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PIT_PIT [208]
3 years ago
12

Bena thinks that dissolving more salt in water causes the mixture’s freezing temperature to change.

Biology
2 answers:
schepotkina [342]3 years ago
6 0

The right option is; an experimental investigation, because it allows for the control of variables.

The best type of scientific investigation for Bena to use to study this is an experimental investigation, because it allows for the control of variables.

Experimental investigation is a type of scientific investigation in which variables are controlled, modified, and measured in order to obtain facts to buttress or oppose a causal relationship. Experimental investigation includes all the parts of an experiment such as observations, scientific question, hypothesis, procedure, variables (independent and dependent) etc.

seropon [69]3 years ago
3 0
Comparative with a wide range of variables
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35 points.<br><br> Indentify bi-products of synthetic materials
Sindrei [870]

Answer:

polymers, monomers etc.

and carbon emmision ig

7 0
3 years ago
The process of __________ generates the oxygen that we breathe and the food that we eat. view available hint(s)for part a photos
Luden [163]

According to the research, the correct option is photosynthesis. The process of <u>photosynthesis</u> generates the oxygen that we breathe and the food that we eat.

<h3>What is photosynthesis?</h3>

It is the process of obtaining energy from plants, algae and certain bacteria to synthesize organic substances from other inorganic ones.

This metabolic process carried out by some cells of autotrophic organisms is essential for life since, starting from light and inorganic matter, it manages to synthesize organic matter and allows carbon dioxide (CO2) to be fixed from the atmosphere and oxygen to be released.

Therefore, we can conclude that according to the research, the correct option is photosynthesis. The process of <u>photosynthesis</u> generates the oxygen that we breathe and the food that we eat.

Learn more about photosynthesis here: brainly.com/question/13199624

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7 0
1 year ago
The paragraph describes mitochondria and chloroplasts. WHICH sentence in the paragraph provides the strongest evidence for the e
gregori [183]

The answer is; E

This shows that these organelles were once free-living organisms  with their own mechanisms for reproduction which they have retained even after years of symbiotic relationship with the higher organisms. During their duplication, they also replicate their own DNA. Their DNA does not have histones (as opposed to the DNA in the nucleus of their host eukaryotic cell) similar to that of simple organisms such as bacteria.


4 0
3 years ago
\6. List and BRIEFLY explain the methods of determining fingerprints? (PLZ HELP I HAVE A QUIZ TOMORROW)
spayn [35]

Answer:

There are number of methods for determining the fingerprints. However, most commonly used methods are:

  • Photography
  • Alternate Light Source
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Explanation:

Determination of fingerprints is an important method used in forensic science.  There are generally three types of fingerprints that are to be determined, namely latent fingerprints, patent fingerprints and plastic fingerprints. There are numerous methods used for the determination of fingerprints. However, most commonly used methods are:

<u>Photography:</u> Photography is direct or straightforward method that is used to determine the patent fingerprints. The image is photographed in a high resolution with the help of forensic measurement scale used as a reference.

<u>Alternate Light Source Method:</u> In this method the light source or LED is used of a particular wavelength in order to determine the latent fingerprints.

<u>Cyanoacrylate:</u> Cyanoacrylate processing is also known as super glue method or fuming method, which involves exposure of cyanoacrylate vapors to the non-porous surface from where the fingerprints are to be obtained.

5 0
3 years ago
What are marine sponges compossed of
OleMash [197]
Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells. Unlike other animals, they lack true tissues and organs, and have no body symmetry. The shapes of their bodies are adapted for maximal efficiency of water flow through the central cavity, where it deposits nutrients, and leaves through a hole called the osculum. Many sponges have internal skeletons of spongin and/or spicules of calcium carbonate or silicon dioxide. All sponges are sessile aquatic animals. Although there are freshwater species, the great majority are marine (salt water) species, ranging from tidal zones to depths exceeding 8,800 m (5.5 mi).
3 0
3 years ago
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