BIOLOGY MIDDLE SCHOOL

According to the theory of plate tectonics, _____.A. the lithosphere is divided into plates

B. the asthenosphere is strong and rigid

C. the asthenosphere moves over the lithosphere

D. the asthenosphere is divided into plates

Answers

Answer 1
Answer:

According to the theory of plate tectonics, A. the lithosphere is divided into plates.

A tectonic plate is also referred to as lithospheric plate and it can be defined as an enormous (massive), solid, irregularly shaped rock slap, that is typically made up of two (2) plates:

  • Continental plates.
  • Oceanic plates.

The theory of plate tectonics states that the solid outer crust of planet Earth (lithosphere) is divided into massive slabs of solid rock (plates) that move over the asthenosphere, as well as the upper portion of the mantle.

In conclusion, we can deduce that the lithosphere is divided into massive slabs of solid rock (plates) according to the theory of plate tectonics.

Read more: brainly.com/question/24057159
Answer 2
Answer:

According to the theory of plate tectonics, _____.



A. the lithosphere is divided into plates

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Two methods of active transport

Answers

One method of the active transport is the bulk transport - using the endocytosis or exocytosis for the process of moving bigparticles through the membrane.
Another example would be with the use of special transport proteins in plasma membrane. These proteins to change their shapes thanks to ATP (Adenosine triphosphate).This is how they manage transport materials from low to high concentration.
Active transport methods:
- symport - across one protein, two molecules are transported in the same time and direction
- antiport - across one protein, two molecules are transported in opposite directions, which one enters into protein and one leaves it.

I hope I helped :D

Explain why convection happens more efficiently in water or air than it does in rock

Answers

A rock is actually an object so there are a lot of molecules that are stuck together and cannot let most of the heat pass through it. While in water and air, the molecules are more free-willing and more spacious so I think that is why convection travels faster and more efficiently in water and air than in rocks.

Tectonic plates are made of earth asthenosphere

Answers

I think....not sure.

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.

Learn more about:

brainly.com/question/16980390
I believe/think it is B

What is the overall structure of the DNA molecule?

Answers

The overall structure is said to be a double helix composed of nitrogenous bases and the sugar backbone. It is also double stranded too

2. All of the following are correct about enzymes EXCEPT(A) the mechanism by which enzymes work is known as lock and key
(B) they are proteins
(C) they denature at high temperatures
(D) they are assisted by vitamins and minerals
(E) enzymes are not normally degraded during a reaction
48 SAT BIOLOGY

Answers

Answer:

The statement D 'they are assisted by vitamins and minerals' is incorrect.

Explanation:

Enzymes are biological catalysts which speed up a reaction. Their working mechanism is usually referred to as lock and key mechanisms as they make a lock and key type model while functioning. Each enzyme is specific for a specific kind of substrate. All enzymes are proteins. Enzymes itself are not degraded or get used up in a reaction. They might change from one form to another. But they are not assisted by vitamins or minerals, hence that statement is incorrect.

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