![subject](/tpl/images/cats/biologiya.png)
in high elevation forests n Pennsylvania, ecologists have noticed a serious decline in certain tree species. Some scientists propose that increased soil acidity might be the cause. Whats the phenomenon? A. Mercury contamination B. Decreased in pH caused by climate change C. Acid rain, which is caused by SO2 from combustion mixed with atmospheric water vapor D. Ozone depletion
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 20:00
The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 06:30
Which of the following is a common response to cell signaling?
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 09:10
Explain the cellular functions that occur when antibiotics attack a bacteria cell. a. antibiotics target the cell wall, cell membrane, and the processes of protein and nucleic acids production in bacteria to rupture the cell. b. antibiotics create dormant resistant endospores to preserve the genetic material and rupture the cell. c. antibiotics target the cell wall and form a bridge-like connection to form conjugation. d. antibiotics use binary fission to grow twice its size, replications its dna, and split into two cells.
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 10:00
Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.
Answers: 1
You know the right answer?
in high elevation forests n Pennsylvania, ecologists have noticed a serious decline in certain tree...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.04.2020 07:12
![question](/tpl/images/cats/mat.png)
Mathematics, 10.04.2020 07:12
![question](/tpl/images/cats/mat.png)
Mathematics, 10.04.2020 07:12
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 10.04.2020 07:14
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.04.2020 07:14
![question](/tpl/images/cats/mat.png)
Mathematics, 10.04.2020 07:14
![question](/tpl/images/cats/himiya.png)
Chemistry, 10.04.2020 07:14
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.04.2020 07:15
![question](/tpl/images/cats/mat.png)