What is one example of a biological control agent? A. Aphids. B. Pesticides. C. Ladybugs. D. Chemicals. 相关知识点: 试题来源: 解析 C。原因:文章中提到 ladybugs are often used to control aphids,说明 ladybugs 是一种生物防治剂。反馈 收藏 ...
Like nuclear weapons and chemical agents, biological agents are considered weapons of mass destruction. Several features distinguish a biological agent from an ordinary infectious or disease-causing organism. Biological agents are often lethal, and they are highly effective, even in small amounts. They...
A biological hazard, also known as a biohazard, is an organism or a by-product from an organism that is harmful or potentially harmful to other living things, primarily human beings. Common types of biological hazards include bacteria, viruses, medical waste and toxins that were produced by or...
A meta-analysis of biological control agent performance. Biological Control, 34(3): 236.Stiling P, Cornelissen T (2005) What makes a successful biocontrol agent? A meta-analysis of biological control agent performance. Biol Control 34:236–246...
Skip to main contentSkip to article Journals & Books
Vaccination is the process in which material that is derived from a pathogenic entity is introduced into a person with the intention of provoking an immune response. It creates memory cells that can help in encounters with the actual pathogen. Answer and Explanation: 1 Become ...
But, apparently there is a different quality to the music, if the musician is on beta blockers. People say that it is more flat, and less passionate. I suppose that makes sense, as the heart beat might help people to regulate their timing when performing. ...
A pathogen is any organism that can cause disease. An example of a non-pathogenic bacterium is Bifidobacteria spp (considered to be a probiotic). An example of a pathogenic bacterium is Treponema pallidum (the causative agent of syphilis)....
It is used as an aerosol propellant industrially and as a blowing agent for polystyrene. Structure & Properties 2-Methylbutane (isopentane), C5H12, is a flammable liquid and exhibits physical properties very similar to those of pentane. It has been detected in urban air.2-Methylbutane is an ...
A drug is a chemical substance that produces a pharmacological effect when taken in by the biological system. There are seven different types of...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...