Answer:
The fossils are able to give scientists clues about the type of organism that lived in an ancient environment.
Explanation:
Fossils are able to give scientists clues about the type of organism that lived in an ancient environment. That's because fossils are records of living things that were alive hundreds and millions of years ago.
When we talk about fossils we immediately think of bones, but the fossils can be taken, feces, leaves, roots, hair, among other factors of a living organism, which was trapped in rocks for many years, kept conserved and can be studied and evaluated.
The layer of solid ground that makes up all of Earth’s continents is called the Lithosphere. Thus, the correct option for this question is A.
The lithosphere may be defined as the rigid and outer part of any celestial body like earth. The lithosphere of the earth significantly includes the brittle upper portion of the mantle and the crust along with the outermost layers of Earth's structure.
In the region of the lithosphere, the rocks are cooler, stronger, and more rigid as compared to the other parts of the earth's surface. It is the strength of the rock and the existence of the continents that differentiated the lithosphere from other parts.
Therefore, the lithosphere is the layer of solid ground that makes up all of Earth’s continents. Thus, the correct option for this question is A.
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Answer:
An exoskeleton.
Explanation:
Tough outer shell of many insects is known as exoskeleton that represents an external skeleton. The exoskeleton provides protection and support to the insects body as they lack an internal skeletal system as higher organisms. In insects, it is made up of chitin.
Exoskeleton also plays role in sensing, feeding, excretion, and protection against desiccation in land insects.
Thus, the correct word to be filled in the blank is 'exoskeleton.'
B) contraction of body hair muscles
C) thyroid hormones increase basal metabolic rate of cells in the body
D) blood vessels dilate and blood is directed to the superficial layers of the skin
Blood vessels dilate and blood is directed to the superficial layers of the skins is one way in which the body will react to maintain homeostasis.
Homeostasis is the set of self-regulation phenomena that lead to the maintenance of constancy in the properties and composition of the internal environment.
Control in blood flow is a response that reduces heat transfer and therefore maintains body temperature.
Thermoreceptors upon detecting an increase in body temperature, are activated and transmit this information to the hypothalamus that receives the information.
Blood vessels constrict to reduce the passage of "warm" blood to the skin, allowing it to be used in vital organs.
Blood vessels in the skin dilate as a result of increased body temperature, allowing molecules to separate and occupy more space.
In addition, it increases the amount of warm blood that flows from inside the human body, increasing blood pressure and transmitting heat to the outside environment more quickly.
This allows body temperature to be lowered, a notorious consequence of this dilation of the vessels is the reddening of the skin where there is greater flow and transfer of body heat.
Therefore, we can conclude that blood vessels dilate and blood is directed to the superficial layers of the skins is one way in which the body will react to maintain homeostasis.
Learn more here: brainly.com/question/11553088
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