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4 years ago

Explain how scientific inferences can be made from scientific observations?

1 answer:

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Answer:Their inferences are based on evidence that they collect during their investigations. Readers learn that scientists gather and interpret evidence and draw conclusions based on this evidence. Some scientists investigate things that they cannot observe directly.

Explanation:

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A section of DNA is shown.

iren [92.7K]

The correct answer is D.

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2 years ago

Which sentence in the passage describes the benefits of sexual reproduction?

Dovator [93]

Answer:

Asexual

Explanation:

Either an animal can be either asexual, or just sexual. Like an iguana theyre asexal which means they can bw bkth female/male.

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3 years ago

Define the term, photosynthesis.

Nonamiya [84]

Answer:

The term photosynthesis is the process in which plants and other organisms capture sunlight and converts it into energy.

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3 years ago

Read 2 more answers

Complete the following vocabulary exercise related to the process of translation of mRNA to protein by the ribosome. Match the w

schepotkina [342]

The answers;

1. Termination. Out of the 64 codons, UAG, UAA, and UGA are the stop codons that terminate translation when encountered by the ribosome. These three do not code for any amino acid but rather cause the translation complex to dislocate.

2. Translation. In this process, the ribosome ‘reads’ the codon and brings in a t-RNA with an anticodon to the codon. This tRNA carries a specific amino acid (for that codon) and engages in the P-site of the ribosome. The amino acid is taken from the t-RNA and used to elongate the polypeptide chain being formed. Thereafter the empty t-RNA dislocates.

3. Aminoacyl-tRNA synthetase. When a tRNA brings in an amino acid to the initiation complex, it is dislocated when ‘empty’. Aminoacyl-tRNA synthetase then catalyzes the reattachment of another amino acid through a chemical reaction called esterification. The cognate tRNA then become an aminoacyl-tRNA.

4. tRNA . Every tRNA has an amino acid attached to it. The type of amino acid (out of the 22 amino acids) is determined by the anticodon on the tRNA. There are many codons that are amino acids meaning that there are redundant codons that specify for the same amino acid.

5. Initiation. Initiation begins by the formation of an initiation complex. This complex is comprosed by the two subunits of the ribosome, and the mRNA. The complex becomes compelete when a Met-tRNA (a tRNA with a methionine amino acid) engages the P-site and then translation begins.

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3 years ago

Help me Please :)

Jobisdone [24]

1. Where does most of the mass that makes up living things (the mighty sequoia tree for example) come from?

A.Oxygen

B.Soil

C.Carbon Dioxide

 D.Water 

2. Which process is responsible for moving carbon from the atmosphere to the producers in an ecosystem?

A. PHOTOSYNTHESIS: where the carbon dioxide (CO2) is turned into glucose (C6H12O6) 

B. CELLULAR RESPIRATION: where the glucose (C6H12O6) is turned into carbon dioxide (CO2)

C. DEFECATION: When an animal poops, carbon goes back into the atmosphere

D. EATING: When animals eat, they take in the carbon from the atmosphere

3. Which process is responsible for moving carbon from a producer/herbivore/carnivore/decomposer back into the atmosphere?

A. PHOTOSYNTHESIS: where the carbon dioxide (CO2) is turned into glucose (C6H12O6)

B. CELLULAR RESPIRATION: where the glucose (C6H12O6) is turned into carbon dioxide (CO2)

 C. DEFECATION: When an animal poops, carbon goes back into the soil 

D. EATING: When animals eat, they take in the carbon from the atmosphere

4. Which of the following are examples of organic carbon?

A. Lipids

B. Carbon Dioxide

 C. Glucose 

D. Both A and C

E. All of the above

5. Which of the following best describes ALL the possible places carbon can go once it is in an acacia tree in the savanna?

**Read carefully, there are correct answers and then there is the BEST answer**

A. The carbon will either go back into the atmosphere by cellular respiration or into an herbivore when they eat the leaves of the acacia tree.

B. The carbon could go into a lion or be used to become part of the acacia tree (biosynthesis)

 C. The carbon would move to the soil where the decomposers would put it back into the atmosphere. 

D. The carbon could go into the atmosphere through cellular respiration, it could become part of the acacia tree (biosynthesis), it could die and move to the soil, or an herbivore could eat the leaves of the acacia tree

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4 years ago