Biology, 10.03.2020 04:10 catcatscats122
Avery and his colleagues extract material from a killed sample of lethal bacteria. They eliminated carbohydrates, proteins, fats, RNA, and DNA from the extract and showed that exposure to the DNA alone could make non-lethal bacteria become deadly. What does this observation demonstrate about DNA
Answers: 2
Another question on Biology
Biology, 21.06.2019 19:30
Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.
Answers: 2
Biology, 21.06.2019 20:20
Turtle hatchling survivorship rate is low in many turtle species due to predation. amanda researched the predatory rate on a species of turtle eggs in the red river. the eggs were harvested from trapped turtles and the egg's cloaca film (reproductive discharge) was either washed off or left on once gathered. research suggests that predators use the female's cloaca scent to locate the eggs. the eggs were only handled when wearing gloves and then reburied along islands where the turtles were trapped. the nests were monitored by cameras and manually on foot and data on nest predation were recorded. a. based on the experimental design, what is the dependent variable? b. based on the experimental design, what is the independent variable? c. based on the experimental design, what is the control?
Answers: 3
Biology, 21.06.2019 21:00
Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley
Answers: 2
Biology, 22.06.2019 07:40
Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one
Answers: 1
You know the right answer?
Avery and his colleagues extract material from a killed sample of lethal bacteria. They eliminated c...
Questions
Mathematics, 19.05.2021 02:30
Mathematics, 19.05.2021 02:30
Mathematics, 19.05.2021 02:30
Mathematics, 19.05.2021 02:30
German, 19.05.2021 02:30
Social Studies, 19.05.2021 02:30
Mathematics, 19.05.2021 02:30
