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lidiya [134]
3 years ago
10

Science! Simple. 8th grade.

Biology
1 answer:
vovikov84 [41]3 years ago
8 0

Answer:

Atomic theory is the scientific theory that matter is composed of particles called atoms.

Solids: their molecules are close to each other.They can't change their shape nor they can does it expand to fill the entire available volume like gas.

Liquid: A liquid is an incompressible fluid that conforms to the shape of the container in which it is stored. It's molecules are not too close to each other.

Gas: Most gases cannot be seen but are present in the atmosphere.Their particles are far from each other.Gas is described by pressure, volume, temperature and number of particles

Explanation:

Hope you liked the answer ☺️

If yes then do mark my answer as brainliest

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The honeybee has 32 chromosomes in their somatic cells. They undergo meiosis but can
PtichkaEL [24]

Answer: 32 chromosomes, they are clones of the parent drone

Explanation:

The production of offspring drones without fertilization means that offspring that are produced are produced by mitosis, which results in daughter cells that are clones of the parent. They have the same amount of chromsomes as the parent drone, which is 32.

7 0
3 years ago
How many different elements are in O2?
yulyashka [42]

Answer:

six

Explanation:

Professor of Chemistry, University of Minnesota, Minneapolis. Oxygen group element, also called chalcogen, any of the six chemical elements making up Group 16 (VIa) of the periodic classification—namely, oxygen (O), sulfur (S), selenium (Se), tellurium (Te), polonium (Po), and livermorium (Lv).

6 0
3 years ago
Read 2 more answers
Investigate substances containing carbon or oxygen that relate to biological processes. Explain their main function in those pro
Scrat [10]

Answer:

I hope this helps!!!1

Explanation:

Carbon and oxygen are independent of each other but are very closely connected as well as interdependent. The following article will cover information that will help you understand the carbon-oxygen cycle in detail.

Life on planet Earth continues due to the presence of organic as well as inorganic nutrients present in nature. These nutrients need to be continuously recycled. If this doesn’t happen, all the nutritive resources in the world will get extinguished completely. No nutrients means no life on Earmeano, for the life cycle of every living being, unicellular or multicellular organism to sustain, recycling the nutrients is very important. One of the important cycles is the carbon-oxygen cycle.

The Process of Carbon-Oxygen Cycle

There are four steps involved in the completion of this cycle. These methods are discussed below:

Photosynthesis

Plants undergo photosynthesis which helps them produce energy and food for themselves. During this process, plants take in carbon dioxide (CO2) and absorb water (H2O) with the help of their roots. The chlorophyll present in the leaves and the energy from the sun, help convert CO2 and H2O into Oxygen O2, sugar, and water vapor. Oxygen (O2) is released by plants as a by-product of the atmosphere.

Formula for Photosynthesis

CO2 + H2O + Light ———-> (CH2O) + O2

The carbon dioxide from air and water from the soil in presence of light (energy) is taken by the plants and converted into carbohydrates and oxygen as by-products.

Respiration

Just as plants carry out photosynthesis, animals carry out respiration. Respiration occurs when animals take in oxygen from the air along with simple sugars from their food. This helps in the release of carbon dioxide, water, and energy from the animal body. During cellular respiration, animals require O2 while inhalation. When they exhale the waste product of cellular respiration, they release CO2 into the atmosphere again.

Formula for Respiration

(CH2O) + O2 ———-> CO2 + H2O + Energy

The carbohydrates taken from food like plants or carbon-based compounds along with oxygen are converted to carbon dioxide which is released into the air along with water and energy during respiration.

Combustion

It is a process of burning that occurs naturally in nature. For example, volcanic eruptions are natural combustion processes where carbon dioxide is released into the atmosphere due to burning. Nowadays, many environmental pollutants cause an increase in the amount of CO2 in the air. These include cars, factories, burning of woods, coal, nuclear energy, gas, etc. This irresponsible combustion and release of excessive carbon dioxide and other harmful gases in the environment is the major contributing factor to today’s global warming.

Decomposition

After the death of any living organism, i.e., unicellular or multicellular organism, it gets decomposed. This decomposition means insects, fungi, and bacteria (together called decomposers), help in breaking down the cellular components of the dead organism into its basic elements. These elements include water, calcium, nitrogen, carbon, and oxygen. Thus, decomposers help in the release of oxygen and carbon dioxide back into the atmosphere as their metabolic waste products.

The entire cycle can be summarized as, plants taking in carbon dioxide and releasing oxygen during photosynthesis. This oxygen released is taken up by animals who release carbon dioxide after carrying out respiration. Thus, the recycling of carbon and oxygen in the atmosphere will continue as long as respiration and photosynthesis occur. This also proves that to sustain life, plants are very important as they are the major contributors to the amount of oxygen present in the atmosphere. Although both cycles occur independently, they are, in a small way, interconnected to each other.

8 0
2 years ago
Which bar from the graph represents the photo??
RoseWind [281]

Answer:

It is bar 44

Explanation:

Hope this helps

7 0
3 years ago
Read 2 more answers
What four things do forensic scientists primarily do in order to reconstruct a crime and find the person who committed it?
Vladimir79 [104]

Answer:

Find, collect, label and analyze evidence

Explanation:

The application of science which is used to investigate crime scenes in order to find the correct evidence using different technologies is called forensic science. It plays a very important role in criminal justice and uses various discipline of subjects such as chemistry, physics, biology, computers. etc to find the main suspects in suspense of evidence.

    The forensic scientist arrives at the crime scene to look for the evidence and then collect them and take it to the laboratory for further analysis of the evidence with respect to crime scene. So the primary thing that the forensic scientist  do to reconstruct a crime and find the culprit is to

find, collect, label and analyse the evidence.

3 0
3 years ago
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