BIOLOGY HIGH SCHOOL

Which statement describes natural selection

Answers

Answer 1
Answer: Where is the statement?
Answer 2
Answer:

Answer: You didn't put any statements lol

Explanation:

But basically natural selection is when organisms with the most favorable traits will survive and reproduce. (ex. there are 2 strains of bacteria - one that resists antibiotics and one that doesn't. The one that resists the antibiotics will strive and reproduce because that will be the more favorable trait that will be able to be inherited by future generations.)

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The planting of trees I'd detrimental to soil because it drains that soil of its nutrients true or false

The mismatch of a DNA base pair during duplication can result in a mutation.True
False

Answers

The answer is true. Mutation is the result of the mismatch of a base pair during the duplication. Mutations are neither the results from errors during the replication of DNA or other types of damage to DNA. In simpler words, DNA errs to copy accurately.
The statemnt is true. Mismach is base pairs is one of the common types of mutations, that occur. This may be due to substitution caused by purine by purine, and pyrimidine by pyrimidine. The other type is transversion, in which, purne is replaced by pyrimidine, and pyrimidine by purine.

Small molecules like water, carbon dioxide, and nitrogen enter plant cells through the cell membrane. Plant cells also have specialized organelles called __________ that contain pigments that capture sunlight to use to make food.

Answers

The answer Chloroplasts; and Chloroplast helps them do photosynthesis and cellular respiration. It is also what makes plants green. I hope that helps

The ratio between the force of sliding friction and the normal force of an object is called _____.-rolling friction
-the drag
-the coefficient of friction
-the starting friction

Answers

Answer;

The coefficient of friction

Explanation;

  • Friction is a force that opposes motion. Normal force on the other hand is a force that presses two surfaces together and is directed perpendicular to the contact surface; on a level surface. The magnitude of normal force is equal to the force of the object's weight but in the opposite direction.
  • The coefficient of friction shows the relationship between the force of friction between tow objects and the normal force between those objects.
The ratio between the force of sliding friction and the normal force of an object is called the coefficient of friction.


Hope this helped :)

What is homeostasis?

Answers

The ability for an organism to be able to regulate its own body temperature from the outside world.
Homeostasis is the tendency of a living organism to maintain its body temperature according to conditions or environment.

explain the importance of the cytological markers (the translocated segment and the chromosome knob) in the creighton and mcclintock's experiment.

Answers

Answer:

Explanation: Cytological markers such as the translocated segment and the chromosome knob play a crucial role in various biological research and applied sciences. These markers have proven to be invaluable tools for understanding genetic diversity, evolution, and gene mapping in organisms. The translocated segment, which is an exchange of genetic material between nonhomologous chromosomes, can provide insights into evolutionary relationships between species. By studying translocations, scientists can determine how different species are related and how genetic material has been exchanged or rearranged during evolution. On the other hand, the chromosome knob is a distinguishing structure found on certain chromosomes that serves as a reliable cytological marker for gene mapping and breeding programs. It facilitates the identification of specific genes associated with particular traits or diseases through cytogenetic techniques. Moreover, these cytological markers enable researchers to develop breeding strategies that aim at improving crops' yield, disease resistance, or other desirable qualities by precisely transferring particular chromosomal segments or genes identified by the presence of knobs and translocations. Hence, understanding the significance of cytological markers is vital for both basic scientific discoveries and practical applications in agriculture and medicine.

Some flowers have a complete set of male and female parts for fertilization. True or False

Answers

Answer:

The given statement is true.

The flowers which contain both male and female reproductive structures are called bisexual flowers.

Stamen refers to the male reproductive part of the flower. It consisted of anther and filament.

Pistil refers to the female reproductive part of a flower. It consisted of stigma, style, and ovary.

So, bisexual flowers are those which contain both stamen and pistil.

For example, Hibiscus, Sunflower, Lily, Rose, Tulip, Daffodil, Mustard, Brinjal, Tomato, et cetera.
The answer is True. Most flowers are capable of reproducing with any other flower of it's species.
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