Which is the definition of an embryo?

Answers

Answer 1

Answer: An embryo is a multicellular diploid eukaryote in an
early stage of embryogenesis,ordevelopment. Ingeneral,an embryo develops from a zygote, the single cell resulting from the fertilization of the female egg cell by the male sperm cell.

Answer 2

Answer: here is the definition

an unborn or unhatched offspring in the process of development.

Related Questions

A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt and mucus away from the lungs. Which of the following instruments would be best, and why?a. a scanning electron microscope, because it can be used to observe whole cells without slicing themb. a transmission electron microscope, because it has high resolution
atoms of metallic elements can form ionic bond,but they are not very good at forming covalent bonds. why?
During DNA replication DNA is split apart into two strands as the new DNA strands are created what is the function of DNA polymerase
Which lists types of materials from most conductive to least conductive?a. insulator, semiconductor, conductor, superconductorb. superconductor, conductor, semiconductor, insulatorc. conductor, insulator, semiconductor, superconductord. semiconductor, conductor, superconductor, insulator
Jenna says that an example of homeostasis is when body temperature is maintained at about 37° C. Allen says homeostasis is when breathing rate increases along with exercise. Who is correct? A. Only Allen is correct. B. Both are correct. C. Only Jenna is correct. D. Neither is correct.

Describe the sequence of events during a blood clot.

Answers

Answer: Hemostasis includes three steps that occur in a rapid sequence:

Explanation: 1) vascular spasm, or vasoconstriction, a brief and intense contraction of blood vessels; (2) formation of a platelet plug; and (3) blood clotting or coagulation, which reinforces the platelet plug with fibrin mesh that acts as a glue to hold the clot.

or:

The Blood Clotting Process

Injury. A small tear in a blood vessel wall (for example, from a cut on the skin or an internal injury) causes bleeding.

Vessel constriction. To control blood loss the blood vessel narrows (called constriction), thus limiting blood flow through the vessel.

Platelet plug. ...

Fibrin clot.

In sexually reproducing organisms, mutations can be passed on to the organism's offspring if the mutation occurs in what

Answers

The answer is the germ cells.

Mutation can occur in any type of the cell - either germ cells or somatic cells. Germ cells give rise to the gametes. If the mutation occurs in these cells, the change will be present in gametes, too. This way mutation can be passed on to the next generation. On the other hand, somatic mutations (mutations in the somatic cells) are not passed on to the next generation.

WHAT IS THE FUNCTION FOR MEIOSIS AND MITOSIS?

Answers

Meiosis reproduces sex cells mitosis recreates body cells

How do earth's spheres interact to cause weather/climate?

Answers

the atmosphere transfers heat energy and moisture across the Earth. Incoming solar radiation (insolation) is redistributed from areas in which there is a surplus of heat (the equator) to areas where there is a heat deficit (the North and South Pole). This is achieved through a series of atmospheric cells: the Hadley cell, the Ferrel cell and the Polar cell (Figure 2). These operate in a similar way to, and indeed interact with, the ocean conveyor.

For example, as the oceans at low latitudes are heated, water evaporates and is transported poleward as water vapour. This warm air eventually cools and subsides. Changes in temperature and CO2 concentrations can lead to: changes in the size of atmospheric cells (in particular, the Hadley cell is susceptible to these alterations); warming in the troposphere; and disproportionately strong warming in Arctic regions. The strong interactions between ocean and atmospheric dynamics, and the significant feedback mechanisms between them, mean that climate researchers must consider these Earth components as interlinked systems. The necessity to assess ocean-atmospheric changes at the global scale has implications for the way in which research is conducted. It is only by integrating palaeo evidence of past changes, with present day monitoring, and projected models,

Which biomolecule is made of amino acids

Answers

Answer:

Proteins

Explanation:

Proteins are polymers made up of strings of amino acids. Proteins serve many functions in organisms including transport of molecules, structure, cell adhesion and as signaling molecules such as hormones.

Proteins are made from amino acids, which are the building blocks of any protein, chained together in a specific order through peptide bonds.

what would a scientist most likely observe in the liver cells of an individual who is a heavy drinker of alcoholic beverages

Answers

Answer:

Steatosis hepatitis and fibrosis\cirrhosis.

Explanation:

Chronic and excessive alcohol consumption produces a wide spectrum a hepatic lesson the most characteristic of which are steatosis hepatitis and fibrosis\cirrhosis.

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This system consists of a network of primary capillaries in the hypothalamus, a group of small vessels that travel down the stalk, and a complex of secondary capillaries in the anterior pituitary. It is the ______ portal system.