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Rainbow [258]
3 years ago
12

What are the scientific method steps?

Biology
2 answers:
vovangra [49]3 years ago
6 0

Answer:

1.Make an observation.

2.Ask a question.

3.Form a hypothesis, or testable explanation.

4.Make a prediction based on the hypothesis.

5.Test the prediction.

6.Iterate: use the results to make new hypotheses or predictions.

Explanation:

fomenos3 years ago
3 0

Answer:

ask a question background research form  hypothesis experiment and observe draw a conclusion

Explanation:

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<h2>Muscle contraction in cytoplasm </h2>

Explanation:

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3 years ago
In a cross between two heterozygous individuals (eg. Rr X Rr), the expected phenotypic ratio of the offspring would be A) 1:2:2:
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3:1.<span> The physical appearance of the </span>offspring<span> will be 3 </span>organisms<span> that look like the </span>parents<span>: 1 individual that differs in appearance.</span>
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3 years ago
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1. which pairing matches the structures shown in the cell diagrams with th
Mademuasel [1]

Explanation:

D. E: photosynthesis; D: cellular respiration

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent.

In the light reactions, occuring within the thykaloid, and stroma of the chloroplasts, water supplies the pigment chlorophyll with replacement electrons for the ones removed from photosystem II. Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions. NADP and NADPH are integral to the dark reactions, or Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules.

Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’s cycle via the oxidization of pyruvate (through the process of glycoysis). The electron transport chain, in which oxygen functions as the terminal electron acceptor, occurs in both plants and animals. Respiration includes:

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  • The Kreb's cycle: in the mitochondrial matrix- 6 molecules of CO2 are produced by combining oxygen and the carbon within pyruvate, 2 ATP oxygen molecules, 8 NADH and 2 FADH2.
  • The electron transport chain, ETC: in the inner mitochondrial membrane, 34 ATP, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen; this forms 6 H2O, 10 NAD+, 4 FAD.

Learn more about cellular respiration at brainly.com/question/11203046

Learn more about Photosynthesis at brainly.com/question/4216541

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

6 0
3 years ago
Special features of an euglena​
Svet_ta [14]

Answer:

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7 0
2 years ago
Why o we need a reverse compliment for pcr amplifying?
navik [9.2K]

Solution:

Since, DNA occurs as a double strand where each A is paired with a T and vice versa, and each C is paired with a G and vice versa. The reverse complement of a DNA sequence is formed by reversing the letters, interchanging A and T and interchanging C and G. Thus the reverse complement of ACCTGAG is CTCAGGT.

And DNA has two strands: Forward and reverse. Miseq is the technique to sequence the DNA for various purposes such as mutation detection, important for disease diagnosis. Hence, one need to find the mutations in both strands rather than only the forward to strand, to prevent false positives and other artifacts.  

This is the required answer.

4 0
3 years ago
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