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slamgirl [31]
3 years ago
9

When did the ocean become an important area of study?

Biology
2 answers:
alex41 [277]3 years ago
8 0
The answer is D. about 200 years ago
Lubov Fominskaja [6]3 years ago
4 0
D. Around 200 years ago
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Need help what is the heart mostly made of
melomori [17]

Answer:

An organ is a group of tissues that work together to perform a specific function. In the case of your heart, this function is pumping blood throughout your body. Additionally, the heart is largely made up of a type of muscle tissue called cardiac muscle.

Explanation:

6 0
3 years ago
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Animal Length of Digestive System Diet Category Animal Mass Koala 305 cm Herbivore 10 kg Dog 135 cm Carnivore 11 kg Rabbit 272 c
lukranit [14]

Correct me if I'm wrong but I'm sure the answer is C because according to the data each herbivore has a larger digestive system

4 0
3 years ago
Do we use fusion in real life? Why or why not?
Juli2301 [7.4K]

Answer:

Yes..? Kind of.

Explanation:

Fusion is the combination of lighter nuclei into heavier nuclei. Yes, this is seen in nature; the sun. The sun is an example of fusion. However, on earth, no. To fuse 2 nuclei, you need extreme temperature and extreme pressure to fuse them together because the nuclei are the same charges. So, yes, but not really?

3 0
3 years ago
The D string on a violin has a frequency of 293 Hz when it is in tune. Ca<br> lculate the period
masya89 [10]

The period of the D string on the violin would be 0.0034 seconds.

<h3>What is the period of a wave?</h3>

The period of a generated wave is the time it takes for the wave's wavelength or successive crests or troughs to pass through a specific point. In other words, it is the time required to complete a full cycle of oscillation.

Mathematically, the period of a wave is given by:

Period = 1/f

where f is the frequency of the wave.

In the case of the D string of the violin in the illustrated problem, the frequency of the wave is given as 293 Hz when it is in tune. Thus, the period can be calculated as:

Period  = 1/293

            =  0.0034 seconds

Thus, the period of oscillation of wave generated by the D string on the violin with a frequency of 293 Hz is 0.0034 seconds.

More on the period of waves can be found here: brainly.com/question/14588679

#SPJ1

6 0
1 year ago
observations made of bacteria culture once a week over a month period is an example of what type of information
xz_007 [3.2K]

There are three different types of observation methods for the purpose of research. These three methods include the structured observation, participant observation, and the field experiments.

The structured observation is the method of data collection which is done without the direct involvement of the researcher with the participants. the participant observation is the type of observation which is used in the experiments involving qualitative research. The field experiment is the method of observation when the experiment rules are applied in the real world.

Among the given three types of observations, the structured observation is the type of observation that is used while observing the bacteria once a week for a period of a month.  

Hence, the answer is structured observation.

4 0
3 years ago
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