What are the three types of authotroph

What tree species is a hardwood used for structural timbers, flooring, and furniture?

Which source causes the skin to warm up when a person stands in the sunlight on a hot summer day UV light microwaves radio waves infrared light

What is the meant by the following statement the cell membrane is said to be "fluid"?

Genetic regulation in prokaryotes can involve alterations in rna secondary structure. what phenomenon occurs in the trp operon that involves such alterations?

Which is an external stimulus? A. Thirst B. Hunger C. Pain D. Heat

What is the flotation method used to determine? Mass Density Volume Color

Fossil records suggest major changes in early vascular plants that favored the evolution of land plants. Which was one of these major changes? Select one of the options below as your answer: A. Development of fruit B. Development of seed C.

Many people in the developing world who depend on rice in their diet suffer from diseases related to deficiencies of

Why does biology have to be a subject

Differential reproduction of genotypes leads to evolution via what process? inbreeding natural selection genetic rescue genetic drift mutational load