The concept of herd immunity applies to:
a. all infectious diseases
b. all contagious d...
Biology, 22.09.2019 01:30, Darkknighta26
The concept of herd immunity applies to:
a. all infectious diseases
b. all contagious diseases
c. all infectious and all contagious diseases
d. neither all infectious nor all contagious diseases
Answers: 1
Biology, 22.06.2019 02:00, paiged55
Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi, r^3 , where r is the sphere’s radius.
Answers: 1
Biology, 22.06.2019 08:00, notseansafe
This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.
Answers: 2
Biology, 22.06.2019 11:20, gamallopatty
Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in tanzania, from a period slightly after the time that homo habilis was present in africa. these sites clearly were founded by homo erectus, the descendent species of homo habilis that migrated north, out of africa and into asia. homo erectus was known to have mastered fire, from ample evidence at sites in asia. there is no reason to attribute mastery of fire to homo ergaster, the descendent species of homo habilis that remained in africa. which of the following is an assumption on which the argument depends? (a) before their migration, homo erectus occupied african territory as far south as tanzania.(b) the strain of migration provided the selective pressure motivating homo erectus‘ mastery of fire.(c) homo ergaster would not have derived as much benefit from the mastery of fire as did homo erectus.(d) homo ergaster inherited all cultural knowledge from homo habilis, a species that did not have mastery of fire.(e) homo ergaster did not occupy regions as far south as tanzania until well after the time of these three sites.
Answers: 2
Biology, 22.06.2019 16:30, gujaratif932
Which of the following is an example of competition a. the leaves of a tree prevent a small shrub from getting sunlight. three species of birds feed a different heights in the same tree. b. three species of birds feed at different heights in the same tree c. zebra and giraffe’s feed on different grassland plants d. cats living in two different homes eat the same brand of cat food.
Answers: 1
Mathematics, 25.01.2021 19:10
Mathematics, 25.01.2021 19:10
Mathematics, 25.01.2021 19:10
Mathematics, 25.01.2021 19:10
Mathematics, 25.01.2021 19:10
Mathematics, 25.01.2021 19:10
Mathematics, 25.01.2021 19:10
Mathematics, 25.01.2021 19:10