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Gelneren [198K]
3 years ago
5

Scientific investigation can be conducted in a______or in the________​

Biology
2 answers:
Leni [432]3 years ago
3 0

Answer:

experiment; observation

weqwewe [10]3 years ago
3 0
Experiment and observation is the two correct choices
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Temka [501]

Answer:

25%

Explanation:

7 0
3 years ago
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Select ALL answers that were Darwin’s findings based: a. Organisms descended from a common ancestor b. Natural selection is a me
vesna_86 [32]

Answer:

Darwin’s findings based:

a. Organisms descended from a common ancestor

Explanation:

Darwin thought of evolution as "descent with modification," a process in which species change and give rise to new species over many generations. He proposed that the evolutionary history of life forms a branching tree with many levels, in which all species can be traced back to an ancient common ancestor.

7 0
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List the steps that should be followed to clean and disinfect clipper blades effectively
scZoUnD [109]
Are you talking about garden clippers hair clippers or nail clippers

7 0
3 years ago
What do having the measles and being vaccinated against the measles have in common?
photoshop1234 [79]

They are both forms of active immunity.

<h3>What is active immunity?</h3>

When our own immune system defends us against a pathogen, this is known as active immunity. Our immune system develops active immunity when exposed to a potential disease-causing substance (i.e., pathogen). Active immunity is crucial since it not only "fights off" these pathogens but also lasts a very long period in the form of immunologic memory.

B and T lymphocytes with the ability to recognize a particular pathogen make up immunologic memory. These cells circulate at low levels in human bodies, but if they become "activated" by encountering the pathogen while traveling, they rapidly begin to multiply and send signals to other immune system components to do the same. There are two reasons memory cells are important. They first help our immune systems react swiftly. The immune response is prepared the moment the infection is contacted since they are secondly pathogen-specific.

I understand the question you are looking for is this:

What do "having the measles" and being vaccinated against the measles have in common?

  1. They are both forms of active immunity.
  2. They are both forms of neutral immunity.
  3. They are both forms of passive immunity.
  4. They are both forms of infection.
  5. They are both forms of immune deficiency.

Learn more about active immunity here:

brainly.com/question/13778292

#SPJ4

7 0
2 years ago
Which of the following best explains how homologous structures show evidence of evolution?
mrs_skeptik [129]
Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features)
3 0
3 years ago
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