Natural selection chooses which variations become prevalent in a population through environmental pressures. Which of these is an environmental pressure which can lead to natural selection?

A species of fly has two alleles for the length of their legs. the allele for long legs is dominant, and is represented by p. the allele for short legs is recessive, and is represented by q. if 33 of 100 organisms have short legs, what is p

How many atoms of each element does sodium carbonate, Na2CO3, contain? Sodium = 1 atom, Carbon = 2 atoms, Oxygen = 3 atoms Sodium = 1 atom, Carbon = 1 atoms, Oxygen = 3 atoms Sodium = 2 atoms, Carbon = 1 atom, Oxygen = 3 atoms Sodium =

Why are modern homes more likely to have higher indoor pollution? A. They use kerosene heaters B. They use asbestos to prevent fires. C. They have central heating and air conditioning D. They are tightly sealed from the outside

Menstrual flow results in the discharge of select one: a. the follicle. b. the corpus luteum. c. the endometrial lining of the uterus. d. surface cells from the vagina. e. blood from the blood vessels on the outer surface of the uterus.

Which key morphological feature is used to classify organisms as mammals A. The presence of fur B. fertile offspring C. Mammary glands D. Two-legged upright posture

How does mccandless compared with the other wanderers?

If an individual inherits two of the same alleles, either both recessive or both dominant for a particular trait, the inherited genotype is what

What aspects of abundance do population density and population size measure, respectively?

What's an example of a multicellular producer

Are microorganisms alive and do microorganisms affect humans