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Fofino [41]
3 years ago
10

Pretty easy question (s) but I am not good at explaining things so I need help

Biology
1 answer:
luda_lava [24]3 years ago
5 0

I'm guessing the rocket scenario is the first one and the asteroid one is the last. That being said...

1) The fuel in the rocket provides it with the energy it needs to propel itself into space. The rocket throttles at the bottom, allow it to break free from the earth's gravity by pushing against the earth's greater mass.

2) If you are inside of the bus, in a fixed spot not moving, and the bus is moving. That means you are moving in the same direction as the bus. If it stops, you're still moving at the speed that it was once originally moving at. Obviously, since you weigh less than the bus you are going to fly forwards.

3) There is no gravity or friction in space, so items won't slow down no matter what. Even if an object such as a meteor is flung into space with the tiniest bit of force it will keep flying through space at a consistent speed, since there's nothing to slow it down... unless it hits something else.

4) Looking back at the previous answer, the asteroid is flying through space at a consistent speed (which is really fast). Suddenly it comes in close range to the moon which is bigger in size, and thus has a stronger gravitational pull, and pulls the asteroid into it's field.

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IgorLugansk [536]
The answer is B, DNA
4 0
4 years ago
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If you suspect your culture of bacteria has 23 x 106 cells per mL, what would you want the final dilution to be in order to end
olya-2409 [2.1K]

The dilution factor in order to end up with 96 colonies of bacteria is 0.23 × 10^6 .

For calculating the colony forming unit bacteria;

Colony-forming unit (CFU or cfu) is a measurement of live bacterial or fungi cells and is used to calculate the colony-forming unit of bacteria. CFU counts only viable cells as opposed to direct microscopic counts, which count all cells, both living and dead, using a hemocytometer. Colony-forming units per milliliter (CFU/mL) for liquids and colony-forming units per gram (CFU/g) for solids are used to indicate the results for convenience. The miles and Misra method can be used to compute CFU, which is helpful for assessing the microbiological load and severity of illness in blood and other samples.

∴ cfu/ml = (no. of colonies x dilution factor) / volume of culture plate

  23 x 10^6 cells per mL          =  96 × dilution factor

  Dilution factor  = 23 ×10^6 / 96

  Dilution factor  = 0.23 × 10^6

Therefore, the dilution factor in order to end up with 96 colonies of bacteria is 0.23 × 10^6 .

Learn more about bacteria here:

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6 0
2 years ago
A(n) _______ is a long period of time with little or no rain.
34kurt
Drought

that is the answer, I'm pretty sure
3 0
4 years ago
A 52-year-old woman has difficulty initiating voluntary movements. She can clearly state what she intends to do, describe exactl
Murljashka [212]

Answer:

Basal Ganglia

Explanation:

The Basal ganglia function is to regulate the voluntary movements or autonomic movement. This is done by receiving and transmission of impulses. Impulses are received for upcoming movement from the cerebral cortex and then process and adjust from where it is convey to the thalamus which then relays this information back to the cortex. The well defined movement instruction is finally sent to the skeletal muscles through the tracts of the pyramidal motor system. It also function in planning and modulation of movement, memory and eye movement.

There are five types of basal ganglia corpus striatum, claustrum, amygdala, substantia nigra and subthalamic sails which all function together.

7 0
3 years ago
Which mutation is harmful to the organism? A. a mutation allowing moths to camouflage better on blackened tree bark B. a mutatio
expeople1 [14]

The correct answer is D. Mutation causing uncontrolled cell division.

Mutation is termed as the alteration of sequence of nucleotides which is permanent to organisms or extrachromosomal DNA or virus.

During DNA replication mutation may result from different errors. For example, during meiosis we can say that the result of mutation can be harmful if mutation can change proteins which are being produced by a gene.

4 0
4 years ago
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