What is the earths layer, upper mantle made of?

Answers

Answer 1
Answer: The topmost, thin layer of it is very similar to the earth's crust. Together with the crust, we call it the lithosphere. Below the lithosphere is a layer of upper mantle called the astherosphere. This is made up rock that is fluid and can move.

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what does it mean to say that opposites attract when you are talking about atoms. PLEASE JUST HELP. I WILL DO ANYTHING (maybe)

Answers

Because the opposites join together and somtimes make something new

Answer:

Opposites attract means that the opposite of that thing, such as North and South on a magnet will get stuck together. They repel when they're the same.

Explanation:

Two 9×13 rectangles overlap to form a 9×22 rectangle. What is the area of the overlap region?

Answers

13+13=26 so 26-22=4 so 9x4

How can natural selection affect a predator-prey relationship in an ecosystem?Choose all answers that are correct.

A.
Over time populations stay the same even when another population changes.

B.
Natural selection only acts on select generations of predator and prey populations.

C.
Natural selection can act on both the predator and prey populations.

D.
Nature selects for traits that allow for them to survive and reproduce at a greater rate than those without these traits.
HELPP

Answers

D. Nature selects for traits that allow for them to survive and reproduce at a greater rate than those without these traits.

C. Natural selection can act on both the predator and prey populations.

c and d because the increase of the reproduction provides more food for the predator and adaptation will work on both predator and prey

Which of the following statements regarding chloroplasts is false?Choose 1 answer
A Chloroplasts contain DNA.
B According to the endosymbiosis theory, they were formed by an ancestral eukaryote
consuming photosynthetic bacteria.
C Thylakoids are pigments found within chloroplasts that give plants their green color.

D Photosynthesis occurs in the chloroplast

Answers

The statement regarding chloroplasts is false - C Thylakoids are pigments found within chloroplasts that give plants their green color.

In the plant cells and other autotrophic cells, there is a cell organelle called chloroplast that is essential for every ecosystem as it produces food for their energy.

Chloroplasts:

  • The chloroplast contains a pigment chlorophyll that gives the plant its green color.  
  • The chloroplasts also have a double outer membrane.  
  • Chloroplasts are minute flattened granules that have their own DNA.
  • The endosymbiotictheory states that chloroplast is formed by an ancestral eukaryote consuming photosynthetic bacteria.

Thus, the statement regarding chloroplasts is false - C.

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I believe/think it is B

Respiration occurs in

Answers

Answer:

Animals and Plants(Including Humans)

Explanation:

Both organisms have the required organs for Respiration


Respiration happens in the cells of plants, animals and humans, mainly inside mitochondria, which are located in a cell's cytoplasm

What are 3 ways that humans are considered a diverse population?

Answers

no two humans are the same

Final answer:

Humans demonstrate significant diversity in biological traits, social characteristics, and agricultural practices. This diversity is reflected in physical attributes and social differences between societies, alongside the wide range of plants and animals cultivated for various environmental conditions.

Explanation:

Humans are considered a diverse population in many ways, but there are three main aspects that stand out.

Biological Diversity: With billions of humans on the planet's surface, human beings possess considerable biological diversity. Visible traits like skin color, or invisible genetic markers like blood type, contribute to this diversity. Within any subcategory, there will be more variation than that exists between different categories.

Social Diversity: Human social diversity arises from our societies' differing physical or social characteristics. These can vary greatly, resulting in a rich tapestry of cultures, languages, traditions, and social norms across the globe.

Agricultural Diversity: Humans have cultivated an immense diversity in domestic plants, animals, and fungi based on local needs and environmental factors. For example, potatoes have been bred into thousands of varieties to cope with specific soil and climate conditions—this mirrors cultural diversity within human populations.

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