Unlike identical twins, fraternal twins

A. are always the same sex

B. are produced from two identical embryos

C. result from two eggs fertilized by two different sperms.

D. is wrong

Climatology is a subspecialty of A. marine biology. B. oceanography. C. meteorology. D. environmental science.

The passing of biological information from generation to generation is called

A 3-month-old infant hospitalized with severe diarrhea has excoriated skin in the diaper area. the parents become concerned when they discover that the nurse has left the infant without a diaper. what is the nurse's explanation for this action?

When a red flower is crossed with a red flower you always get red flowers. When a yellow flower is crossed with a yellow flower you get all yellow flowers or sometimes you get yellow flowers and red flowers.

4. What does active transport mean?

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