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Alex Ar [27]
3 years ago
8

Anyone can help me ?

Biology
2 answers:
antiseptic1488 [7]3 years ago
6 0

Answer:

C.making bread

trasher [3.6K]3 years ago
6 0

Answer:

C. You cannot reverse the making of bread. Once it's made it's made.

Explanation:

A chemical change is a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance: The formation of rust on iron is a chemical change.

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Which of the following is a function of the nucleus?
ra1l [238]
Builds protein is the correct answer
8 0
3 years ago
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How did fossil<br> fuels form, and how<br> are they obtained<br> and used?
Usimov [2.4K]

Explanation:

Fossil fuels are important energy sources for our every day activities.

  Formation of fossil fuels

Fossil fuels forms from the accumulation and burial of organisms in a basin of deposition. Instead of the organisms decaying, they preserve their carbon content. To be worthy of becoming fossil fuels, organisms must be buried in an environment where there is little to no oxygen to fast-track decomposition of the buried organic matter. Increase in temperature and pressure causes the organic matter to transform into fossil fuels.

How are they obtained

First, different fossil fuels have their extraction techniques because they occur in different physical state of matter.

For the solids e.g coal: exploration is carried out first and if a prospect is delineated, mining engineers design the best way to extract the coal from nature. Coal is usually found laid in sedimentary beds in nature. Top layers of sediments can be removed to extract the coal.

For fluids such as crude oil and natural gas, after a prospect is identified, a rig is usually constructed to extract the fluid and gas. The natural pressure allows for the fluids the rise within the drill used in extraction.

How are they used

Coal and gas are used to power electrical generating plants. They are used to heat steams which drives turbines and produce electricity.

Natural gas is used as a domestic fuel for cooking and so also coal.

When crude is processed a lot of product is obtained. Gasoline is used to power most internal combustion engines. Some chemicals useful for manufacturing plastics, drugs e.t.c are also derived from the processed crude.

Learn more:

Harnessing fossil fuel brainly.com/question/9231468

#learnwithBrainly

8 0
3 years ago
If an unknown organism has bilateral symmetry and gills, into which phylum can it be classified?
dalvyx [7]

It can be classified in the phylum chordata.

Phylum : chordata

Sub-phylum: Vertebrata

Division: Gnathostomata

Superclass: pisces (respiration occurs typically by gills)


5 0
3 years ago
Read 2 more answers
Which of the following expresses -7 as m/n in simple form ?
kicyunya [14]

Answer:

A (-7)/(1)

Explanation:

(-7)/(-1) would be a positive 7.

7/1 would be a positive 7.

(-7)/(0) would be 0.

4 0
3 years ago
What is the name of the cells that control the opening and closing of the stomota
Butoxors [25]

Answer:

guard cells

Explanation:

they control the opening and closing of the stomata

4 0
2 years ago
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