During which era did plants first appear on land?

Cenozoic

Mesozoic

Paleozoic

Precambrian

In general wjat advantages if any do bony dish have over sharks?

Darwin observed that the finches on two different islands in the Galapagos belong to the same family but showed a lot of variations in their beak size and shape how can this variation be justified

Which of these is a natural resource people obtain from a rangeland? A. Building Materials B. Feed for livestock C. Lumber D. Food Crops

What is the difference between a single gene trait and a complex (polygenic) trait?

What is the best approach to prevent the spread of a bacterial infection?

Are poisonous substances produced by bacteria

Which is the correct order of the parts through which urine flows in a nephron? loop of Henle - glomerulus - Bowman's capsule Bowman's capsule - loop of Henle - glomerulus glomerulus - Bowman's capsule - loop of Henle

Mitohondria is responisble for? a. DNA maintance b. storage c. protein production d. procviding energy for the cell

Cell differentiation refers to: a) cell organelles with different structure b) all the functions inside a cell c) the difference between plant cells and animal cells d) different functions inside an organism

Identification and location of genes on chromosomes that might affect cholesterol metabolism has been difficult because many of the genes that affect this trait interact, a phenomenon that is called epistasis. T or F?