What is a mass extinction?

What are some stimuli they seem to respond to?

Vladimir [108]

light, heat, and soil.

Hope this helps!

-Payshence

6 0

4 years ago

living organisms use osmoregulation to balance solute and water concentrations in their cells, tissues and organs. Many marine o

Artyom0805 [142]

there will be a more negative water potential in the marine organism, so by osmosis the water will move into the cells from the fresh water, causing swelling.

It is c

7 0

3 years ago

Read 2 more answers

Sperm can survive in the female reproductive system for six days, but they need to have 10 hours after ejaculation to undergo ca

sergeinik [125]

Answer:

Five days prior to ovulation and day of ovulation represents a six day fertile window of a women’s cycle

Explanation:

In the five days prior to ovulation and day of ovulation, the chances of conception are high. These six days represents the fertile window of a women’s cycle during which the sperm with a life span of five days and egg with a life span of 24 hours can fuse. However, likelihood of conceiving increases if two individuals mate in the first three days of these six days fertile window of women’s cycle.

4 0

4 years ago

1. What is the scientific method? Is there just one universal scientific method? Why or why

natulia [17]

Answer:

Follows are the solution to this question:

Explanation:

1)

Its scientific process explains how researchers obtain worldwide knowledge. 6 key elements define this method: queries, assumptions, experiments, observations, evaluation, and results. It is interconnected measures, however, that they should not operate in the same sequence often.

2)

It is about learning and describing as just a collective body, Science aims to give an ever more rigorous explanation of the workings of a natural environment, its elements as well as how the country now should be.

3)

Science will help to create the latest knowledge in solving practical problems and determine personally and mutually responsible choices.

4)

Science will allow the intellect to develop new information and also to overcome the excitement on how today's world is developing and functioning. Science was important because it helped to shape the world wherein we live today.

5)

It can write credibility through the use of reliable information to back up your argument in your research. High-quality resources that support your arguments will more frequently lead to better outcomes for the tasks. Its use of reliable sources can help as a topic.

6)

The peer-review will also include subjecting of its author's empirical research and research into another relevance and suitabilities to review by other experts in the same field. Its author should decide if a work is acceptable via a peer review.

7)

Knowledge in which observations are only based on what can be observed directly may help students to learn how science can infer. It can help students to understand why scientists utilize facts in responding to questions by distinguishing among observations and assumptions.

8)

Other components are kept similar by constant. Control systems have such preferential privileges for a single group, whereas the group doesn't seem to.

9)

In seeing what occurs if you adjust the factor to also be tested you can equate the results of the experimental groups with those of the human rights group. The treatment group is also an integral part of a study because it allows everyone to be removed and separated.

4 0

4 years ago

1. Of the six species of seals found in Antarctica, four of them breed on the actual ice in the spring months. Which species of

soldier1979 [14.2K]

1) The answer is C. Weddell and Crab eater seal usually form breeding groups or colonies when breeding. The Leopard and Ross seals are solitary when breeding. Antarctic and elephant seals on the other hand breed in dense groups on beaches when breeding.

2) The answer is C. Sea ice is frozen water that forms, grows and melts in the ocean.It occurs both in the arctic and antarctic. The sea ice grows during the winter months and melts during the summer months making it a seasonal ice. Areas with sea ice do not absorb much light because sunlight that strike it are reflected back into space.

3) The answer is C. Heat capacity. When the sun heats the surface evaporation of water occurs. The water vapour is lifted into the atmosphere using heat currents. The water vapour combines with dust particles to form clouds which later rain.

4) The answer is C. The cold water is denser and thus is moves to the bottom(downwelling). Water that is rich in nutrients then moves up to the surface to replace the cold water. The increased nutrients trigger the growth of organisms like the algae.

5) What is the difference between El nino and La nina.
El Nino is the warm phase of ENSO while La Nina is the cold phase of ENSO. El Nino usually brings rainfall and warmth to western pacific regions and coldness and dryness to the eastern pacific region while La Nina brings coldness in the eastern pacific regions and heavy rains that cause floods in the western pacific.

6) The answer is C. During the La Nina year the sea surface temperature is greater than normal in the Western pacific. The La Nina is an exaggeration of the usual seasonal cool cycle unlike El Nino which is an exaggeration of the warm cycle. The La Nina year occurs after some El Nino years.

7) Names for hurricane are beneficial over latitude longitude identification because they are easier to remember. They avoid confusion which is more likely when using latitude longitude identification.They also help to spread awareness and are much easier to track.

8)The answer is B. The leopard is the second largest seal that have powerful jaws and long teeth. They use these teeth to kill smaller seals, fish and squid. They also feed on penguins. This is why they do not rely on krill as a major food source.

9) The answer is A. The adelie penguins feed mostly on krill but switch to fish during breeding because fish and squid are more abundant and krill is more scarce. I think this is because during the breeding season birds spend short periods at sea and hence more fish is available.

10) The answer is A. Due to the fact that penguins live in cold environments, they have adopted a few features to keep them warm. These features include fat under their skin,layers of features and staying together in groups. Penguins swim fast in order to launch themselves in the air.

11) The population of penguins have greatly increased due to the hunting of baleen whales. Baleen whales are know to eat krill and fishes. This means when there is a reduction of the baleen whales there will be an increase in the amount of krill and fish. This will result to an increase in the amount of penguins since food availability will increase increasing their chances of survival.

3 0

4 years ago

What is a mass extinction?​

What is a mass extinction?