Friday, September 16, 2022
问题:藻类的生长方式:紫菜为散生长;海带是()生长;江蓠为顶端生长。...
Monday, April 29, 2024
Monday, September 12, 2022
问题:紫菜壳孢子放散有何规律?如何促进或者抑制壳孢子的放散?...
Monday, March 24, 2025
问题:杂交育种是指()、()个体间进行杂交,并在其杂种后代中通过选择而育成纯合品种的方法。...
Monday, September 2, 2024
Tuesday, August 20, 2024
Tuesday, March 11, 2025
Friday, April 14, 2023
问题:要保证海带幼苗下海后不发生或少发生病烂,一定要注意自然水温必须下降到()以下,并且稳定不再上升时方可出库。...
Wednesday, September 18, 2024
Wednesday, November 15, 2023
问题:下列藻类生活史中,配子体占优势的异形世代交替是()A、裙带菜B、紫菜C、海带D、萱藻E、礁膜...
Tuesday, August 20, 2024
问题:海带孢子体分三部分,内部为无色的,表面常见到暗褐色的是();细胞...
Friday, September 16, 2022
Friday, January 24, 2025
Tuesday, July 18, 2023
问题:贝壳丝状体是()钻入贝壳之中,在壳内萌发生长,形成的丝状体。...
Thursday, March 14, 2024
Thursday, December 19, 2024
Friday, April 26, 2024
Thursday, December 19, 2024
Monday, May 27, 2024
Tuesday, August 20, 2024