Monera

A)a one-celled algae that has a stiff cell wall
B)simple organisms like mushrooms and molds
C)an infectious disease carried by mosquitoes, harmful to humans
D)single-celled organisms such as some forms of algae
E)the green chemical that allows plants to create their own food

D) single-celled organisms such as some forms of algae.

What is the definition of a chloroplast?

A)the process by which sunlight is turned into sugars within a plant
B)the green chemical that allows plants to create their own food
C)a simple sugar found in plants
D)using another for one's own benefit; having to do with an organism that draws benefit from another
E)the bodies within a leaf that contain chlorophyll

E) the bodies within a leaf that contain chlorophyll.

The correct option for Monera is D) single-celled organisms such as some forms of algae.

To arrive at this answer, you can use the process of elimination and knowledge about Monera.

Option A states that Monera is a one-celled algae with a stiff cell wall. Although some algae are single-celled, Monera is a separate kingdom of life and does not refer specifically to algae with stiff cell walls. Therefore, option A is incorrect.

Option B suggests that Monera refers to simple organisms like mushrooms and molds. However, mushrooms and molds belong to the kingdom Fungi, not Monera. Hence, option B is incorrect.

Option C states that Monera is an infectious disease carried by mosquitoes and harmful to humans. Monera does not refer to a disease; it is a separate kingdom of life. So, option C is incorrect.

Option D states that Monera refers to single-celled organisms such as some forms of algae. This is the correct option. Monera is a kingdom that includes various single-celled organisms like bacteria and cyanobacteria (also known as blue-green algae).

Option E refers to chlorophyll, the green chemical that allows plants to create their own food. Chlorophyll is not directly associated with Monera, so option E is incorrect.

In conclusion, the correct answer is D) single-celled organisms such as some forms of algae.