![subject](/tpl/images/cats/biologiya.png)
PLEASE HELP
An urban ecosystem is a designed ecosystem. Which of the following is (are) another example(s) of a designed ecosystem?
a. natural pond
b. a farm that has not been maintained for 10 years
c. fish aquarium
d. all of the above
16. Which of the following is an advantage of a synthetic fertilizer?
a. Amounts of nutrients can be precisely measured
b. Nutrients are lost from the soil through leaching
c. Benefits natural nutrient cycling
d. Less danger of overfertilizing
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 08:30
What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 14:10
What do we call the process when two dominant alleles are expressed and do not blend? a.incomplete dominance b.codominance c.multiple alleles
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 19:00
If garbage is left on the street flies in microbes can arise from nothing to feed on it true or false
Answers: 1
You know the right answer?
PLEASE HELP
An urban ecosystem is a designed ecosystem. Which of the following is (are) another exa...
Questions
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 18.08.2019 15:20
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.08.2019 15:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.08.2019 15:20
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.08.2019 15:20
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.08.2019 15:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.08.2019 15:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.08.2019 15:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.08.2019 15:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.08.2019 15:20
![question](/tpl/images/cats/mat.png)
Mathematics, 18.08.2019 15:20
![question](/tpl/images/cats/en.png)
English, 18.08.2019 15:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 18.08.2019 15:20