1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexxx [7]
2 years ago
7

How does carbon cycle through Earth's systems? A. As fossil fuels are burned, carbon dioxide is made available for photosynthesi

s in animal cells. When the animals die, carbon is released into the soil, and the animal remains form new fossil fuels. B. Animals absorb carbon dioxide through their skin. Dead animals release carbon into the soil. Plants absorb the carbon from the soil and release carbon dioxide during photosynthesis. C. Plants absorb carbon dioxide through their leaves. Animals take in the carbon when they eat the plants. Animals exhale carbon dioxide. Dead plants and animals release carbon into the soilling D. Photosynthesis releases carbon dioxide into the atmosphere Cellular respiration uses carbon dioxide​
Biology
1 answer:
Strike441 [17]2 years ago
6 0

Answer:

D. Photosynthesis releases carbon dioxide into the atmosphere Cellular respiration uses carbon dioxide​.

Explanation:

Carbon dioxide is taken out of the air by the photosynthesis process to make carbon food for crops.

Animals and plants need a mechanism called respiration to remove carbon dioxide gas.

When combustibles are burned, carbon flows from fossil fuels to the air.

You might be interested in
Is added to refined grain products as part of the enrichment process.
Butoxors [25]

Answer is b. Thiamine

Vitamins are essential nutrients which are crucial for maintaining optimal health. Vitamin B-complex is a water soluble vitamins which includes thiamine (B1), niacin (B3) riboflavin (B2), folate and iron. These are added during enrichment process of foods like cereal grains and breads, as well as other foods such as meat, poultry, eggs, fish milk, legumes, etc.

4 0
3 years ago
A, B, C, D and E are pathogens of different diseases for human beings. The route of entry of pathogens in human body is differen
Goryan [66]

Answer:

Microorganisms which causes diseases is known as pathogen.

Explanation:

<u>PATHOGEN -:</u> Pathogens are agents that live in a host and are responsible for causing infections or diseases in that host, such as a human being. Microorganisms such as bacteria , viruses , fungi or protozoa, or other organisms such as parasites, worms and even contagious proteins such as prions, may be pathogens.

<u>Viruses:</u> Viruses are micro-organisms that are composed of nucleic acid and covered by a protein sheet. A lipid (fatty) outer layer is also present in some viruses. Enveloped viruses are called these. Non-enveloped viruses are considered those that do not have this lipid outer layer. Only inside their host's living cells are viruses able to replicate.<u> EXAMPLE -:</u>  Influenza (influenza A and B viruses) and the common cold (rhinovirus) are examples of infections caused by viruses.

<u>Bacteria: </u>These are microorganisms which have a nucleus containing DNA surrounded by a cell wall or membrane. Among bacteria, the composition of the cell wall differs. If they are able to access food and nutrients, they have a more complex structure than viruses and can multiply beyond the host.<u> EXAMPLE -: </u> Foodborne diseases can be caused by bacteria such as Salmonella enterica and Escherichia coli, while Staphylococcus aureus can cause skin infections.

<u>Fungi:</u> Fungi are single-celled or multicelled species that can live outside a host. They consume food and nutrients created after digestive enzymes have been secreted into their atmosphere. <u>example-: </u> The foot of the athlete (Trichophyton mentagrophytes) and yeast infections (Candida albicans) are examples of infections caused by fungi.

<u>Prions:</u> These are infectious agents made up entirely of proteins and capable of transferring to other prion proteins their infectious properties.<u> EXAMPLE -: </u>Extreme infectious diseases such as bovine spongiform encephalopathy (mad cow disease) and variant Creutzfeldt-Jakob disease (vCJD) can be caused by prions.

<u>Protozoa: </u>Protozoa are single-celled organisms that display habits that are similar to animals, such as the ability to travel through water, and are capable of harvesting other microorganisms. They are able to live outside the human host, but when they enter the human host and spread, causing infections and diseases, they may also be parasitic in nature. <u> EXAMPLE -: </u>Malaria and giardia include common infections

  • <u>Yes , pathogen enter into the body directly -:</u> Direct contact infections spread when, through direct physical contact with blood or body fluids, disease-causing microorganisms move from the infected person to the healthy person. Touching, kissing, sexual contact, contact with oral secretions, or contact with bodily lesions are examples of direct contact.
  • <u>INCUBATION PERIOD OF A PATHOGEN -</u>:The period of incubation is the interval between exposure to a pathogenic organism, a drug, or radiation, and when the first signs and symptoms are evident.
5 0
3 years ago
Which explains the information needed to calculate speed and velocity?
m_a_m_a [10]

Velocity is a vector quantity which means it has both magnitude and direction means in order to calculate it another vector quantity is used which is displacement on the other hand speed is a scalar quantity.

4 0
3 years ago
HELP ASAP: <br><br> how many trials did it take for half of the virtualium atoms to decay?
Len [333]

Answer:

<h3><u><em>Carbon-14 has a half-life of 5,730 years. Taking one atom of 14C, this will either have decayed after 5,730 years, or it will not. But if this experiment is repeated again and again, it will be seen that the atom decays within the half life 50% of the time.</em></u></h3>

<u><em></em></u>

6 0
3 years ago
Telophase is accompanied by the division of cytoplasm between two daughter cells . What is this process called
Dimas [21]

Answer:

Cytokinesis

Explanation:

Cytokinesis is similar to telophase. The cell devides it cytoplasm into two pieces which creates two daughter cells.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Just a reminder to take a break! Your brain is hurting and you need some water! Use this app to understand not to cheat too!
    5·1 answer
  • Organisms that are not autotrophs
    8·1 answer
  • What type of biomolecule is in orange juice
    13·1 answer
  • In which phase of photosynthesis is ATP created
    5·1 answer
  • After the bases of DNA were identified, Erwin Chargaff analyzed the percentages of adenine, thymine, guanine, and cytosine in th
    14·1 answer
  • The focus of _____ was to uncover the elements of the mind, while _____ focused on identifying what thoughts, feelings, and beha
    5·1 answer
  • Blood has traveled from the heart to the toes. Which describes the next step
    5·1 answer
  • How can I distinguish between the three stages of Interphase (G1, S, and G2)?
    14·1 answer
  • in gel electrophoresis, DNA fragments move across a gel. describe what cause them to move in (2-3) sentences
    9·2 answers
  • Pls help
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!