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
blsea [12.9K]
3 years ago
15

What kinds of scientific investigations do not involve observations

Biology
1 answer:
Eduardwww [97]3 years ago
4 0
All science involves observation.
You might be interested in
The human body has about 10 bacterial cells for every eukaryotic cell. Bacteria coat our skin, gut, and mouth. Also present are
madreJ [45]

Answer:

can be mutualistic or antagonistic.

Explanation:

According to the given information, the bacterial species <em>Staphylococcus aureus </em>present in some nasal passages and on the skin do not harm the person. The ecological interaction wherein both organisms are benefited and none is harmed is known as mutualism. Here, <em>Staphylococcus aureus</em> does not cause any disease in human when present on the skin and in the nasal passage, that is both are in mutualism.

However, when present in the bloodstream, the same bacterial species can cause infections such as sepsis and represents antagonist effects on the host.  

Hence, the <em>staphylococcus aureus </em>species may be mutualistic or antagonistic to human.  

5 0
3 years ago
7. What causes greenhouse gasses to absorb heat when gasses like oxygen do not?
Scilla [17]

Answer:

Hope the below helps!

Explanation:

Greenhouse gases (such as methane, carbon dioxide etc) have lots of vibrating particles. These molecules eventually release radiation, which travels up Earth's atmosphere (because warm air rises), is trapped and adds to the greenhouse gas effect.

Oxygen and nitrogen don't interfere with infrared waves in the atmosphere. That's because molecules are picky about the range of wavelengths that they interact with.

I have attached a diagram that shows the greenhouse effect. It might help to visualise this.

3 0
2 years ago
Read 2 more answers
In sp²-hybridized orbitals, how many p-orbitals remain to form multiple bonds?.
olasank [31]

Answer:

1 remains

Explanation:

3 0
2 years ago
What is used to pass exciting electrons in the thylakoid membrane?
Minchanka [31]

Answer:

Photosystem I, however, does not act as a proton pump; instead, it uses these high-energy electrons to reduce NADP+ to NADPH. The reaction center chlorophyll of photosystem I transfers its excited electrons through a series of carriers to ferrodoxin, a small protein on the stromal side of the thylakoid membrane.

Explanation:

6 0
3 years ago
A stone is thrown upward with velocity 72 km/hr. if air resistance is neglected, find the maximum height travelled by it and the
labwork [276]

Answer:

s= 20.04m,   t=2.022s

Explanation:

4 0
3 years ago
Other questions:
  • What is the nucleolus
    8·1 answer
  • If a child has two genes for blonde hair (one from each parent), his genotype is said to be
    6·2 answers
  • How does the cantor plowing technique conserve soil?
    9·1 answer
  • Which gas is a source of natural groundwater pollution
    13·1 answer
  • Anyone good with proofs? I WILL AWARD BRAINLIEST TO CORRECT ANSWER AND 40 POINTS!
    11·1 answer
  • After plants absorb energy from the sun the energy gets converted into ____energy for the plant to carry out life activities .
    13·1 answer
  • How does using killed or weakened bacteria in an immunization help the body prevent infections?
    8·1 answer
  • Which of the following statements is true of fetal alcohol syndrome?
    11·1 answer
  • Why is gold so valuable? Is it found all over the world?
    5·2 answers
  • Can someone help me with this question
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!