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4 years ago

Define Sexual Reproduction

2 answers:

5 0

The production of new living organisms by combining genetic information from two individuals of different types of gender . In most higher organisms, one sex (male) produces a small motile gamete which travels to fuse with a larger stationary gamete produced by the other (female).

Alona [7]4 years ago

3 0

Sexual reproduction involves two parents and produces offspring that are genetically unique. During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote. Meiosis is the type of cell division that produces gametes.

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While studying enzyme kinetics in the lab, a scientist observed that the rate of a reaction involving enzyme amylase increased a

andriy [413]

Answer is: The enzyme amylase was saturated, as all its active sites were occupied by substrate starch.

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4 years ago

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Which term describes the study of the functions of the structures of the body?

valentina_108 [34]

Physiology is studying the function of a certain body part.
Anatomy is learning about the relationship between body parts. 
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3 years ago

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An analysis of a cell indicated a high lipid content in the membranes, a high protein content in the vesicles being mobilized an

Anon25 [30]

The option that best illustrates the similarity and difference in the elemental makeup of these molecules is that carbohydrates and lipids both contain carbon, hydrogen, and oxygen atoms, while the proteins contain nitrogen in addition to those three elements. That is option B.

Carbohydrates are macromolecule found is food substances that plays a vital role of energy supply to the body.

It is made up of chemical elements such as carbon,hydrogen and oxygen in the ratio of 1:2:1.

Lipid is another macromolecule found in food which is an energy reserve for the body.

Lipids are made up of elements seen in carbohydrates such as carbon, hydrogen and oxygen but contain many more hydrogen atoms than oxygen atoms.

Proteins are another type of macromolecule found in food which helps in body building and repair of worn out tissues.

Proteins are made up of elements seen in carbohydrates and lipids with the addition of nitrogen atom.

Therefore, carbohydrates and lipids both contain carbon, hydrogen, and oxygen atoms, while the proteins contain nitrogen in addition to those three elements.

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3 years ago

Which stsemen is one of the three jparts of celll theory

Gnoma [55]

Cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction. With continual improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century. This discovery is largely attributed to Robert Hooke, and began the scientific study of cells, also known as cell biology. Over a century later, many debates about cells began amongst scientists. Most of these debates involved the nature of cellular regeneration, and the idea of cells as a fundamental unit of life. Cell theory was eventually formulated in 1839. This is usually credited to Matthias Schleiden and Theodor Schwann. However, many other scientists like Rudolf Virchow contributed to the theory. It was an important step in the movement away from spontaneous generation.

The three tenets to the cell theory are as described below:

All living organisms are composed of one or more cells.

The cell is the basic unit of structure and organization in organisms.

Cells arise from pre-existing cells.

The first of these tenets is disputed, as non-cellular entities such as viruses are sometimes considered life-forms.

Microscopes

Discovery of cells

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3 years ago

Which method involves breeding animals in a controlled environment? a. inbreeding b. captive breeding c. outbreeding d. crossbre

zhannawk [14.2K]

The answer is captive breeding.

Captive breeding involves breeding animals in a controlled environment.

What is captive breeding?

The technique of keeping plants or animals in confined spaces, such as zoos, botanical gardens, and other conservation facilities, is known as captive breeding, sometimes known as captive propagation. It is occasionally used to support species that are under threat from human activities including climate change, habitat loss, fragmentation, excessive fishing or hunting, pollution, predation, illness, and parasitism.

Relatively little is known about the circumstances necessary for effective breeding in many species. The success of a captive breeding program may depend on knowledge of a species' reproductive biology. Captive breeding programs have the potential to preserve some species from extinction, but they depend on a variety of criteria, including genetic, ecological, behavioral, and ethical considerations.

To learn more about captive breeding click on the link below:

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1 year ago