MCQ
Ecosystem may be defined as _______?
- AGroup of plants which act as the energy suppliers
- BGroup of organisms which form population
- CFunctional unit of environment
- DAll of the above
Explanation:
The ecosystem is a segment of nature or biosphere consisting of a community of living beings and the abiotic or physical environment both interacting and exchanging materials between them. The ecosystem is defined as a functional unit of environment, which is independent and self-sustaining due to various interactions between abiotic and biotic components and different organisms among themselves.
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Statement $I:$ Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct.
Statement $II:$ The cavity of the cervix is called cervical canal which along with vagina forms birth canal.
In the light of the above statements, choose the correct answer from the options given below:
$I$. Ensuring cross-pollination
$II$. Preventing self-pollination
$III$. Ensuring self-fertilisation
$IV$. Genetic control for self-fertilisation
Choose the correct statements from those given above