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eimsori [14]
3 years ago
13

PLEASE HELP QUICK!!! 20 POINTS AND I WILL MARK BRAINLIEST!! Investigation techniques

Biology
1 answer:
anzhelika [568]3 years ago
3 0

Answer:

Observation

  • You watch to see the passengers in cars that pass...

Classification

  • To investigate different types of matter, students are asked to seperate items on the table...
  • A titration is used to determine the pH...

Experimentation

  • You mix two aqueous solutions together...
  • A wooden splint is placed above a test tube...
  • To determine the activity series, several metals and solutions containing those metals are used...

Explanation:

I abreviated the text in each box, but you should get the gist of which belongs in which categories. Let me know if you need further explanation on what warrants classification in the observation, classification, and experimentation categories.

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How does survival of the fittest help keep the ecosystem balanced
xz_007 [3.2K]

The former means those most fit, those with the best set of skills and features for the given environment, will live to pass on the said features in the offspring (with ants, for example, being incredibly fit and adaptable creatures). The latter suggests there is an objective way to measure the "meaningfulness" of each species and having only those most meaningful survive. But this differs from species to species - for a house cat, the great white shark is utterly meaningless.

 Also, the meaningful animal has no actual advantage over another to help him survive, whereas fittness is exactly that - it is the ability to survive, ability to pass on your genes.

 While I understand it may seem so in the case of domestic animals that the most meaningful to the human are those allowed to reproduce, it is actually the same law: those most adapted for human purpose (which, of course, in the given case means the most meaningful) ARE the fittest here in the human-controlled environment.

3 0
3 years ago
Transcription: Transcribe the DNA to make an mRNA molecule ATGA ACCATTCAGTATG Gb| Complimentary DNA mRNA Molecule​
Leya [2.2K]

Answer:

UACUUGGUAAGUCAUAC

Explanation: this is the rna molecule transcription

for reference in DNA A matches with T  and G matches with C but in rna transcription you match A with U whenever theres an a , but if theres a T involved then thats when you add an A in the rna      in conclution           RNA :A-U G-C ( rare T-A)      DNA :A-T and C-G

7 0
3 years ago
A piece of granite rock have a density of 2.57g/cm^3 and a mass of 0.304 kg. What is the volume ?
givi [52]

Answer:

1.183×10∧-4 m³

Explanation:

ρ=m/V

Here, m=0.304kg

ρ=2.57g/cm^3 =2570kg/m^3 [1g/cm^3=1000kg/m^3]

V=1.183×10∧-4 m³

Hope, this helps you.

7 0
3 years ago
What part of a neuron receives signals and sends a message to the cell body? what part of a neuron receives signals and sends a
Lerok [7]
Dendrite.

A dendrite is a projection from a neuron that propagates to the cell body the electrochemical stimulation it receives from other neurons. 
Dendrites were first described by Wilhelm His, in 1889,<span> as the "protoplasmic processes" that come from a neuron. Later, </span>Otto Friedrich Karl Deiters distinguished the axon from the dendrites as another different structure.
8 0
3 years ago
What is the role of the accessory organs in digestion?
Taya2010 [7]

Answer:

The salivary glands, liver and gall bladder, and the pancreas aid the processes of ingestion, digestion, and absorption. These accessory organs of digestion play key roles in the digestive process. <u>Each of these organs either secretes or stores substances that pass through ducts into the alimentary canal.</u>

<u />

<u>:) Hope this helped</u>

7 0
3 years ago
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