AP BIOLOGY

Detailed explanation-1: -Cacti are adapted to live in very dry environments, including the Atacama Desert, one of the driest places on Earth. Because of this, cacti show many adaptations to conserve water.

Detailed explanation-2: -There are about 1, 650 species, or types, of cactus. These plants grow mainly in the dry areas of the United States, Mexico, Central America, and South America. Mexico has the greatest number and variety of cacti.

Detailed explanation-3: -The desert biome is an ecosystem that forms due to the low level of rainfall it receives each year. Succulent plants are one of the famous plants grown in these areas. Q. Cactus is a succulent plant with a thick fleshy stem that stores .

Detailed explanation-4: -Almost all genera of cacti arose in the Americas and are distributed from Canada to Chile. They are now found in many parts of the world, especially Australia, South Africa, and Mediterranean countries.

Detailed explanation-5: -These plants include: yuccas, ocotillo, turpentine bush, prickly pears, false mesquite, sotol, ephedras, agaves and brittlebush. The animals include small nocturnal (active at night) carnivores. The dominant animals are burrowers and kangaroo rats. There are also insects, arachnids, reptiles and birds.