BIOLOGY HIGH SCHOOL

What are the three main parts of the geosphere?lithosphere, crust, core
hydrosphere, crust, core
lithosphere, mantle, core
crust, mantle, core

Answers

Answer 1
Answer: The correct answer is crust, mantle, and the core. The Lithosphere and the hydrosphere are a part of the atmosphere.
Answer 2
Answer:

Answer:

crust, mantle, and the core

Explanation:

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Please Help! Don't remember going over this! What activates a convection current, starting the flow of a fluid? A. cold temperatures at the north pole B. heated liquids at the earth’s surface C. iron-rich rocks in the mantle D. temperature differences in the mantle

Answers

The correct answer is D. temperature difference in the mantle I am an Online Middle Schooler and I got it right

Final answer:

Temperature variations in the fluid start convection currents. The lower mantle in the Earth's mantle heats up due to heat from the core, which causes it to rise. The substance falls back as it cools, causing the convection current. The correct option is D.

Explanation:

Temperature differences in the fluid's area are what cause a convection current to be activated and the flow of a fluid to begin. The Earth's mantle is where this is most noticeable.

The lower mantle's temperature rises in this situation as a result of heat from the core. The density of the mantle material drops as it warms, causing it to rise.

As it rises and moves away from the heat source, however, it cools down, gets denser, and sinks back.This movement of rising and sinking due to temperature differences creates the convection current.The correct option is D.

Learn more about Convection Currents here:

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A species is a group of organisms capable of mating and producing offspring, and speculation is the process of forming a new species. One way a new species may form is by geographic isolation. This occurs when members of a population are physically separated, for example, by a river, or a desert. After the separation the two populations, responding to different conditions, will adapt differently, and so their evolutionary paths willa. converge.
b. dissect.
c. diverge.
d. reverse.

Answers

The answer is c. diverge.

When a new species form by geographic isolation, it is called geographical speciation or allopatric speciation. In this case, divergence evolution occurs. This is because of physical separation which prevents gene flow between distinct populations. These populations will eventually diverge and members of the populations, which once belonged to the same species, will no longer be able to mate and produce offspring. Eventually, the formation of new species will occur.
a. Diverge, is the answer to the question.

A gland secretes enzymes through a duct onto the surface of a body part. Which gland is it most likely to be?. . A.pituitary gland. . B.salivary gland. . C.thyroid gland

Answers

I believe the correct answer among the choices listed above is option B. A gland secretes enzymes through a duct onto the surface of a body part is a salivary gland. It is under the classification of exocrine glands. Hope this answers the question.

Answer: Salivary Gland

Explanation:

The salivary gland in human being is exocrine gland which helps in the production of saliva through a system of ducts.

Human beings have three paired major ducts in salivary glands that secrete their secretions in the mouth by the help of duct.

The main type of enzyme secreted is alpha-amylase which helps in the breakdown of starch into glucose and maltose.

Which of the following events happens first in the development of a new organism?a. A morula is formed.
b. A blastocyst implants into the uterine wall.
c. A sperm fertilizes an egg to form a zygote.
d. A zygote undergoes mitosis.

Answers

The answer is c. A sperm fertilizes an egg to form a zygote.

The first step in the development of a new organism is a sperm fusion with an egg and formation of a zygote. The zygote then undergoes mitotic divisions and as a result a morula forms. Morula is 16-cell mass that continues to divide and forms a blastocyst, which later implants into the uterine wall.

How much of Haiti’s forests have been cut down

Answers

over 45.5 trees in the forest have been cut down i used to live there

What is the attached body form of Cnidarians

Answers

The attached body form of a cnidarian would be the polyp. The polyp attaches to a surface, much like a stalk with brwnches
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