Algae are photosynthetic, but they are also unicellular organisms (Euglena) and shares some of the common features with plants as well as animals. They move like animals and perform photosynthesis like plants. Therefore, they are classified into Protists, and not the Algae. Their most features resemble the non-photosynthetic protozoa, and not plants, and therefore, are put into the Protista.
They also lack a cell wall, which is a feature of plants.
Some scientists advocate their classification in plants because of their sexual mode of reproductiona, and formation of spores.
D) DNA.
Hope this helps!
-Payshence xoxo
In the 1950's biochemists stanely miller and harold urey preformed <span>an </span>experiment<span> which demonstrated that several organic compounds could be formed unplanned by simulating the conditions of the Earth's early atmosphere.</span>
Answer:
a. the trp repressor dissociates from DNA.
Explanation:
trp operon is transcribed when:
Bonus: trip is present in low concentrations (not high concentration as option c suggest) inside the cell
