Which of the following describes a situation of scarcity?

a. someone offers free advice about getting into college.

b. a person lets the kids in the neighborhood use his pool.

c. someone distributes free bottles of water at the beach.

d. a child charges friends for a ride on his new bike.

Ahypothesis that has been tested again and again , with similar results each time may become a law , true or false

Sand spinifex grass is adapted to growing on sand dunes. it is a rapidly spreading plant and the creeping runners produce new root systems. which of these best explains the benefits of these features? a. it limits water loss through the leaves. b. it provides support by anchoring the plant. c. it protects the plant from predators. d. it allows the plant to tolerate salt. reset submit

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality