Which of these is the best method to measure the distance of a star
calculate the variations i...
Biology, 25.09.2019 16:00 andrespeerman
Which of these is the best method to measure the distance of a star
calculate the variations in the position of the star due to movement of earth in its orbit
measure the red shift of emitted light and use it in calculations
use doppler effect to calculate the shift in light traveling from star to earth in summer
use doppler effect to calculate the shift in light traveling from star to earth in winter
Answers: 1
Biology, 22.06.2019 04:00
What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.
Answers: 3
Biology, 22.06.2019 11:30
One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.
Answers: 2
Biology, 22.06.2019 15:00
Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans
Answers: 2
Biology, 29.01.2022 03:40
Mathematics, 29.01.2022 03:40
Mathematics, 29.01.2022 03:40
Arts, 29.01.2022 03:40
Mathematics, 29.01.2022 03:40
Mathematics, 29.01.2022 03:40
Medicine, 29.01.2022 03:50
Biology, 29.01.2022 03:50
Biology, 29.01.2022 03:50
Mathematics, 29.01.2022 03:50