The monocotyledonous plants are ().
A: Magnoliaceae
B: Geographic isolation
C: Nymphaeaceae
D: Reproductive isolation
E: Ranunculaceae
F: Ecological
isolation
G: Alismaceae
The
liriodendron tulipifera in southeast America and tulip tree in south
China keep the two species separated by (A)
H: Mechanical isolation
[单选题][2分][难度3]
A: Magnoliaceae
B: Geographic isolation
C: Nymphaeaceae
D: Reproductive isolation
E: Ranunculaceae
F: Ecological
isolation
G: Alismaceae
The
liriodendron tulipifera in southeast America and tulip tree in south
China keep the two species separated by (A)
H: Mechanical isolation
[单选题][2分][难度3]
举一反三
- The categories of isolation generally include _________, _________ and ___________. A: geographical isolation B: artificial isolation C: ecological isolation D: isolation of breeding season
- 生殖隔离（reproductive isolation）
- The<br/>Congress has passed some new( )on protection of privacy on the<br/>Internet. A: registration B: legislation C: isolation D: cancellation
- The main use of liquid medium is () A: isolation<br/>of single colony B: identification of strains C: observation of<br/>bacterial motility D: bacteria enrichment E: detection of bacterial<br/>toxins
- Which of the following is correct about the definite treatment site<br/>for the new coronavirus pneumonia. ( <br/>) A: Suspected and confirmed cases should be isolated and treated in<br/>designated hospitals with effective isolation and protection<br/>conditions. B: Single patient isolation treatment for suspected patients. C: Suspected patients can be admitted to the same ward. D: Confirmed patients can be admitted to the same ward. E: Critical cases should be admitted to ICU as soon as possible.