Which part of the plant absorbs water and minerals from the soil? A. roots B. stems C. leaves D. flowers 相关知识点: 试题来源: 解析 A。解析:植物的根从土壤中吸收水分和矿物质。B选项茎主要起支撑和运输作用;C选项叶主要进行光合作用;D选项花主要用于繁殖。
If you’re using filtered water, it’s also a good idea to use a Cal-Mag supplement to replace some of the minerals that are normally found in water. A Cal-Mag supplement also also adds extra “stuff” to help stabilize the pH of your water, which tends to fluctuate in filtered water...
There are four forms of tissue in the body: muscle tissue, connective tissue, nervous tissue and epithelial tissue. They are generally supplied oxygenated blood through the arteries. Answer and Explanation:1 The tissues of the body that need the substances listed above are as fol...
a) Water b) Protein c) Oxygen d) Carbon Dioxide What are Organic Compounds? An organic compound is a carbon-containing molecule held together by covalent bonds. The carbon backbone of an organic molecule often contains distinctive functio...
(a) glucose (b) sodium ions (c) trace amounts of protein (d) urea (e) water. Which system functions in the excretion of soluble nitrogenous wastes? (a) gastrointestinal (b) pulmonary (c) urinary (d) integumentary. Which ...
7. Oxygen is essential for water formation, metabolism, and key molecules such as proteins and carbohydrates. It binds to hemoglobin in the blood for transport from the lungs to the cells. 8. Phosphorus is found in bones, teeth, n...