BIOLOGY MIDDLE SCHOOL

Without sodium potassium pumps, what could happen to cells

Answers

Answer 1
Answer:

Answers. Sodium/potassium pumps (Na/K ATPase) pump 3 Na out of the cell and 2 K into the cell. Without that, there would be relatively more ions in the cell. Therefore, the cell would swell up from osmosis. However, there is a basal efflux of K, (resting membrane potential), that would eventually equilibrate with the extracellular concentration.


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HIGH SCHOOL

Individuals can take a course of antibiotics to help their immune system fight bacterial diseases. Which of the following best explains why these antibiotics may lose their effectiveness against certain bacteria? Antibiotics have become diluted and weak because of a limited supply.

Resistant bacteria are polyploidy and can resist the antibiotic, a trait that is passed on to their offspring.

Some bacteria have randomly mutated to resist the antibiotic, and this resistance is inherited.

Bacteria have purposefully directed their immune system to resist the effect of the antibiotic.

Answers

Answer:

The correct answer is "Some bacteria have randomly mutated to resist the antibiotic, and this resistance is inherited".

Explanation:

Antibiotic resistance is a serious health issue that occurs when bacteria gains resistance against certain antibiotics, which reduces or eliminates the effectiveness of the treatments. The best explanation for this phenomenon is that some bacteria have randomly mutated to resist the antibiotic, and this resistance is inherited. This happens particularly when people do not take the full treatment or take treatment without diagnosis. In consequence, the populations of bacteria are not fully eliminated, increasing the probability of survival for bacteria that randomly mutates towards resisting the treatment.

HIGH SCHOOL

In a population of short, ground-dwelling animals, some offspring were produced that were approximately 1 cm taller than others in the population. This group was able to reach slightly higher vegetation than the rest of the population. When these animals grew up, they were able to produce more offspring than other animals in the population. This pattern, where the tallest animals were more likely to survive and reproduce, continued over several generations. Eventually, after many generations, all members of the population were at least 20 cm taller than animals of the original population had been. What does this illustrate?

Answers

Answer:

It illustrates the theory survival of fittest.

Explanation:

Darwin in his theory explained this in detail where He said animals who are better equipped to conditions will survive or as he described the that generation will preserve itself for future. To quote from his book he said "Survival of the form that will leave the most copies of itself in successive generations"

Answer:

A: Slight differences between parents and offspring can eventually result in future generations that are very different from their ancestors.

Explanation:

It might be a diffrent letter on some so check

MIDDLE SCHOOL

What is the primary role of the respiratory system in living organisms

Answers

The answer to what is the primary role of the respiratory system in living organisms is B. To obtain oxygen
The primary purpose of the respiratory system in living organism is to obtain oxygen (B) so to sustain life. Respiration is an essential function of many living organisms and the respiratory system plays a vital role in this process.
COLLEGE

Biologists are fairly certain that oxygen was built up in the atmosphere by the development of photosynthesis. The production of oxygen and, therefore, the beginning of extensive aerobic life was made possible by the evolution of: _____________________

Answers

Answer:

Evolution of cyanobacteria

Explanation:

Early earth was reducing therefore there was no oxygen on early earth. Oxygen first came on the earth due to the evolution of cyanobacteria on earth. Cyanobacteria were the first aerobic bacteria on earth.

This bacteria was able to conduct photosynthesis and split water into Hydrogen and oxygen. This oxygen is released in the atmosphere and created the aerobic environment on the earth.  

Cyanobacteria used sunlight energy to split water and by this, they are able to make their own food in the form of carbohydrates. Therefore the correct answer is cyanobacteria.

Answer: The beginning of aerobic life was possible by the evolution of cyanobacteria.

Explanation:

In the early life history, it was said that oxygen was not available for life then not until the evolution of cyanobacteria.

Photosynthetic cyanobacteria were thought to have been the first specie to photosynthesise thereby leading to evolution of multicellular organisms. When cyanobacteria photosynthesize, oxygen is generated and release into the atmosphere which lead to proliferation of multicellular organisms and animal life on it. The evolution of cyanobacteria that lead to release of oxygen was said to have started around 2.3 billion years ago. Cyanobacteria use sunlight to divide water into oxygen and hydrogen and thereby producing there own food using chlorophyll. The oxygen is the byproduct that Is released in the atmosphere

HIGH SCHOOL

Which lunar phase comes directly before the full Moon phase?

Answers

Waxing Gibbous, I believe. 
The lunar phase known as waxing gibbous comes directly before the Full Moon phase.
HIGH SCHOOL

What can be said about the diversity of life in the splash zone compared to that of the submerged zone? There is less biodiversity in the splash zone because there is varying salinity.
There is more diversity in the splash zone because there are fewer predators.
There is more biodiversity in the splash zone because there are more nutrients available.
There is less biodiversity in the splash zone because there is a lower average temperature.

Answers

Answer: There is more diversity in the splash zone because there are fewer predators.

There is more biodiversity in the splash zone because there are more nutrients available.

Splash zone is also known as intertidal zone which is present in the coastal region. It remains exposed to air under the effect of low tides and remains submerged due to high tides. Submerged zone is a zone of marine habitat that always remains covered with water. This zone remains near the bottom bed of the aquatic body.

There is more diversity in the splash zone because there are fewer predators: The splash zone exhibit shallow water which larger fish and other predators find not suitable for catching their prey, therefore, this facilitates the growth of organism living in splash zone.

