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dusya [7]
3 years ago
7

Which elements are in the substance that makes up about 60% of the male human body

Biology
2 answers:
Romashka-Z-Leto [24]3 years ago
7 0
Carbon, hydrogen and oxygen
Umnica [9.8K]3 years ago
3 0

Answer:

Hydrogen and Oxygen

Explanation:

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Which is true of the light reaction of photosynthesis?
krek1111 [17]

Answer:

Answer: The correct option is C) It produces ATP.

Photosynthesis is the process by which green plants prepare their own food using CO₂ and H₂O in the presence of sunlight. It is primarily divided into light reaction and dark reaction.

The light reaction takes place in the thylakoid membranes of the chloroplast. In this reaction, energy from sunlight is captured by the chlorophyll pigment via a series of chemical reactions. This results in the formation of two high energy chemical compounds, which are ATP and NADPH.

These compounds are further used in the dark reaction for the synthesis of food ( which is glucose).

Thus, it produces ATP is true for the light reaction of photosynthesis.

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3 years ago
Distant trees were located closer to the top of the artist's canvas than were the nearby flowers. the artist was clearly using t
-Dominant- [34]
<span>Distant trees were located closer to the top of the artist's canvas than were the nearby flowers. The artist was clearly using the distance cue known as relative height. The distance cue, also known as depth perception, is related to a subject's varying size. </span>
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3 years ago
Is this Red blood cell in a Hypotonic, Isotonic, or<br> Hypertonic solution?<br> H2O<br> LH₂O
fenix001 [56]
Isotonic because water is going both in and out of the cel
3 0
3 years ago
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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 characteristic do protozoans Foraminiferans (Phylum Sarcodines) and coccolithophores (Phylum Haptophyta) have in common?
shtirl [24]

The common characteristic of those two organisms is hard spherical shells (exoskeleton).

Foraminiferans are single cell marine eukaryotes divided into granular endoplasm and transparent ectoplasm. Foraminiferans are enveloped with tests, hard shells, usually composed of calcium carbonate (sometimes from organic compounds or silica).

Coccolithophore is a unicellular, eukaryotic alga with special calcium carbonate plates (or scales) of uncertain function (coccoliths). Each unicellular alga is enclosed in its own collection of coccoliths, the which make up its exoskeleton- coccosphere.


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3 years ago
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