Biology, 05.02.2022 04:50 clydeben4543
A student is conducting research on the impact of humans on whooping crane populations in the North America, Which statement best supports the student's claim that animals have been positively impacted by human intervention? (1 point)
Answers: 2
Biology, 21.06.2019 14:50
Where do homologous chromosomes exchange genetic material through crossing over? a. chlorophyll b. centrosomes c. centromeres d. chiasma
Answers: 2
Biology, 22.06.2019 00:20
1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.
Answers: 1
Biology, 22.06.2019 13:20
Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.
Answers: 1
Biology, 22.06.2019 14:00
Organelles found in plant cells that function through photosynthesis to produce glucose from carbon dioxide and water are called — question 21 options: chloroplasts guard cells photosynthons
Answers: 1
A student is conducting research on the impact of humans on whooping crane populations in the North...
Mathematics, 24.04.2021 20:50
Mathematics, 24.04.2021 20:50
Mathematics, 24.04.2021 20:50
Mathematics, 24.04.2021 20:50
Biology, 24.04.2021 20:50
Physics, 24.04.2021 20:50
History, 24.04.2021 20:50
English, 24.04.2021 20:50
Mathematics, 24.04.2021 20:50
Social Studies, 24.04.2021 20:50
Spanish, 24.04.2021 20:50