BIOLOGY MIDDLE SCHOOL

Which of the following is true of oceanic plates?*They are perfectly flat and smooth.
*They formed before other types of plates.
*They are heavier than continental plates.
*They move more often than continental plates.

Answers

Answer 1
Answer:

Answer:

Option (3)

Explanation:

Earth's crust is divided into two types, namely the oceanic crust (plate) and the continental crust (plate). These plates move over the layer of the asthenosphere due to the convection current that generates in the mantle.

These oceanic plates are denser (heavier) than the continental plates because oceanic plates are comprised mainly of denser basaltic rocks that are rich in plagioclase feldspar and pyroxenes. When magma comes out at the mid-oceanic ridge on the ocean floor it forms lava.

Whereas continental plates are made up of silicate rocks, granitic rocks, and some feldspars and are less denser in comparison to the oceanic rocks.

Thus, the correct answer is option (3).
Answer 2
Answer:

Explanation:

oceanic plates are heavier then other plates

Related Questions

Zat cair untuk mengisi termometer adalah
Why do you think scientists think the first organisms did not need oxygen to survive?
Why are mass extinctions important to geologic time?
A simple dialysis tubing setup is shown above. The left image shows the original experimental setup and the right image shows the effects after twenty minutes. What description explains the movement of particles through the dialysis bag?
Ice wedging is brought about by ____.a. carbonic acid freezing on rocks b. water and oxygen reacting c. water freezing and thawing d. rocks colliding with each other

Which is immediately formed when a plant egg is fertilized by sperm? A. a larva B. a pupa C. a zygote D. a spore

Answers

C, i hope I helped !
 a spore forms when sperm fertilizes so it is answer d

What are parts of a neuron?

Answers

4 basic parts; the dendrites, the cell body (also called soma), the axon, and the axon terminal.

Why does photosynthesis require light to occur?a. Cellular respiration produces light
b. Light adds energy and photosynthesis is endothermic
c. Light adds energy and photosynthesis is exothermic
d. Photosynthesis produces light

Answers

The answer is b it's is endorthermic
the answer is b. the photosynthesis process absorbs light energy to carry out the reaction, along with glucose anergy which is used to produce ATP.

Compare and contrast cell communication by nerve signal with cell communication by ion-linked channel receptors... please help fast

Answers

Nerve cells communicate by sending an electrical signal through an axon, from this molecules get released into the synapse this then binds itself onto receptor sites. With ion-linked channel receptors, the ligands get binded to a protein. The ion channels are then opened and the proccess gets repeated. Does that help?
Nerve cells communicate by sending an electrical signal through an axon, from this molecules get released into the synapse this then binds itself onto receptor sites

Which organism is most specialized

Answers

Answer:grizzly bear

Explanation:

The organism that is most specialized based on the given choices above is the grizzly bear which is letter d, it is because the grizzly bear is more efficient in carrying out tasks and has a different way of living compared to the other choices in which they are made different and makes the bear to be more specialized than of the other organisms.

Read more on Brainly.com - brainly.com/question/2144298#readmore

Answer:

chicken wangggggg

Explanation:

What is the sense???????

Answers

Essentially, the question is asking you: what sense (Touch, sight etc) deep-sea organism (an animal that lives deep in the ocean) rely on to survive.
In this case i think it would be touch(?) as these organisms mainly rely on vibrations as a mean of communication and navigation. Thus, this is their way of surviving even in the depths of the ocean.
Other Questions
Paragraph about how genetic variation and environmental pressures can cause a change in population
How was the brushtail possum transported to its new ecosystem?
Which of the following is not a function of carbohydrates in the body?
Explain why animals must eat but plants don't eat