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Eddi Din [679]
3 years ago
6

What are the steps in the experiment? (list four steps) How do the scientists test the hypothesis?​

Biology
1 answer:
Mandarinka [93]3 years ago
3 0

Answer:

Make an observation, create a hypothesis, test the hypothesis, draw conclusions and refine the hypothesis.

They test the hypothesis by stating the hypothesis, formatting an analysis plan, analyzing sample data from experiment, then interpreting the results in the conclusion.

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Please help me on both questions. i don’t know at all and i’m so confused
Mademuasel [1]

Answer:

cant really answer much since you need the class results for these. but i can simplify question 1. so, does the class results prove that the traits made my dominant alleles are the most common? or in other words, are traits made  by dominant alleles most common in the class results?

number 4 is yes because there are more possibilities that the dominant trait will occur than the recessive trait. therefore, it is more common and the conception is correct

6 0
3 years ago
What is the preferred method for assessing heart rate during chest compressions?
Dmitry [639]
An electronic cardiac monitor is the preferred method for assessing heart rate during chest compressions. While a person is performing chest compressions on a patient, he or she is hooked up to the electronic cardiac monitor so that the doctor can see exactly how fast the patient's heart is pumping blood. Cardiac monitoring is the best method do assess this. 
3 0
3 years ago
Read 2 more answers
A student isolates, purifies, and combines in a test tube a variety of molecules needed for DNA replication. After adding some D
aivan3 [116]

Answer:

DNA ligase

Explanation:

DNA replication is an enzyme mediated, 3-step process during which the DNA molecule produces a copy of itself. The 3 steps involved are as follows;

  • initiation
  • elongation
  • termination

<em>Initiation </em>involves the unwinding of the double helix structure of the DNA using DNA helicase enzyme

<em>Elongation</em> involves binding of RNA primer to the DNA strands and addition of bases to the primer<em> </em>to elongate the new chains. Bases are added to the leading strand continuously while the lagging strand is replicated in short segments (okazaki segments).

<em>Termination</em> involves the unbinding of RNA primer and substitution of its bases by DNA bases. The Okazaki fragments are then joined together using the DNA ligase enzyme.

<em>The short, numerous segments of DNA observed in the mixture is the Okazaki fragments of the lagging strand. This is due to the absence of the enzyme involved in the joining of these fragments.</em>

Hence, the answer is DNA ligase.

4 0
3 years ago
Activities human do that impact to biotic factors? Effect?​
3241004551 [841]
Besides wildfires, human settlements affect neighboring ecosystems through biotic processes, including exotic species introduction, wildlife subsidization, disease transfer, landcover conversion, fragmentation, and habitat loss.
5 0
3 years ago
All arteries except pulmonary artery carry pure blood. Why?
Marysya12 [62]

Answer:

All the arteries except pulmonary artery carry pure blood..it is so because blood flows with a high pressure and speed And because Arteries are situated deeper under the skin have thick-walled with Narrow lumen(cavity) and pulmonary artery carries deoxygenated blood i.e without oxygen..

Explanation:

lumen means Empty space within an object(solid)

hope this will help you mate✌✌

keep asking me the questions of Science..

please do follow me

7 0
3 years ago
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