BIOLOGY MIDDLE SCHOOL

All of the following cause mechanical weathering EXCEPT ____.a.
ice
c.
burrowing animals
b.
tree roots
d.
carbonic acid

i need two people to answer to pick brainleist

Answers

Answer 1
Answer: The answer is D.carbonic acid because that would be chemical weathering  

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Mr. Morales is teaching a lesson on classification. He says that spiders are classified as a different group than insects because they have eight legs instead of six legs. He explains that spiders evolved first. Mr. Morales also says that having eight legs is the derived trait that separates the two groups. Antonio thinks Mr. Morales is wrong. Which piece of information is Antonio considering?

Human skin can heal after it has been cut. What is this an example of?

Answers

A starfish like if it loses its leg it will eventually grow one back.

Answer:

Maintaining structure.

Explanation:

The cut heals to maintain structure.

Q4: Which of these human activities is most likely to cause the excessivegrowth of phytoplankton in the world's oceans? *

A.The use of chemical fertilizers that are carried by runoff into rivers.

B.The logging of old-growth forests, which results in erosion.

C.The spraying of chemical herbicides that reduce carbon dioxide in the air.

D.The mining of fossil fuels, which requires digging underground tunnels

Answers

Answer:

C.The spraying of chemical herbicides that reduce carbon dioxide in the air.

Explanation:

The rapid growth of a microscopic marine alga in North Atlantic is a result of environmental changes such as the increase of carbon dioxide levels in water, a new study found.

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Variety in species exists because of___. A. Mitosis
B. Asexual reproduction
C. Fission
D. Sexual reproduction

Answers

D. Sexual reproduction
because sexual reproduction

suggest one or two simple experiments To determine whether a solid white substance is a lipid or a carbohydrate. What evidence would you need to support each hypothesis? PLZ HELP ASAP ;(

Answers

Is it hydrophobic or hydrophilic? Place the substance in water and see what happens... Does it shed all of the water immediately, or does it absorb the water...?

You can also place the substance on some paper. If it makes a grease spot (if you've ever put Cheez-its or Goldfish on your homework paper, you know what I'm talking about) then you know its a lipid. If it does not make a grease spot, you know it is NOT a lipid, so it will be a carb.

If this helped, please make it the brainliest answer! (The button's at the bottom of my answer) :)

Which kind of aquatic ecosystem does the photograph most likely show?A. Marsh

B. Swamp

C. Lake

D. River

Answers

The correct answer is D. River

Explanation:

Rivers are one of the most common ecosystems. A river is characterized by flowing water in which biotic factors (animals, plants, bacteria, etc.) and abiotic factors (rocks, water, minerals) interact. Also, they cross major ecosystems such as forests or rainforests.

Moreover, rivers are unique because they contain fresh rather than salt water as in the ocean, and they are always flowing while in a marsh, swamp or lake the water does not flow. This suggests the ecosystem is the photograph is a river because in this the water flows and as a result of this, there is a strong current which is possible in a river but not in a lake, marsh or swamp.

Answer:

river

Explanation:

it is smaller than the width of a lake

16. Which of the following would be LEAST likely to lead to speciation? *O
A flock of sparrows is blown off course to an island far from their natural habitat.
A mutation arises within a population of orchids that prevents the orchids from
breeding with other populations of orchids.
O
A volcanic eruption creates a barrier separating two populations of rodents.
A single coconut is carried to a remote island in the Pacific Ocean by water currents.

Answers

A single coconut is carried to a remote island in the Pacific Ocean by water currents would be least likely to lead to speciation.

What is speciation?

"Speciation is how a new kind of plant or animal species is created."

When speciation occurs?

"Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics."

What are the main factors of speciation?

The factors responsible for speciation are:

  1. Geographical barrier.
  2. Natural selection.
  3. Genetic drift.
  4. Large mutation.

What are the types of speciation?

There are five types of speciation:

  1. allopatric,
  2. peripatric,
  3. parapatric,
  4. sympatric,
  5. artificial.

To know more about speciation here brainly.com/question/9589072

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Answer:

A volcanic eruption creates a barrier separating two populations of rodents.

Explanation:
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