BIOLOGY HIGH SCHOOL

A researcher recorded that a chemical reaction required 2.90 gal water and raised the temperature of the reaction vessel by 57 F. Convert the researcher's volume measurement to the SL units of literThere are 3.875 L in 1 gallon


A. 11.0 L

B. 8.9 L

C. 9.11 L

D. 11 L

Answers

Answer 1
Answer:

A. 11.0 L is the researcher's volume measurement to the SL units of liter

Explanation:

Given that a researcher recorded that the chemical reaction has water = 2.90 gallon.

We have to convert the researcher's volume into the SL units of liter.

So, we know that 1 gallon = 3.875 liters.

Then we have to convert 2.90 gallons of water in to liters.

Then  , volume in L =(volume\ in \ gal) *  (3.875 L/1 gal)                                   = (2.90) * (3.875L/1 gal)                                  

= 11.0L

Then the required volume in L= 11.0L

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By using sound waves, _______ signals allow oceanographers to determine ocean depth. A. radar B. phone C. sonar D. radio

Answers

The appropriate answer is c. sonar. Oceanographers use sonar to determine the ocean depth. A sonar signal is sent from the ship. Oceanographers record the time taken for the signal to leave the ship and for it to return. Knowing the speed of sound in water, they are able to calculate the depth of the water. This method is also used to generate bathymetric images of the ocean floor.

Using sound waves, _______ signals allow oceanographers to determine ocean depth.

   C . sonar


Hope I was helpful (:

RNA is made using the genetic instructions from DNA. What is made from the instructions in RNA?(Points : 1)
DNA

RNA

proteins

new cells



Question 2.2. Which sentence correctly describes transcription? (Points : 1)
RNA is the direct result of DNA transcription.

Proteins are the direct result of RNA transcription.

Protein transcription takes place in the nucleus of a cell.

RNA transcription takes place in the cytoplasm of a cell.



Question 3.3. What is the DNA backbone made of? (Points : 1)
a nitrogenous base and a sugar molecule

nitrogenous bases, sugar, and phosphates

sugar and phosphates

a polymer of nitrogenous bases



Question 4.4. If a segment of one strand of a DNA molecule has 500 adenine bases, how many thymine bases does the other strand have? (Points : 1)
500

250

0

You can't tell from that data.

Answers

1. Proteins

After RNA is formed, it is transported out of the nucleus and goes to the cytoplasm. From the cytoplasm, it goes into the ribosomes, where protein synthesis occurs. Together with transfer RNA (tRNA), mRNA will direct protein synthesis.


2. RNA is the direct result of DNA transcription.


Transcription is a process where DNA is transcribed into messenger RNA (mRNA). This carries all the information that will be needed to synthesize proteins.


3. Sugar and phosphates

The backbone of DNA, is made of sugar and phosphate. They form the structural framework of nucleic acids. They are arranged alternately, sugar-phosphate group-sugar and so on. The backbone refers to the sides of the DNA "ladder."


4. 500

In base pairing, guanine and cytosine pair up and adenine pairs up with thymine. Fore every adenine, there will be a thymine. If there are 500 adenine bases, there will be one for each one. So the answer is 500.

the answer of the 1st question is Proteins. (According to DNA replication and RNA process and metabolism)the answer of the 2nd question is RNA transcription takes place in the cytoplasm of a cell.the answer of the 3rd question is nitrogenous bases, sugar, and phosphates, that is proved by the sequence of each strand of DNA.the answer of the 4th question is 500 thymines, that is because each adenine bases changes to Thymine, so during DNA replication, so the number of adenine bases = number of thymines.

Cindy wants to send a card and a framed picture in a package. Which is the best estimate for the mass of this package?a. 450 grams
b. 450 kilograms
c. 4 grams
d. 40 kilograms

Answers

The correct answer is a. 450 grams

A card and a framed picture cannot cost 450 kilograms or even 40 kilograms. A card itself might weight 4 grams, but combined with a frame picture it is definitely approximately 450 grams of a package.

