About 75 percent of earth surface is covered by

Answers

Answer 1
Answer: Water! It is the source of all life.
Answer 2
Answer: About 75% of earth i covered by water , e.x. Atlantic Ocean or Baltic Sea

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I have moist skin but no scales, and two pairs of legs. Although I have lungs and live on land, my young usually live in water and use gills to breathe.
Which factors would explain this pattern among predator and prey populations in this area?Choose all answers that are correct A: As there is less food for the predators, their numbers increase. B: The larger predator population requires more food, reducing the number of the prey. C: The larger predator population requires more food, increasing the number of the prey. D: As there is less food for the predators, numbers decline. PLEASE HELPPP!!
What is natural selection
To which class of compounds does ammonia belong?
What are two different forms of a single gene called? A.traitsB.factorsC.alleles <<<D.chromosomesI think C

Cows need to breath because​

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Answer:

Probably because they just need air to being able to live and have air going in and out like carbon dioxide and getting rid of used air.

Definition of experiment

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Experiment is a scientific procedure taken to test a hypothesis or demonstrate a fact

Explain what type of stimulus each sense organ responds to and how.

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The sense organs contain receptors that are sensitive to stimuli.

The nervous system consists of the central nervous system - brain and spinal cord -and peripheral nerves. Nerve impulses travel through the axons of neurones - nerve cells. Reflex actions are fast, automatic and protective responses.

Human vision is binocular, which gives us a good perception of depth. Vision defects include short-sightedness, long-sightedness and colour blindness.


Eversion is performed by which of the following muscles?

Answers

Peroneus longus, peroneus brevis and peroneus tertius

Final answer:

Eversion, a foot movement where the bottom of the foot is turned laterally (away from midline), is performed by the tibialis posterior muscle, assisted by the fibularis longus and fibularis brevis.

Explanation:

In the context of the question, eversion is a foot movement involving the intertarsal joints of the foot in which the bottom of the foot is turned laterally, away from the midline. This action is performed mainly by the tibialis posterior muscle. Other muscles that assist in this movement are the fibularis longus and the fibularis brevis.

The tibialis posterior muscle works to plantar flex (bend the foot downwards) and invert the foot (turn the sole of the foot inwards). In contrast, during eversion, the bottom of the foot turns outward, away from the midline of the body.

Understanding these movements and the muscles involved can help you visualize how our bodies stabilize while walking or running on uneven surfaces, make quick side-to-side direction changes in active sports, and more.

Learn more about Eversion here:

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John is trying to identify how strong his lungs are. In order to do so he finds out his TV is 450 ml, IRV is 2.6 L, ERV is 900 mL. What is his vital capacity

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Answer:

Vital capacity can be defined as the maximum volume of air a person can breathe in after a forced expiration. It is equivalent to the sum of expiratory reserve volume (ERV), tidal volume (TV) and inspiratory reserve volume (IRV).

  • Expiratory reserve volume (ERV): It refers to the volume of air a person can exhale by forcible expiration or air exhaled from the end-expiratory position.
  • Tidal volume (TV): It is a volume of air inhaled or exhaled during a normal respiration.
  • Inspiratory reserve volume (IRV): Maximum volume of air a person can inhale from the end-respiratory position.

Now, the vital capacity of John would be =  450 + 2600 + 900 ml

= 3950 ml or 3.95 L.

- A scientist is determining the age of a rock by comparing their position to other rock layers. By doing this, the scientist is determining ___. - A)the date the rock was formed
B) the relative age of the rock
C) the absolute age of the rock
D) the level of radioactive isotope decay in the rock-
-At first I thought it was the date the rock was formed...But I think it wrong, so I looked over the text and now I'm thinking they want it to answer eider B-C relative or Absolute age of the rock. So I can cross off A and D. And by doing that, I had to take a look into my notes, and I notice my notes aren't the best but from what I know, Absolute determines whether it gives up the true ‘age’ of a rock or fossil. And Relative doesn't provide a “true age’’... But now that I'm thinking on it absolute looks to see if it mainly organic or tissue, while Relative mainly sedimentary rocks. So I'm thinking it B now, but I feel like I'm confusing myself with all this. So I wanted to understand this better and get a clear answer to this. If my answer wrong, can I get a short explanation as to why?-

Answers

The answer is b, for he is comparing the two rocks to find an age relative to the other