There is more biodiversity in the splash zone because there are more nutrients available: The splash zone exhibit shallow water which facilitates the sunlight, carbon dioxide from atmosphere to efficiently penetrate the water cover and reach to the plants. Hence, support more growth of vegetation as compared to submerged zone. Also, this zone receives direct oxygen and other atmospheric gases necessary for the survival of aquatic organisms.



The answer is There is more biodiversity in the splash zone because there are more nutrients available.
Hope this helps You!!
HIGH SCHOOL

Descriptions A. The elevated vertical board from which the hoop projects
B. The most basic shot in basketball; uses the backboard
C. A pass used to cover very long distances
D. A pass used for very long distances, but with higher velocity
E. Either of the two goals in basketball
F. A common pass that utilizes the floor
G. A common pass aimed at the torso of another player
H. Term for dribbling the ball from the front to the back of the body
I. Repeatedly bouncing the ball on the floor
J. A common shot usually taken 5 to 50 feet away from the basket



1. Dribbling

2. Chest pass

3. The spider

4. Bouncing pass

5. Overhead pass

6. Lay-up

7. Baseball pass

8. Jump shot

9. Backboard

10. Basket

Answers

The answers are as follows:

1. Dribbling - I. Repeatedly bouncing the ball on the floor
2. Chest pass - G. A common pass aimed at the torso of another player
3. The spider - H. Term for dribbling the ball from the front to the back of the body
4. Bouncing pass - F. A common pass that utilizes the floor
5. Overhead pass - D. A pass used for very long distances, but with higher velocity
6. Lay-up - B. The most basic shot in basketball; uses the backboard
7. Baseball pass - C. A pass used to cover very long distances
8. Jump shot - J. A common shot usually taken 5 to 50 feet away from the basket
9. Backboard - A. The elevated vertical board from which the hoop projects
10. Basket - E. Either of the two goals in basketball

Thank you for posting your question. I hope you find what you were after. Feel free to ask me more.
A. The elevated vertical board from which the hoop projects ---------- 9. Backboard
  B. The most basic shot in basketball; uses the backboard ------------- 6. Lay-up
 C. A pass used to cover very long distances ------------------ 5. Overhead pass
D. A pass used for very long distances, but with higher velocity ----- 7. Baseball pass
E. Either of the two goals in basketball --------------10. Basket
F. A common pass that utilizes the floor --------------- 4. Bouncing pass
G. A common pass aimed at the torso of another player ------ 2. Chest pass
H. Term for dribbling the ball from the front to the back of the body --- 3. The spider
I. Repeatedly bouncing the ball on the floor ------- 1. Dribbling
J. A common shot usually taken 5 to 50 feet away from the basket ------ 8. Jump shot
HIGH SCHOOL

What two pieces of information would you need in order to measure the masses of stars in an eclipsing binary system? (a) the time between eclipses and the average distance between the stars (b) the period of the binary system and its distance from the sun (c) the velocities of the stars and the doppler shifts of their absorption lines?

Answers

The time between eclipses and the average distance between the stars. Hence option a is correct.

What is binary system?

Binary system is defined as a pair of celestial bodies that are sufficiently close to one another that their gravitational pull compels them to orbit the barycenter. The binomial nomenclature was formally established as the current system of naming species by Carl Linnaeus, who is regarded as the founder of modern taxonomy and methods of categorization. He created the mechanism to distinguish between different species.

Eclipse is defined as a phenomenon in astronomy that happens when a celestial body or spacecraft is momentarily veiled by moving into the shadow of another body or having another body move in front of it. When one celestial body blocks light coming from or going to another, an eclipse results. The Moon enters the Sun's shadow on Earth during a lunar eclipse.

Thus, the time between eclipses and the average distance between the stars. Hence option a is correct.

To learn more about binary system, refer to the link below:

brainly.com/question/18415534

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The time between eclipses and the average distance between the stars.
HIGH SCHOOL

Cryptozoology is a field of study aimed at proving the existence of mystery animals such as Bigfoot and the Loch Ness monster. Why is cryptozoology not considered a true science? It uses creativity and imagination to develop its methods.
It is testable and changes as new evidence is discovered.
It is based on theories from the past and not on scientific laws.
It is based on anecdotal stories and not on evidence.

Answers

Cryptozoology is not a true science as it is based on anecdotal stories and not on evidence. So the correct option is D.

What is cryptozoology?

The study of animals based on rumours of their existence is called cryptozoology. The creatures studied under cryptozoology are called cryptids.

Animals like gorillas and giant squids were considered to be cryptids once but now they are species of animals recognised by science.

Meanwhile, creatures like the Bigfoot or the Loch Ness monster are considered to be cryptids. There are many stories or rumours of their existence and the people spreading them still hope for scientific validation.

The Loch Ness monster is believed to spotted in the lakes of Scotland. Loch - Lake. Nessie is a plesiosaur believed to lived during the Jurassic era. Sightings of these animals have been reported in lakes throughout the world.

Bigfoot is an ape-like structure reported to be seen in the forests of the USA and Canada.

Thus, the study of cryptids is called cryptozoology. Therefore the correct option is D.

Read more about cryptozoology, here

brainly.com/question/15934911

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Cryptozoology is considered pseudoscience, which means 'false science.'. Keeping that in mind, one could say that cryptozoology is D. It is based on anecdotal stories and not on evidence.  
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