A. prove the hypothesis B. compare with the experimental group C. make the experiment more complex D. increase the number of samples 相关知识点: 试题来源: 解析 B。此题为海洋科学实验中控制组的作用。选项 A 证明假设不是控制组的主要作用;选项 C 使实验更复杂不是控制组的目的;选项 D 增加样本...
Group sizes: MDM (n = 18 cells, 6 rats), MDL (n = 19 cells, 7 rats), VMS (n = 21 cells, 6 rats), DMS (n = 23 cells, 7 rats). Full size image Next, we compared passive and active electrophysiological properties of the same postsynaptic neurons in the MD ...
Furthermore, the decline in interest typically found in this age-group was lower in the lab group for several interest components. However, as a follow-up questionnaire four months after the visitation shows, differences between the groups were not ongoing.Alexander Brandt...
The striped flea beetle (SFB, Phyllotreta striolata) can cause serious harm to cruciferous crops in both the larval and adult stages. Presently, there are no other sustainable alternatives to the use of chemical pesticides for controlling SFB infestation. In this study, the use of a seed-pelleti...
(A and B) Frequency of seeds (A) and percentages of second-pollen-tube insertions (B) observed in wild-type pistil pollinated by the kpl/kpl plant. (C) Diagram of the dual pollination experiment. (D–G) Analyses of seed development and an inserted pollen tube 3 days after dual pollinat...
Bai's group has conducted several studies on PPGs propagation through porous media and fractures(AbdulmohsinImqam et al., 2017; Okumura and Ito, 2010). It is demonstrated that PPGs are effective in a wide range of permeability. Factors such as the strength and particle size control the ...
In this article, you will learn about the details of the original and replicated marshmallow test experiment and related research about the importance of self-control. Short Summary The marshmallow test is a psychological science experiment that measures children's ability to self-control and delay ...
The transportation of essential items, such as food and vaccines, often requires adaptive multi-temperature control to maintain high safety and efficiency. While existing methods utilizing phase change materials have shown promise, challenges related to
Bacteria-based tumor therapy has recently attracted wide attentions due to its unique capability in targeting tumors and preferentially colonizing the core area of the tumor. Various therapeutic genes are also harbored into these engineering bacteria to
The control group and experimental group are compared against each other in an experiment. The only difference between the two groups is that the independent variable is changed in the experimental group. The independent variable is "controlled", or held constant, in the control group. A single ...