Question

Which kingdom lacks a well-defined nucleus and membrane-bound cell organelles?

Answer 1

Kingdom:

1. The second highest taxonomic rank, after domain, is the kingdom.
2. Kingdoms are subdivided into species, which are smaller groups.
3. The kingdom which lacks a well-defined nucleus and membrane-bound cell organelles is Monera.

Monera:

1. They are single-celled organisms that prefer a moist environment to thrive in.
2. They live as parasites on other organisms and in thermal springs, snow, and oceans.
3. Monerans do not have membrane-bound organelles.

Monera's Characteristics:

1. Entities with the cellular composition of a prokaryote that are unicellular.
2. In the carbon and nitrogen cycles, metabolically diverse organisms that use a variety of substrates as carbon and energy sources play a role.
3. Their peptidoglycan-based cell wall is rigid.
4. They are environmental decomposers and mineralizers with a variety of feeding modes.