Coal is to ______ as pen is to writing

Over 99 percent of calcium in the body is found within the A. Bones and Teeth B. Stomach and small intestine C. Liver and spleen

Wewaii [24]

Answer : ) A. Bones and Teeth

5 0

2 years ago

The barn owl is nocturnal. Describe the biological rhythm of the owl and discuss how extreme alterations in the number of daylig

IceJOKER [234]

<h2>History of Owl</h2>

Explanation:

Owls are found in various territories, <em>for example, deserts, woodlands, prairies and even the Arctic tundra</em>.
They home in <em>trees, in gaps in the ground, in horse shelters, and in caverns.</em> And keeping in mind that numerous different winged creatures relocate to hotter spots throughout the winter, most owls don't. They live in a similar spot throughout the entire year.
Circadian beat length varieties such as <em>brisk riser and night owls. </em>
<em>Circadian rhythms are cyclic natural changes</em> including the physical, mental, and conduct fucntioning of a life form, following a pattern of <em>around 24-25 hours</em>.
Their primary controller is <em>light and dimness in the earth. </em>
<em>Night owls</em> are progressively smart and imaginative and bound to land lucrative positions than warblers.
They have a spot to call their own domain and where they can conceal during the day from predators.
They likewise approach loads of various nourishment sources in light of the other living animals in the woodland.

5 0

3 years ago

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Solids will usually sink when placed in their own liquids. Which is an exception?

Marat540 [252]

WATER

Solids will usually sink when placed in their own liquids with the exception of water

Explanation:

Ice (the solid form of water) floats on water that is cooler than 4 degrees centigrade. This is unlike any other material and this phenomenon has been referred to as the ‘water anomaly’.

Most substances will sink in their own liquid because the solid form is denser than the amount of their own liquid that they displace when immersed. This is because the particles in the solid are closely packed together hence there are more particles per volume than in the liquid form.

Water however, expands at temperatures below 4 degrees and hence ice is less dense than water at 4 degrees and below. The particles in ice are farther apart than particles of water at 4 degrees and below. There is, therefore, more particles per volume in the liquid form of water than in ice – making ice less dense.

Learn More:

For more on 'water anomaly' check out;

brainly.com/question/871737

#LearnWithBrainly

4 0

3 years ago

Without undergoing any changes itself, the _____ makes changes to the ______.

BigorU [14]

Without undergoing any changes itself, the enzyme makes changes to the substrate.

<h3>What is an enzyme?</h3>

An enzyme is a biological catalyst that acts by lowering the activation energy in a chemical reaction.

In a chemical reaction, an enzyme binds to a substrate to convert it to one or more products.