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Serggg [28]
3 years ago
15

Which best describes the ecosystems on Earth? A. Earth has mostly rainforest ecosystems. B. Separate ecosystems can affect each

other. C. Ecosystems do not interact with each other. D. There are very few types of ecosystems on Earth.
Biology
2 answers:
Vinil7 [7]3 years ago
8 0

Answer:

Separate ecosystems can affect each other.

otez555 [7]3 years ago
4 0

Answer: B. Separate ecosystems can affect each other

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Pathogen A has an ID50 of 50 particles, pathogen B has an ID50 of 1,000 particles, and pathogen C has an ID50 of 1 × 106 partic
klemol [59]

Answer:

Option A, pathogen A

Explanation:

ID50 is a way to measure the virulent efficiency of a pathogen. ID50 for a pathogen depicts the number of pathogens required to infect or cause the associated disease with in 50 percent of any population sample.

This means that 50 pathogens A can infect 50 percent  of any sample population.

While 1000 pathogen B and 1000000 pathogen C are required to infect 50 percent  of any sample population.

hence, Most virulent pathogen is Pathogen A

6 0
3 years ago
Liquid has a volume of 12.0 mL and a mass of 6g what is the density
Mashcka [7]
Desity=V/M so you would divide 12.0 by 6 and you would get 2.

The answer is 2.
8 0
3 years ago
What are the characteristics of the<br> limnetic zone?
sergiy2304 [10]

Answer:

Explanation:

The near-surface open water surrounded by the littoral zone is the limnetic zone. The limnetic zone is well-lighted (like the littoral zone) and is dominated by plankton, both phytoplankton and zooplankton. Plankton are small organisms that play a crucial role in the food chain.

3 0
3 years ago
Read 2 more answers
What is the difference between totipotent, pluripotent, and multipotent stem cells? Discuss the three main types of stem cells a
Brums [2.3K]

Answer:

Totipotent (omnipotent) stem cells can give rise to any of the 220 cell types found in an embryo as well as extra-embryonic cells (placenta). Pluripotent Stem Cells Pluripotent stem cells can give rise to all cell types of the body (but not the placenta). Multipotent Stem Cells Multipotent stem cells can develop into a limited number of cell types in a particular lineage.

Explanation:

6 0
3 years ago
If cleansing beneath the foreskin is inadequate, a voided urine specimen may contain _____. a. Escherichia coli b. Staphylococcu
Mandarinka [93]

Answer:

The correct answer is - Mycobacterium smegmatis.

Explanation:

Mycobacterium smegmatis is an acid-fast bacterial that present almost everywhere but it can also be found under the foreskin that has a substance called smegma.

If a urine sample is collected without cleansing adequately under foreskin, this ample may contain this bacteria in the sample. One should clean the beneath the foreskin properly to prevent the sample to get voided.

7 0
3 years ago
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