Virus-infected beanstalk What they are - biological definition Plant viruses are microscopic infectious agents that affect plants and can cause plant viruses. These viruses parasitize plants, multiply and can cause them to die. These viruses are highly harmful to agriculture as they cause damage by killing plants or making the fruits unfit for consumption.
Introduction Echinoderms can, according to their body characteristics, be divided into five classes. Asteroid Class Main features: They have 5 arms that start in a disc located in the center of the animal's body. Example: starfish Echinoidea Class Main features: have a round or flat body.
Learning Objectives Associated with 2020_SS1_Bis2a_Facciotti_Reading_01Understand the importance of developing a personal study plan for success in BIS2A. Describe the scientific method and relate it to the material learned in class.Identify the dependent and independent variables and the control and test groups from a description of an experiment.