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Fittoniya [83]
3 years ago
11

A(n) _______ is a pure substance that can't be broken down into simpler substances by chemical or physical means.

Biology
1 answer:
Rasek [7]3 years ago
6 0
You don't have the options to choose from but I believe from past experience the answer to the question is element. 
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What is the role of the enzyme diaphorase
Kruka [31]

The role of the diaphorase enzymes is to transfer hydrogen ions between donor and acceptor molecules.

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2 years ago
How do you use the periodic table to recall the lonic charge of an alkali metal, an alkaline earth metal, or aluminum?
ivann1987 [24]

Answer:

Actually, The ionic charging of : alkali is +1 alkaline earth metals is +2 aluminum is +3. That is the use periodic table to recall the lonic charge of an alkali metal, an alkaline earth metal, or aluminum

Explanation:

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3 years ago
Someone please do this for me, due soon. I'll give brainliest, thanks and 5 stars.
slava [35]

Answer:

Yes.

Explanation:

Yes, a tree is falling over in a forest make a sound because both the tree and ground are hard surfaces which can produces sound by contact physically with each other. For testing this hypothesis, we have to take a tree and cut that tree. when the tree falls on the ground it will definitely produces sounds by contact physically with the ground when falls with a large force.

4 0
3 years ago
Skin tanning is an example of which adaptation technique? O A behavioral adaptation OB. cultural adaptation OC. structural adapt
Zarrin [17]

Answer:

Physiological

Explanation:

Definition

A metabolic or physiologic adjustment within the cell, or tissues, of an organism in response to an environmental stimulus resulting in the improved ability of that organism to cope with its changing environment

3 0
3 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
Read 2 more answers
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