Cacti are plants that live in extremely dry environments. Unlike most other plants, cacti do not have regular leaves, but instead, have spines. They do have green stems. How would the lack of regular leaves help cacti survive in their environment

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine

What is the primary function of the nervous system?