⒊Take action

    ____ You must work to make it a reality. Have you ever seen a new product and realized that you thought of the same thing long ago? Yet someone else is making money with “your” idea.____ The difference between a dreamer and a doer is action. If you can put your ideas into practice, you are well on your way to improving your creativity. You can become a true inventor in your own life somehow!

A. Having a great idea is not enough.

B. Seek several options.

C We may attempt to think from the other person's point.

D. Try different things.

E. However, the truth is that we are all born with the potential to be creative.

F. In fact, our comfort zone is only a collection of patterns.

G. We all have great ideas sometimes, but only a few people turn their ideas into reality.