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joja [24]
3 years ago
14

1. Which of the following is not a cell organelle?

Biology
1 answer:
ahrayia [7]3 years ago
5 0
1. B (cytoplasm)
2. D (chloroplast)
3. A (protein)
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Illustrate the relationship between a hypothesis and a prediction.<br><br> HELP PLEASE.
densk [106]
The answer to this question is 

A Hypothesis allows you to make a prediction about future experiments , But a prediction is more specific and Prediction are using forms like ("IF" and "Then") and Hypothesis is more like a regular sentence 

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3 0
3 years ago
How are populations ecosystems and communities alike
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<span>An ecosystem consists of a population of organisms and its physical environment, and a population is made up of many different communities of organisms. Every one of the creatures of similar species living  together that live in a particular biological system are known as a populace The people in the populace contend with one  another for sustenance, settling space, and mates.</span>
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** ALL MY POINTS**
Flura [38]

PART 1


1. The answer is low frequency electromagnetic waves are able to go around obstacles due to their larger wavelengths. This characteristic of lower frequency waves is due to their ability to diffract around obstacles such as buildings and hills. Therefore, they transmit over long distances unlike high frequency electromagnetic waves.

2. One disadvantage is interference. Electromagnetic waves of the same frequency transmitted at the same time will interfere with one other and therefore the signal will be lost or scrambled. Other electromagnetic waves such as microwaves are affected (interfered with) by weather elements.

3. Analogue signals are continuous signals with wave-like properties while digital signals are discrete signals or pulse (ons (1s) and offs (0s) that represent bits). Analogue signal is represented by a sine-wave while digital signal is represented by discrete squares waves.

4. Digital signals are less immune to eavesdropping unlike analogue signals. Analogue signal is also more prone to distortion unlike digital signal. Digital signals transmit more data than analogue signals. Digital signal draw less energy to transmit compared to analogue signal.

5. Broadcasting of TV is nowadays using digital signals due to the high number of available channels. Computers and the interne utilize digital signaling to transmit data. Controls systems such as radar system also use aspects of analogue waves. Sensors also utilize analogue waves especially transducers such as seismology equipment.


PART 2


1. One way is by sending radio waves to probes sent out in space to give them commands during exploration. Radio telescopes also pick up naturally-occurring radio waves from space and analyze the data to make conclusions about space and the astronomical objects.

2. Radio waves are used in communication by transmitting data over long distances. One example is its use TV transmission. Another is through military defense of airspace. The radio waves are used to detect enemy intrusion into restricted airspaces using radar.

3. It is common that signal from the environment will be in analogue signal format. The conversion to digital signals allows for the digital equipment in the telescope to interpret and analyze the data. Telescopes prefer digital equipment because they consume less power, handle more data, and are less prone to intrusion, and distortion, hence more secure to analogue equipment.



3 0
3 years ago
Read 2 more answers
Question 4 (Multiple Choice Worth 3 points)
sweet-ann [11.9K]

The creation of DNA fragments with ends that can join with other DNA is achieved by the use of restrictive enzyme analysis.

<h3>What are restriction enzymes?</h3>

They are enzymes utilized in genetic engineering or gene recombination technology to cut DNA at some specific points in other to have sticky ends.

The sticky ends DNAs are able to join with other DNAs using these ends. Another enzyme (Ligase) is utilized to join the DNA back once the desired DNA has been inculcated.

More on restriction enzymes can be found here: brainly.com/question/13944056

#SPJ1

8 0
2 years ago
Does anybody know the answers to these 2?
fgiga [73]

Ohhh I know this! Number 1 is saturated fats, Number 2 is unsaturated


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3 years ago
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