Echolocation is an adaptation bats use to _______.a.
hunt insects in flight
b.
locate flowering plants
c.
find warm places for hibernation
d.
all of the above

Answers

Echolocation is a mechanism that bats use to navigate in the dark when hunting prey. Bats use of sound waves and echoes to determine where objects are in space. hence the answer to this problem should be a. hunt insects in flight

Echolocation is an adaptation bats use to hunt insects in flight. The correct option is a.

Echolocation is a sensory adaptation used by bats to navigate and locate their prey, particularly insects, in the dark.

Bats emit high-frequency soundwaves and listen for the echoes that bounce back from objects in their environment.

By interpreting the echoes, bats can determine the location, distance, and movement of objects, allowing them to effectively huntinsects while in flight.

While bats may also use echolocation for other purposes, such as navigation or detecting obstacles, the primary function is to facilitate hunting.

Therefore, option a, "hunt insects in flight," is the most accurate choice.

For more details regarding echolocation, visit:

brainly.com/question/31639589

#SPJ6

6. The _______ is the temperature to which air must be cooled at constant pressure to reach saturation. A. latent heat
B. dew point
C. saturation heat
D. adiabatic lapse

Answers

Dew point is the temperature to which air must be cooled be cooled at constant pressure to reach saturation.

The _______ is the temperature to which air must be cooled at constant pressure to reach saturation. The answer is, B. Dew point.

Protists are a group of organisms that are characterized as eukaryotes (they have cells with nuclei) that are neither plants nor animals nor fungi. They are very diverse, and there are many hypotheses about their classification. The cladogram for protists is constantly changing and, sometimes, there are opposite hypotheses that both have data to support them. What is the implication of a changing hypothesis? It is acceptable because data are still being collected. It is acceptable because everything in science should always change. It is not acceptable because the correct answer needs to be found. It is not acceptable because science never changes.

Answers

It is acceptable because data are still being collected.

Protists obtain food in 3 ways. They produce their own organic molecules, ingest, and absorb.  Ingestive protists ingest food, or engulf bacteria. These protists extend their cell wall and cell membrane forming a food vacuole around the food item. Inside the food vacuole, enzymes digest the food. Absorptive protists on the other hand, absorb food molecules  across their cell membrane which takes place through diffusion. Absorptive protists play a key role in decomposition. They are considered as important decomposers. Major producers  like photosynthetic protists  use light energy to manufacture  their own food. 

The hypothesis is constantly changed because data are still being collected, and due to this, hypotheses are accepted.

Further Explanation:

Protists are considered as first eukaryotes to be identified. They are different from prokaryotes because they have a well-defined cytoskeleton. They consist of different organelles and nuclear envelope. Protists have a varied range of cell surfaces. They can easily stand in an unfavorable environment due to the presence of outer covering. They have flagella for the locomotion. They can either be autotroph and heterotrophs. This is because they ingest food particles by pulling them in the intracellular vesicles referred to as phagosomes or vacuoles. They can produce by means of asexual and also by the sexual method. Protista that produces sexually undergoes meiosis, which is a reductional division resulting in the formation of haploid cells.The progeny that are produced by the union of two haploid cells allowed the formation of new allelic combinations by genetic recombination.  

Cladistics is a process of classifying organisms depends upon their shared traits. The cladogram for Protista is continuously altered, and, at times, there are contradictory theories that together have data to support the hypothesis. It is suitable because facts are still being collected.

Learn more:

1. Learn more about the mitosis brainly.com/question/6462270

2. Learn more about the menstrual cycle brainly.com/question/723944

3. Learn more about the meiosis brainly.com/question/94813

Answer Details:

Grade: High School

Subject: Health

Chapter: Protists

Keywords:

Protists, phagosomes, vacuole, sexual method, asexual, collected, allelic combination, genetic recombination, progeny, hypothesis, cladogram.
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