Yes, cacti are dicots.
Cacti and cactuses are the two the plural forms of cactus.
Cacti are natives only to the Americas. If there are any cacti in the Sahara they did not get there naturally and may have become a noxious invasive species.
No, agaves are not cacti. They are more closely related to a lily than a cactus.
Water does not make oxygen in plants.
Some owls make their homes in cacti.
I believe the desert gets oxygen from Cacti. Also from the rest of the planet. Oxygen is all around the planet. Winds carry the wind through the atmosphere to all parts of it, plants and other desert shrubs including cacti help to give the desert it's own form of localized oxygen.
Saguaro Cacti are a member of the Cactaceae family and are succulent plants. A Saguaro Cactus can produce oxygen at night.
It is not a cactus at all, it is the Blue Agave that is used to make tequila. Agave plants are succulents not cacti.
overwatering will cause the roots to rot
Organ pipe cacti make no noise.
Cam Pathway
According the Genesis, day three of creation.
Yes: Prickly Pears, Barrel cacti, Saguaro cacti, Aztekium cacti, and Echinopsis cacti a.k.a the hedgehog cactus
cactus for a single plant cacti for plural
All cacti are succulents, but not all succulents are cacti.
No, mealworms do not eat cacti and cacti do not occur naturally in the Sahara. Cacti are natives to American deserts.