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Leni [432]
3 years ago
7

T or f sound waves can travel across outer space?

Biology
1 answer:
elena-14-01-66 [18.8K]3 years ago
4 0

Answer:

False

Explanation:

Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. ... Radio is a form of electromagnetic radiation just like light and can therefore travel through the vacuum of space just fine.

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Three groups of students in Mr. Walker's science class were assigned the task of designing an experiment to test
Kipish [7]
D) it has to depend on the type of crypt
3 0
3 years ago
What has uekaryotik cells liver, virus, oak, lactobacillus?
padilas [110]
Eukaryotic cells have chromosomes, a membrane-bound nucleus, and membrane-bound organelles, practically any living thing. Eukaryotic cells are also considered animal cells. 

It could be both liver and oak. 
It could also just be <u>liver</u> if it specifies eukaryotic animal cells. 

4 0
3 years ago
A study was conducted in men aged 40-70 in order to determine whether exercising for 2 or more hours per week decreases the like
Blizzard [7]

Answer: alternative A.

Explanation: In this case, we will consider people that already have had a heart attack. In this specific group of 1,000 people, 236 exercised regularly and had gone through this situation.

We can infer that 23.6% of people who exercised regularly have experienced that by dividing 236/1,000= 0.236= 23.6%.

If 236 people exercised, 1,000-236=764 didn't exercise regularly prior to their heart attacks, so 74.6% were considered to be sedentary.

If there's 0.236 chance out of 1 to exercise and still have a heart attack compared to 0.764 out of 1 to be sedentary and have the same experience, we can divide both ratios to compare them, so 0.236/0.764= 0.3089.

Alternative A claims that people who exercise have around 0.5 chance of having heart attacks compared to people who don't. Since our ratio resulted in 0.3089, we consider this number the closest to 0.5. Alternative <u>B is absurd because in order for people who exercise to have 2x the risk compared to people who don't, the number of people who exercised and went through that must be 2x bigger than people who didn't</u>. Alternative <u>C doesn't apply as well, because we already verified that the chance people who exercise have a heart attack equal to 23,6%. </u>

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5 0
3 years ago
Which of these is a disadvantage of multicellular organisms?
Alexxandr [17]

Multi cellular organisms are composed of many cells whereas unicellular organisms are composed of single cell. Multicellularity is indeed a progressive attribute of evolution where cells form tissue which forms organ and then organ system and finally an organism. Both multi cellular and unicellular organisms has advantages and disadvantages of their own. One of the main disadvantage of multi cellular organisms is that due to such a complex composition and functioning they require a large amount of energy for their maintenance and survival. Different organs and system require a huge amount of energy when it comes to comparison with unicellular organisms. A large amount of energy is also wasted in all these life processes. Though multi cellular organisms can survive in a variety of environmental conditions but then also their survival is difficult than any unicellular organism.

4 0
3 years ago
Read 2 more answers
Consider this animal cell.<br> Which organelles are labeled G?
Paraphin [41]

Answer:

In the animal cell the organelles that is  labelled G is mitochondria.

Explanation:

Mitochondria are the membrane bound organelles with inner membranes folded inside which can form finger like structures called cristae. There numbers are more in the cell. They are basically responsible for the production of the energy, hence called as the power house of the cell. They also perform the cellular respiration, which means it takes the nutrients from the cell breaks it and makes energy from it. This energy is used by the cell to carry out various life processes.

7 0
3 years ago
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