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The study of plant response in space environments is another subject of astrobotany research. In space, plants encounter unique environmental stressors not found on Earth including microgravity, ionizing radiation, and oxidative stress. [23] Experiments have shown that these stressors cause genetic alterations in plant metabolism pathways.
Zinnia plant in bloom aboard an Earth orbiting space station. The growth of plants in outer space has elicited much scientific interest. [1] In the late 20th and early 21st century, plants were often taken into space in low Earth orbit to be grown in a weightless but pressurized controlled environment, sometimes called space gardens. [1]
The Vegetable Production System (Veggie) is a plant growth system developed and used by NASA in space environments. The purpose of Veggie is to provide a self-sufficient and sustainable food source for astronauts as well as a means of recreation and relaxation through therapeutic gardening. [ 2 ]
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Average score in Santa Rosa Science and Technology High School Entrance Examinations or STENEX for Junior High is at least 85% or above in three phases of assessment, namely: Proficiency Examination on Mathematics, Science and English; Mental ability/aptitude Examination; Interview
The exam is tripartite, consisting of a 50 question "easy" mathematics section, a 75 question survey science section, and a 15 question "challenge" mathematics section. The average acceptance rate for the program is usually around 10%. There are 300-400 participants in the program across all 3 grades (10,11,12). [5]
However, plants experience normal growth given that directional light is provided. [10] Normal growth is classified as opposite root and shoot growth direction. This being said, many plants grown in a space flight environment have been significantly smaller than those grown on Earth's surface and grew at a slower rate. [10]
The Independent School Entrance Examination (ISEE) is an entrance exam used by many independent schools and magnet schools in the United States. Developed and administered by the Educational Records Bureau (ERB), the ISEE has four levels: [1] the Primary level, for entrance to grades 2–4; Lower level, for entrance in grades 5–6; Middle level, for entrance in grades 7–8; Upper level, for ...