What’s the answer to this?

Which additional natural resource would be MOST IMPORTANT to a society wanting to become industrialized? a) dry land b) strong w

RideAnS [48]

Answer:

Rare materials

Explanation:

These raw materials are to be used for proper development and industrialization of this society

8 0

3 years ago

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All vertebrate embryos have _____ at some point during embryonic development, indicating a common evolutionary ancestor

aivan3 [116]

All chordates chare four structures. One of the is the tail. All vertebrate embryos have _a tail__ at some point during embryonic development, indicating a common evolutionary ancestor.

<h3>What is the relationship between chordates?</h3>

The evolutionary relationship between species is reflected in the similarities or differences in the patterns of embryonic development.

All chordates belong to the Chordata phylum, and share four main characteristics,

Notochord, which is a precursor of the dorsal spine.
Nerv cord, dorsally located and parallel to the notochord.
Pharyngeal clefts
Tail

All chordates express these structures at some point in their lives, especially in the early stages of embryogenesis. Many of them can be lost with animal development and become vestigial structures.

The tail is a vestigial structure in many vertebrates.

Vestigial structures are those body parts, genetically determined, that have been retained during the evolution of the taxonomic group but have lost or reduced their original function.

Such vestigial structures were plenty functional in the ancestors of new species, but now are typically degenerate, stunted, or rudimentary, and tend to be much more variable than homologous non-vestigial parts

All vertebrates develop a tail at some point in their embryonic life, even humans. However, this structure lost its original function in several species, so after a period of embryogenesis, this tail disappears, and its forming vertebras get fussed with each other composing the coccyx.

In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, for instance, the coccyx has lost this function but is still an area of muscle insertion.

The correct option is Tail.

All vertebrate embryos have _a tail_ at some point during embryonic development, indicating a common evolutionary ancestor.

You can learn more about chordates at

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3 0

2 years ago

Jeffrey Arnett, the psychologist who created the term emerging adulthood, believes that the developmental period between adolesc

Mashutka [201]

Jeffery Arnett is a physiologist who coined the term "emerging adulthood." This has previously been known as; delayed adulthood, transition age youth, youthhood, and the twixter years. He believes that the period between adolescence and adulthood is when the person reaches adulthood but doesn't have children, have sufficient funds, or have their own home. He believes it starts at 18 and ends around 25 years of age. He thinks this is when people are still looking for love, make money to spend on recreational activities, and trying to develop their own identities. This theory is highly controversial and has been contested by developmental psychologists.

8 0

2 years ago

During a pertussis infection, the pathogenic bacterium Bordatella pertussis produces tracheal cytotoxin, which destroys cilia. W

fiasKO [112]

Mucus would most likely accumulate in the respiratory tract as a result of ciliary destruction.

Pertussis (whooping cough) is a highly contagious respiratory tract infection. A severe hacking cough is followed by the a high-pitched breath intake that sounds like "whoop" in many people. Before the vaccine, whooping cough was thought to be a childhood disease. Whooping cough now primarily affects children who have not received the full course of vaccinations, as well as teenagers and adults whose immunity has waned.

Deaths from whooping cough are uncommon, but most commonly occur in infants. That is why it is critical for pregnant women and others who will have close contact with an infant to be immunized against whooping cough. The best way to avoid pertussis is to get vaccinated. Check that you and your loved ones have received their pertussis vaccines.

To know more about the Pertussis, here

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5 0

1 year ago

Question 4

Juliette [100K]

Answer:

In eukaryotes, thousands of chemical reactions are able to take place in separate compartments called organelles.

Explanation:

Organelles are specific cellular structures that are the means of compartmentalizing the various functions that occur within cells.

Examples of organelles and their functions are:

- Nucleus: contains DNA and in it occur the replication of this molecule and its transcription into RNA.

- Rough endoplasmic reticulum: protein synthesis and conjugation of these molecules occurs.

- Mitochondrion: houses all oxidative phosphorylation reactions and the electron transport chain for ATP synthesis to occur.

The organelles are then the structures that allow the development of the multiple functions that a cell has.

The other options are not correct because:

Bacteria is a prokaryotic organism.
Prokaryote refers to simple organisms that lack organelles.
Proteins are biomolecules that allow the structure and function of living beings.

8 0

2 years ago