In a population of weasels, black (r) is the dominant color and white (w) is the other dominant trait. in weasels, fur color follows a pattern of codominance. the heterozygous genotype produces black and white spotted weasels. consider the genetic cross shown in punnett square. if there are 60 baby weasels born as a result of the cross, how many should be spotted? a) 15 b) 20 c) 30 d) 60

What is the cause hearing loss in human being

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. once a virus gains entry into the body, it invades a host cell in order to? a. synthesize antibodies for defense b. deactivate the host cell's defenses c. access cell processes for reproduction d. metabolize host proteins and grow