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Arturiano [62]
3 years ago
11

What are domains in biology?

Biology
1 answer:
olga_2 [115]3 years ago
3 0
Domains are the highest ranking of organisms in taxonomy. They are notably Bacteria, Eukarya, and Archaea
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15 points for this! Thank You
zalisa [80]
Well, I don’t know the question but I believe that John is correct but they would have to have to be strong stilts
3 0
3 years ago
Which of the following behaviors allows a bird to maintain a constant body temperature in extremely hot weather?
patriot [66]
<span>d. All of the above

These behaviors;

Spreading wings
Flattening feathers
panting

are all evolutionary process to maintain body temperature. Birds are warm-blooded animals. Also known as </span><span>homeotherms, which is defined as having the constant body temperature. This is a vital function for the survival of the specie.
</span>
----

<span>c. are hollow
</span>
The bones of most birds are hollow in order for the weight of the birds to be light for them to fly. 
8 0
3 years ago
In stressful situations, the sympathetic nervous system ________ the arteries of the circulatory system and ________ the pupils
sukhopar [10]
The correct terms to fill in the blanks would be contracts and dilates. In stressful situations, the sympathetic nervous system contracts the arteries of the circulatory system resulting to the dilation of the pupils of the eyes. Also, during these situations, the blood sugar levels are raised since the hormones for stress kick in to combat the stress which in turn raises the blood sugar. 
4 0
3 years ago
Is the pit that marks where the umbilical cord was attached before birth?
liubo4ka [24]
The pit that marks the location of the umbilical cord after birth is known as the navel or belly button. All animals that grow placenta during fetal development will have a navel or belly button. The scientific name of the structure is the umbillicus. It can be a depression in some individuals or raised in others.
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Why is photosynthesis considered the most important chemical reaction on earth?
Sergeu [11.5K]
Because it creates energy and food for different beings 
5 0
2 years ago
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