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stiks02 [169]
4 years ago
6

Sally's teacher asked her to classify the organisms in a sample of pond water. One KEY feature can be seen that helped Sally rul

e out the kingdom Eubacteria. That was the presence of A) cilia. B) cell wall. C) organelles. D) chlorophyll.
Biology
2 answers:
bekas [8.4K]4 years ago
4 0
<span>Eubacteria are prokaryotic, which means that they do not have defined membrane limited nuclei. This means that Eubacteria do not have a nucleus or cell organelles. Thus the answer is C.</span>
andrey2020 [161]4 years ago
4 0

Answer:

c

Explanation:

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Choose medications design to experiment test impact on the heart rate
inna [77]

<u>Answer:</u>

Medications design to experiment test impact on the heart rate are blood thinners, beta-blockers, calcium channel blockers and potassium channel blockers.

<u>Explanation:</u>

In this, we are talking about medicine design which impacts the heart rate. The problem of irregular heart rate is called atrial fibrillation may increase the risk of stroke and heart disease. For reducing the chances of stroke, doctors prescribe blood thinners. If your Heart rhythm is off but the rate isn't too fast then it wouldn't be a problem. But when the heart rate is very faster that is 100 beats per minute for very long then the bottom pumping chamber that is the ventricles can become very weak which leads cardiomyopathy which further leads to heart disease. There are many medications used to the slow erasing heart these are:

1. Beta-blockers.

2. Calcium channel blockers.

3. Potassium channel blockers.

If you aren't bothered with the symptoms then your doctor will straightly start with correcting your heart's rhythm but if you are struggling with symptoms then your doctor may recommend you an anti-arrhythmic medication to steady your heartbeat and help ease those symptoms.

Amiodarone is both a sodium channel blocker and potassium channel blocker. It is one of the most effective anti-arrhythmic drug available.

7 0
3 years ago
At which hotspot would you view Polaris at an altitude of 45°?
Mice21 [21]

Answer:

Elmira

Explanation:

cause the altitude of Polaris is 42 and alt of Polaris equals latitude of observer, and only Elmira is near the 42 degree latitude line.

7 0
3 years ago
Which type of cell does the strainer best model?
hammer [34]

Answer:

a

Explanation:

6 0
3 years ago
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Explain the water cycle using the terms condensation, evaporation, and precipitation.
RideAnS [48]

Answer:

The water cycle is also known as the hydrological cycle. It shows how water is circulated continuously within the atmosphere of the Earth.

Evaporation is the process where water, when heated, goes from the liquid to gaseous state in the form of vapor. This is how water gets from the geosphere to the atmosphere. As the vapor rises, the air around it gets cooler, and this is where condensation occurs. Condensation is the process where vapour will turn into its liquid state. As more vapour condense they start to form clouds. When the cloud gets dense enough, the water falls back to Earth through precipitation.

7 0
3 years ago
Why are accessory pigments like carotene &amp; xanthophyll necessary to have in
Kruka [31]

Answer:

The accessory pigments like carotene & xanthophyll necessary to have in green plants is chlorophyll

Explanation:

Various pigments present in the plants helps in the absorption of the light, at photosynthesis. They acts as helpers to the plants. Chlorophyll helps in the green plants for absorption of light through which they can prepare their own food. The electrons in the molecular level of chemical structure of the pigment moves at certain energy levels. The chlorophyll is again divided into different types i.e. chlorophyll a,b,c,d. In case of plants chlorophyll a and chlorophyll b are the most important.

8 0
4 years ago
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