1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
maks197457 [2]
3 years ago
14

As trees along a heavily shaded stream are cut down for farm land, the Environmental Protection Agency (EPA) must measure change

s to the local stream habitat. Water samples from the stream are collected over time. The microorganisms are counted and classified in order to track changes.
EPA researchers MOST LIKELY used a __________ to view the microorganisms in the stream water samples.

A)
light microscope


B)
magnifying glass


C)
computer simulation


D)
scanning electron microscope
Biology
2 answers:
marusya05 [52]3 years ago
7 0

Answer:

A) light microscope

Explanation:The EPA researchers would use a light microscope to count and classify the microorganisms present in the stream water samples. A magnifying glass would not be strong enough; a scanning electron microscope would be too powerful. A computer simulation does not analyze real data.

astra-53 [7]3 years ago
3 0

Answer: A. light microscope

Explanation: usatestprep approved

You might be interested in
What kind of matter if formed when atoms of two or more elements bond
Y_Kistochka [10]
The answer is Compound 
7 0
3 years ago
Read 2 more answers
Which of the following statements is the most correct regarding homeostatic imbalance? A. It is considered the cause of most dis
AfilCa [17]

Answer:  C. Positive feedback mechanisms are overwhelmed.

Explanation:

Homeostasis, is the maintenance of a normal internal environment, in the face of external and internal disturbances, so that the functions of cells and systems of the body are preserved. This is accomplished primarily through feedback systems, so when a system is disturbed, a diversity of local responses, systemic reflexes (rapid reactions and automatic stimuli) and long-term adjustments are activated to bring the system back to its normal equilibrium point.

Most systems are controlled by negative feedback mechanisms, with the controlled variable being able to "turn off" its release, in the same way as a thermostat controls the temperature of a room. So, in this context, too much positive feedback would be related to harmful effects, such as homeostatic imbalance.

8 0
3 years ago
Tenho uma dúvida sobre uma coisa, por favor me expliquem para onde vai a água da chuva que cai sobre a areia, já que dificilment
laiz [17]
El dificilmenta  es la  lugar crao
8 0
3 years ago
Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of
IgorLugansk [536]

Photosynthesis deals with plants that are a living being receiving energy from sunlight which is not living.            

4 0
3 years ago
ASAP plz
yanalaym [24]

Answer:

Pressure with Height: pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.In addition, gravity is weaker at the equator due to centrifugal forces produced by the planet's rotation. It's also weaker at higher altitudes, further from Earth's centre, such as at the summit of Mount Everest

8 0
3 years ago
Other questions:
  • 1. What are the biotic factors of an ecosystem?
    12·2 answers
  • The carbohydrates seen here contain three common elements. they are
    13·2 answers
  • Earth is made mostly of metals and rocks. where did this material come from?
    5·1 answer
  • Which positive result could develop if carbon dioxide increases in the atmosphere?
    9·1 answer
  • Match each moon or planet to the most accurate characteristic.
    8·1 answer
  • Why is it important that alhazen begin t test his hypothesis with experiments?
    10·2 answers
  • The group that includes gorillas, chimpanzees, bonobos, and humans is called the
    8·2 answers
  • Who first used the word cell to describe the basic structure unit of life?
    12·2 answers
  • Which postmortem parameter begins at 3 days
    13·1 answer
  • Can someone please help me with this
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!