BIOLOGY HIGH SCHOOL

The most significant characteristic of sexual reproduction is _____.

Answers

Answer 1
Answer: hello, 
The most significant characteristic of sexual reproduction is the fact that the offspring's traits/ characteristics are not identical to the parents' traits. So, there is a variety of looks and traits passed down. 
Hope that this would help you! =)

Related Questions

Basaltic magma is the _______ type of magma. A. least explosive B. coolest C. hottest D. most explosive What are two of the processes that move tectonic plates over the surface of the Earth? A. Connection and convection B. Slab pull and crust conversion C. Ridge push and slab pull D. Plate movement and convection currents Where are the longest continuous mountain ranges on Earth located? A. Along the ocean floor B. In the Western portion of the United States C. Along the San Andreas fault D. In the Middle East
Diatoms have cell walls composed of _____.A. silicon dioxideB. carbon dioxideC. chitin
Most ocean-water usage is for _____. mining industry desalination power plants
One difference between algae and plants is that _____.
Snakes, dogs, and humans have a vertebral column. Snakes and dogs have tails, and humans have vestigial tailbones. Dogs and humans have limbs, but snakes do not. Most reptiles lay eggs, but a few give birth to live young. What do these structures suggest about the evolutionary pattern between the three organisms?

Which of the following has the longest lifedearf star
giant star
sun
supernova

Answers

the answer is supernova

A population of snakes that eat small rodents enters a new habitat. In the new habitat, there are many species of rodents, and their populations are high because there are few natural predators. What will most likely be the effect on the genetic variation of the snake population?

Answers

The Snake population would drastically grow and the rodents would population would get lower and might become endangered in that part of the habitat.

Final answer:

Introduction of snakes to a new habitat with varied rodent species will likely increase genetic variation in the snake population. The forces of natural selection, genetic drift, and possible mutation will drive this genetic diversity.

Explanation:

The introduction of the snake species to a new habitat with many types of rodents, which constitute their prey, will have an impact on the genetic variation of the snake population. This impact will largely be dictated by the forces of natural selection, genetic drift, and potentially mutation.

For instance, certain traits may favor the survival and reproduction of some snakes over others, depending on the exact nature of the predominant rodent species in the new habitat. This is known as directional selection. If the rodent types in the new environment favor the survival of snakes with certain traits, over time, these traits will become more common among the snake population.

Additionally, genetic drift, which refers to random fluctuations in allele frequencies, may also come into play, especially if the initial snake population in this new environment was relatively small. Over time, these factors, along with potential mutations, can contribute to increased genetic variation within the snake population.

Learn more about genetic variation here:

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As an infant, Maya had to have part of her brain removed due to a life-threatening medical problem. Eighteen years later she graduated from high school as the valedictorian of her class, was awarded a college scholarship, and showed no deficits as a result of the brain surgery. The fact that her brain was able to adapt and rewire itself following the operation is called ___________________.a) Synaptic Potentiation
b) Trans-Cerebral Restructuring
c) Post-Traumatic Cerebral Malleation
d) Neuroplasticity

Answers

Answer:

D

Explanation:

Brain can create new connection between neurons.

Final answer:

The ability of the brain to adapt and compensate for damage by forming new connections among remaining neurons is called Neuroplasticity. Despite having part of her brain removed as an infant, Maya exhibited this through her high school graduation, scholarship award, and absence of deficits from the surgery.

Explanation:

The ability of Maya's brain to adapt and rewire itself after a part of it was removed is known as Neuroplasticity. The term neuroplasticity refers to the brain's incredible capacity to reorganize itself, developing new connections among remaining neurons when part of it gets damaged or removed, thus minimizing the deficits of such loss.

In Maya's case, she demonstrated impressive neuroplasticity because, despite having part of her brain removed as an infant due to a life-threatening medical problem, she graduated from high school as the valedictorian of her class, was awarded a college scholarship, and showed no deficits as a result of the brain surgery. Hence, it's worthwhile to emphasize the power of neuroplasticity in our amazing brain.

Learn more about Neuroplasticity here:

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A neuron's sodium channels are malfunctioning and will no longer open. How would this prevent the cell from changing its polarity, and why?

Answers

The cell will not be able to depolarize due to unavailability of sodium ions.

What is the role of sodium gates in action potential?

  • Sodium voltage-gated channels can be either closed, open, or inactive.
  • Voltage-gated sodium channels are closed when at rest. Both an activation gate and an inactivation gate are present in voltage-gated sodium channels.
  • Although the inactivation gate is open, the activation gate is closed. This conformation is closed but capable of opening. Some of the activation gates open as a result of membrane depolarization brought on by a stimulus.
  • Both the activation and inactivation gates will be opened at this point. As sodium ions enter the cells, nearby activation gates will open.
  • A greater amount of sodium will enter the cells as a result, initiating an action potential.
  • Both gates open when certain depolarization thresholds are reached. Action potential increases to its maximum as sodium rushes into the cell.
  • The inactivation gate will gradually close and the permeability of the membrane to sodium ions will decrease. The channel is now in a state known as "closed but not capable of opening."

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Answer:

it could not depolarize because the cell cannot become more positively charged.

Explanation:

When sodium gates open, depolarization occurs, changes the charge of the ion from negative to positive. Therefore, if the sodium channels no longer open, the flow of sodium into the cell that changes the charge from - to + and depolarization would not occur.

To maintain homeostasis what must follow the chemical decomposition of food for energy production?A. muscle contractions
B. intake of water
C. removal of wastes
D. nervous impulses

Answers

C. removal of wastes 

When cells breakdown organic compounds into useful enzymes, and other biomolecules, these also result to the adverse effects of manufacturing -wastes. These harmful compounds are then collected by the cells to be drawn out of the body. 
To maintain homeostasis the chemical decomposition of food for energy production must be followed by muscle contractions - a. If this wasn't the case, there would be a surplus of energy which would mean that th ebody is not in homeostasis. When muscles are contracted, however, that surplus of energy gets readily used up and maintains the body in homeostasis. 

Is the orocess of selecting a few organisms with desired traits to serve as parents of the next generation

Answers

Artificial selection is the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.
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In response to a stimulus such as pain, a neuron sends a signal to the brain using __________.a. contraction and relaxation b. electrical signals and chemical neurotransmitters c. respiration and absorption d. myosin and actin
Which of the following is an example of an exothermic process?Melting Boiling Freezing Evaporating