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mylen [45]
3 years ago
15

Which of the following is usually done first in the scientific method of investigation?

Biology
2 answers:
Tasya [4]3 years ago
4 0
Answer is- ask a question based on an observation
Ganezh [65]3 years ago
4 0

The correct answer is B. Ask a question based on an observation

Explanation:

The Scientific Method is a process with multiple steps that allow scientist and individuals to study a phenomenon and prove or disprove a hypothesis. This method includes first observing a phenomenon, defining it and asking questions; research on the topic if necessary; then creating a hypothesis or possible explanation; testing the hypothesis through experiments; analyze and interpret the data; publish the results and finally suing more experiments if necessary. According to this, the step that is first done in the Scientific Method is "Ask a question based on an observation" because this goes before any other steps.

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if a microscope has an ocular with a 5x power and has objectives with powers of 10x and 50x what is the total magnification of a
Dafna1 [17]
Low power 50x (5x10)
high power 250x (5x50)

If you want to calculate the microscope power of magnification you have to multiple the magnification power of the ocular with the magnification power of the objectiv.
4 0
3 years ago
Read 2 more answers
Which of the following best explains what would happen if there were no decomposers in an ecosystem?
azamat

Answer:  if there were no decomposers in an ecosystem then, wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem.

Explanation:

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3 years ago
▪️Chapter - The fundamental unit of life
Rashid [163]

Answer:

The difference between Prokaryotic cell and Eukaryotic cell are;

\begin{array}{lll}&\underline {\text {Prokaryotic}}& \underline {\text {Eukaryotic}}\\ \\ \text {Nuclear \ membrane \ and \ nucleus} & \text {No \ true \ nucleus \ or}    & \text {Has \ a \ true \ nucleus} \\& \text {nuclear \  membrane} & \text {nucleoli \ and \ nuclear \ membrane}\\\\ \text {Membrane \ bound \ cell \ organelle} & \text {None &Present} \\\\ \text {Chromosome \ number \ and \ shape} & \text {One} & \text {Several, more \ than \ one} \end{array}

Explanation:

Prokaryotic cells

The plasma membranes surround prokaryotic cells, however, within their cytoplasm, there are no organelles bound to the membrane and there is no nucleus in the prokaryotic cell which differentiates it from the eukaryotic cells

Eukaryotic cells

Eukaryotic cells also have plasma membranes, ribosomes and cytoplasm. Eukaryotic cells also have membrane-bound nucleus, membrane bound organelles, such as chloroplast, mitochondria, endoplasmic reticulum, and Golgi apparatus which together differentiates it from a prokaryotic cell

4 0
3 years ago
Which are segments of dna that code for spicific traits ?
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Answer:

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8 0
4 years ago
The mrna codon CUU could mutate to C___ and still code for leucine, which could be a neutral mutation. What is the blank?
Lelechka [254]
A codon is a sequence of three bases found on the messenger RNA (mRNA) molecule which is translated to produce an amino acid. Each amino acid is coded by one or more specific codons. If the codon is changed through a mutation, the amino acid produced may be different. However, in this case, the other codons that produce Leucine are:

UUA, UUG, CUU, CUC, CUA and CUG

So the code CUU could mutate to CUC, CUA or CUG and leucine would still be produced.
8 0
3 years ago
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