According to the different degree of stem lignification, what three types of plants can be classified into?A.TreeB.ShrubC.HerbD.Liana 相关知识点: 试题来源: 解析 ABC 该句需要一个介词来表示“用眼睛看”。选项A“in”表示在...里面,选项C“use”是动词,只有选项B“with”表示“用”,符合句意...
3. The stem helps hold the roots up.What's the passage mainly about?A. Plant parts.B. Plant seeds.C. Plant leaves.D. Plant roots.In what subject might you learn this passage?A. Geography.B. Biology.C. Physics.D. Chemistry. 相关知识点: ...
All vascular plants are characterized by the presence of certain structures and tissues, including stem, leaves, roots and vascular tissue. Vascular tissue is made up of vessels called xylem and phloem, through which water and nutrients are transported....
What cell parts are found only in plant cells? Which part of a plant cell contains cell sap? What organelle is responsible for photosynthesis in a plant cell? Plant fiber is what type of cell? What structure surrounds the cell membrane in plants?
Large‐scale production of red blood cells from stem cells: What are the technical challenges ahead? Blood-transfusion centers regularly face the challenge of donor blood shortages, especially for rare blood groups. The possibility of producing universal r... GF Rousseau,MC Giarratana,L Douay - ...
Log In Sign Up Subjects Science What are cells of the upper epidermis called?Question:What are cells of the upper epidermis called?Plants:Plants are important for two reasons. First, they provide oxygen to the Earth?s atmosphere so that all living organisms can survive. Second, they make...
Stem (Nautical) The curved upright beam at the fore of a vessel into which the hull timbers are scarfed to form the prow. Shoot Used as a euphemism for ‘shit’ Shoot, it was a great day to be alive Stem The tubular glass structure mounting the filament or electrodes in an incandescent...
or pores that enable gaseous exchange. Stomata are usually found in plant leaves, but they can also be found in some stems. When it does not need carbon dioxide for photosynthesis, the plant closes these pores. The stomata in plants are enclosed by bean shaped cells called guard cells. ...
Plants obtain water through their roots. Because the cells absorb the water directly, the soil must be in contact with the roots in order for the roots to absorb the water. Stem Next, the nutrient-rich water enters the stem of the plant, and moves from there to lateral branches and leave...
Stem Leaves Flowers Fruits The study of plant organ tissue and cellular structure is known as plant anatomy. Cells serve as the fundamental building block of plants. Cells are organised into tissues, which are then organised into organs. Plant organs differ from one another in terms of their in...