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.
This statement is incomplete.
"All plants give out oxygen during day and carbon dioxide during night"
Explanation :
Photosynthesis occurs only during day time.
During this time oxygen is produced . Some oxygen is used for respiration and rest of oxygen is diffused out into air.
Carbon dioxide produced during day time by respiration is used in photosynthesis.
But at night time, no photosynthesis occurs and hence no oxygen is produced oxygen from air diffuses into leaves to carry out respiration and carbon dioxide produced by respiration diffuses out into air.
Hence Respiration occurs day and night .. Hence Carbon dioxide is emitted all the time....
Plz Mark Brainliest trying to reach expert
Summary. Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique.
