BIOLOGY HIGH SCHOOL

What determines whether a solution is acidic or basic?

Answers

Answer 1
Answer: The pH(potential hydrogen ion) level. Higher means more basic and lower means more acidic. 7 is neutral

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Which term describes a behavior of an organism that allows it to survive in its particular environment?a. evolution
b. adaptation
c. organism
d. ecosystem

Answers

    The term that describes a behavior of an organism that allows it to survive in it's particular environment is adaptation. Hope this helped!

Translation of mRNA into segments of tRNA allows which organic molecules to combine to form proteins at the ribosome?

Answers

Answer:

The correct answer would be amino acids.

Translation is the process of formation of polypeptide chain in which nucleotide sequence of DNA is decoded to amino acid sequence via mRNA.

It takes place at ribosomal site in a cell where mRNA is placed between small and large sub-units of the ribosome.

tRNA decodes the mRNA codon sequence with the help of anti-codon site present in it.

Positive interaction between codon and anti-codon site leads to the addition of specific amino acids to the growing polypeptide chain from charged tRNA.
It allows amino acids to form proteins

Fungi or either ___ or ____

Answers

Answer:

Fungi are either saprophytes or parasites.

Fungi are parasites on the living organism. They live in the body of the host cell and gets nutrition from the host body. The Fungus Septobasidium is parasitic in nature and feeds on the tree. They form the mycelium that feeds on the bark of the trees.

Some of the fungus show saprophytic behavior as they feed on the dead and decaying matter of prey and they release the digestive enzymes outside the body and absorb the digested food(nutrients) inside their body.

What is the primary function of chloroplasts?

Answers

The primary function of the chloroplasts in a plant is to convert lightfrom the sun into glucose and energy in a process that is known asphotosynthesis. This energy is then used by the plant cells forincredibly important functions such as growth and repair, so the chloroplasts are amongst the most necessary parts of any plant.

What discovery led Darwin to develop his theories on adaptation?a.
The Galapagos islands contain a range of habitats.
b.
The Galapagos islands originate from volcanoes.
c.
The birds Darwin found in the Galapagos were different types of finches, not separate types of birds.
d.
Many of the organisms in the Galapagos lived in hostile environments.

Answers

The answer is C. During one of his explorations, naturalistCharles Darwin reached the Islands of the Galapagos. He observed that there arethe same species of animals on different islands, but have noticeabledifferences. He found in Galapagos, that there were finches, a type of bird,with different type of beaks. Birds used their beaks to acquire food. It ledhim to discover that species developed over time to fit their way of life insurviving and getting their food.

The correct answer form all of the given options is (c) The birds Darwin found in the Galapagos were different types of finches, not separate types of birds.

Further explanation:

Adaptation theory given by Charles Darwin is also called survival of the fittest theory or just survival theory, it explains the ability of the organism to adapt to the changes of the environment over generations and give rise to new form of species.

Darwin named this theory natural selection stated that;

  • Adaptation is the survival process through which species become suited to the surrounding environmental changes. There is process called genetic variation in which species with best suited genes or characteristics has better chances to survive and reproduce.
  • Over a period of several generations the genetic make-up of the surviving species will slowly change and become completely adapted to the need of the physical environment.
  • Some of the most important distinguished feature Darwin noticed regarding different species was found on nearby island of Galapagos which had similar but not identicalspecies of finches living on them, each finches species had distinguishable feature but they are adeptly suited to their respected environment. Some of them had large and tough beak whereas others had sharp and thin beak. Finally he noticed that finches found on the Galapagos island were similar to mainland Ecuador but different form elsewhere.
  • Darwin furthermore noticed the turtles from two different islands one turtle population had short legs and they ate food that was low on the groundand the other one had long legs because the food source was much higher up. So the theory was that when the turtle migrated to another island in the search of food, there the food source was much higher up so, the turtle with long legs survived and evolved.

There is internal adaptation as well which cannot be seen from outside the body for example vertebrates adapting to regulate their body temperature.

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Answer Details:

Grade: High school

Subjest: Biology

Chapter: Darwin’s theory of evolution  

Keywords  

Finches, adaptation, species, natural selection, characteristics, genes, genetic variation, Galapagos.

which of the following types of mutations would be advantageous for the survival of a cancer cell? a) An inactivating mutation in an oncogene Advantageous: b) An inactivating mutation in a tumor suppressor gene c) An inactivating mutation in a gene that promotes apoptosis d) Methylation of the promoter of a tumor suppressor gene

Answers

Answer choice C is correct. Apoptosis is a programmed death within a cell. What allows cancer cells to rapidly spread so fast is the face that they do not undergo apoptosis, so a mutation that prevents apoptosis will allow the cancer cells to thrive and multiply.
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State two ways living and nonliving things differ
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