First female Director of UK spy agency talks to students Newsround 04:03 Why are they called lollipop people Newsround #roadsafety 01:51 Government says sorry for Youth Parliament problems Newsround 04:03 How do you vote in a general election Newsround 02:11 What's the buzz about bees...
A. Bees were busy making honey. B. Bees could relax themselves by playing with balls. C. Bees were interested in playing with different things. D. Female bees liked sugars more than male bees.2. The underlined word "initially" probably means“” A.频繁地 B.广泛地 C.最初地 D.主动地3...
Furthermore, our results strongly suggest that female convict cichlids do not use male body size as an absolute criterion, but, instead, as a relative one. Overall, females showed a consistent directional preference for males larger than themselves, but did not systematically prefer the largest mal...
Queens are normally the sole reproductive female within a honey bee colony and the reproductive status of a queen directly influences the colony’s overall health; however, queen quality can be compromised by environmental stressors1,2. A queen can lay up to two thousand eggs/day in the ...
There are three kinds of bees in each colony(群落): the queen bee, the worker bees, and the drones. The queen bee is larger than the other bees, and she lays all the eggs for the colony. The worker bees are female bees, but they do not lay eggs. The drones are male bees,and ...
5 bees rolled (滚动) more balls than old bees. Adult male (雄的) bees 6 more time playing with the balls than female (雌的) bees did.There 7 45 bees in the tests. They had two choices. The first one was to fly or walk directly (直接地) to eat sweet food. The second one was...
Interestingly, when Henking used a light microscope to study egg formation in female grasshoppers, he was unable to spot the X element. Based on his observations, Henking hypothesized that this extra chromosome, the X element, must play some role in determining the sex of insects. However, ...
In a family, there is a queen(皇后)bee, some drones(雄蜂)and a lot of worker bees. Different bees have different kinds of work. The queen bee and the worker bees are female, but only the queen bee can have baby bees. The queen bee and the drones are not bu...
Female bees encountered the holes as they searched for natural holes for nesting. Systematic monitoring of the units over five years, 1987 to 1991, provided a quantitative measure of habitat preference and changes in bee frequency through time. There were sufficient data for statistical analysis of...
beesandhoneybeesaretwokindsofbeesthatliveincolonies.A colonyofbeesis a groupofbeesthatlivetogetherwithonequeenbee.Thequeenbeelayseggs.TheFeaturesof a BeeBeesarewellknownfortheirsting(蛰) butitisonlyfemalebeesthathave a stinger.Malebeescannotsting.Honeybeesandbumblebeesusetheirstingerstoprotectthemselvesand...