Where in an embryo are the instructions located for how to build organs

Answers

Answer 1
Answer: All the instructions are encoded in the DNA within the nucleus. We don't fully understand how the zygote, with the same genetic material as our adult cells, instructs the newly developing embryo to form tissues and organs, but it is all in the DNA.
Answer 2
Answer: It's cell differentiation signals produced by nucleus of cells. In an embryo, there are unspecialized pluripotent embryonic stem cells that rely on cell signals to differentiate into organs, even before the embryo is formed, in the blastocyst stage, there are 2 layers of cells, the inner cell mass is destined to form internal organs, and the outer ball of cells forms skin cells, intestines etc

Related Questions

The theory of plate tectonics describes _______.
The three stages of cellular respiration are glycolysis, Krebs cycle, and the electron transport chain. When do cells exhibit all these stages?
Which traits are characteristic of multicellular organisms? Choose all answers that are correct.a. different cells for different functions b. develop into specialized cells after they are formed c. all cells are smaller than those of single-celled organisms d. all cells are the same size and shape
A solution tested in the laboratory shows pH 14. Which of the following statements best describes this solution? A. It is a highly acidic solution with a high hydrogen ion concentration. B. It is a highly alkaline solution with a high hydrogen ion concentration. C. It is a highly basic solution with a high hydrogen ion concentration.
How does meiosis create genetic diversity?

Is a dinosaur fossil living or nonliving?

Answers

Fossils are non living things, so the dinosaur fossil are non living thing.

What are Fossils?

A fossil is defined as the preserved remains, imprints or traces of something that once lived which includes the bones, shells, exoskeletons, stone traces of animals or microbes, amber, hair, petrified wood, and DNA from a past geological age. The totality of fossils is known as the fossil record.

Fossils are formed in many different ways by non-living things but are mostly formed when a living organism (such as a plant or animal) dies and is quickly buried by sediment (such as clay, sand or volcanic ash). Fossils show a tangible connection to life, landscapes, and climates of the past.

Thus, Fossils are non living things, so the dinosaur fossil are non living thing.

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The fossil is the bones of the dinosaur.  It is nonliving as the dinosaur is dead.

Who introduced the five kingdom classification of organisms ?​

Answers

Answer:

R.H. Whittaker introduced the five kingdom classification of organisms .

A food chain is made up of interrelated food webs.

Answers

False, it's the other way round. Food webs consist of many food chains joined together.

The currently used binomial nomenclature was developed by _____. Ray Linnaeus Aristotle

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Linnaeus. Carolus Linnnaeus is a Swedish naturalist whose lasting achievement is binomial nomenclature; it is a system of naming and classifying plants and animals according to genus and species.

The currently used binomial nomenclature was developed by Carl Linnaeus.

Carl Linnaeus, a Swedish botanist, physician, and zoologist, is credited with developing the modern system of binomial nomenclature. He introduced this system in his book "Species Plantarum" published in 1753. In binomial nomenclature, each species is given a unique two-part name consisting of the genus name followed by the species name. For example, humans are known as Homo sapiens, where "Homo" is the genus and "sapiens" is the species.

Linnaeus' system of classification revolutionized the way organisms were named and organized. Before his work, organisms were given long, descriptive Latin names that were difficult to remember and often varied between regions. Linnaeus' binomial nomenclature provided a standardized and systematic way to name and categorize living organisms, making it easier for scientists to communicate about species and study biodiversity.

This naming system also reflects the hierarchical nature of biological classification, with species being grouped into genera, genera into families, families into orders, and so on. It has become the universally accepted method for naming and categorizing living organisms and remains an essential tool in modern biology and taxonomy.

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In maintaining the large land empire of Russia, what was arguably the main difficulty?A. ethnic divisions
B. inexperienced leaders
C. lack of industrialization
D. lack of natural resources

Answers

Correct answer is A. Ethnic Divisions

Answer:

its ethnic divisions

Explanation:

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Differentiation switches certain genes on and off to create specialized cells. true false

Answers

Its true, differentiation switches certain genes on and off to create specialized cells.