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mr Goodwill [35]
3 years ago
15

You are required to draw a food web where the same organism is a primary consumer as well as a secondary consumer. How should th

e organism be represented in the food web?
Biology
1 answer:
Reil [10]3 years ago
6 0

Answer:

ur mom

Explanation:

Ahahahha

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Ventricular systole begins during the __________ phase of the cardiac cycle. Ventricular systole begins during the __________ ph
Zina [86]

Answer

              Ventricular systole begins during the  <u>isovolumetric contraction </u>phase of the cardiac cycle.

Explanation

1. Ventricular ejection

The forceful expulsion of blood from the ventricles into the aorta and the pulmonary arteries.

2. Isovolumetric contraction

                     The interval between the closing of the AV valves and the opening of the semilunar valves (aortic and pulmonary valves) is known as isovolumetric contraction. it is the beginig of systole. it is the first chamber systolic event. The myocardial muscle fibers have begun to shorten but have not developed enough pressure in the ventricles to overcome the aortic and pulmonary end-diastolic pressures and open the aortic and pulmonary valves. During this period of muscle fiber contraction, the ventricular volumes do not change.

3. Ventricular filling  

                 In this stage AV valve is opened and the blood that has accumulated in atria flow rapidly into ventricles. The ventricular volume increase rapidly. A third heart sound known as S3 is heared during this stage.

4. Isovolumetric relaxation

                  It is the beginning of diastole. The AV valve are closed at beginig. The atrium in diastole has been filling with blood on top of the closed AV valve, causing atrial pressure to rise gradually. The pressure in the ventricles continues to drop. Ventricular volume is at a minimum and is ready to be filled again with blood.


5 0
3 years ago
Help Please Biology!!!! ASAP
Dmitry [639]
I think the answer to this is structure C
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3 years ago
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Mashutka [201]

Answer: warm water.

Explanation:

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Compare at least two characteristics of mitochondria to prokaryotic cells and explain how this relates to the endosymbiotic theo
Gekata [30.6K]

The endosymbiotic theory stated that the mitochondria of eukaryotic cells are actually prokaryotic bacteria which were once engulfed by prehistoric eukaryotic cells as a result of evolution.

 

Therefore to answer this question, here are some characteristics: 
1 Both mitochondria and prokaryotic cells contain their own DNA.

2 Neither of the two have true nuclei, but they do have a space in which their DNA is enclosed. 
3 Mitochondria and prokaryotic cells have similar transcriptional machinery, which means that they have the same process of making RNA from DNA.

<span>4 Mitochondria contain their own genome, and the formation of their genome in most organisms is circular similar to prokaryotes.</span>

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3 years ago
How is matter transformed and conserved in the carbon cycle?
forsale [732]

Answer:carbon can be form naturally or artificially, both give energy by giving heat power.

Explanation:

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