Biology, 24.01.2020 02:31 palcochran1313
How is the nitrogen cycle important to humans?
a)it produces noe nitrogen that humans can breathe
b)it converts nitrogen into a form that humans can obtain by eating other organisms
c)it produces nitrogen compounds that humans can breathe
d)it converts nitrogen into a form that humans can obtain by absorbing it through their skin
Answers: 1
Biology, 21.06.2019 22:00
What types of energy transfers and energy transportations are involved in the domino chain reaction?
Answers: 1
Biology, 22.06.2019 01:30
Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.
Answers: 1
Biology, 22.06.2019 08:30
Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.
Answers: 3
Biology, 22.06.2019 09:00
Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.
Answers: 3
How is the nitrogen cycle important to humans?
a)it produces noe nitrogen that humans can brea...
a)it produces noe nitrogen that humans can brea...
Social Studies, 06.03.2021 18:40
Mathematics, 06.03.2021 18:40
English, 06.03.2021 18:40
Mathematics, 06.03.2021 18:40
Mathematics, 06.03.2021 18:40
Physics, 06.03.2021 18:40
Biology, 06.03.2021 18:40
Biology, 06.03.2021 18:40