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Molodets [167]
3 years ago
14

A/an _____ agent is a substance that has the potential to cause another substance to be oxidized.

Biology
1 answer:
ludmilkaskok [199]3 years ago
5 0
B , an oxidizing agent is a substance that has the potential to cause another substance to be oxidized
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A _____ is a measure of how much a typical serving size of a particular food raises blood glucose.​
kirill115 [55]
The correct answer is glycemic load.
In particular, glycemic load estimates the amount of carbohydrates in a serving of food and how each gram of these carbohydrates can affect the blood glucose. It is a measure commonly used in weight-loss programmes and in dietary programs used to treat insulin resistance. It has been shown that common spikes of blood glucose and insulin levels, increase the risk for diabetes.
6 0
3 years ago
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I really need help with this one
Viktor [21]

Answer:

The prey population, the rabbits, and the predator population, the foxes, directly rely on one another. As the rabbit population grows, more food becomes available for the fox population to grow, therefore the fox population grows. The rabbit population now has more predators, but an assumed constant amount of food, causing the rabbit population to fall. The rabbit population falls and less food becomes available for the fox population, so the fox population falls. Both the predator and prey species are majorly responsible for the carrying capacities of the other species.

5 0
3 years ago
What is the expected phenotypic ratio for a one-factor cross of two hybrid organisms?
s344n2d4d5 [400]
You would expect a 3:1 ratio of dominant to recessive.
Two heterozygous, or hybrid, organisms with the genotypes, say, Aa, could yield these 4 offspring: AA, Aa, Aa, and aa. The first 3 have dominant phenotypes, and the last has recessive.

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6 0
3 years ago
Give several advantages to passive solar heating uses and active solar system applications
Rina8888 [55]

Answer:A material designed to produce passive solar energy can achieve energy savings of 70%. In addition to this great advantage, we show you what are the main benefits that passive solar energy can bring us:

Reduced maintenance cost. Since it has no external equipment to harness the energy, the maintenance required will be practically nil.

It is 100% renewable energy. It does not emit polluting gases and helps to maintain the environment, in addition to being an inexhaustible source which is the sun and we can always have it.

Energy and economic savings.  

Reduction in the cost of electricity and gas bills.  

Compatible with solar panel installations. In fact, it is currently considered as a complementary technology.  

APPLICATIONS :Active solar energy is mainly used to obtain sanitary hot water, heating systems and to transform solar radiation into electrical energy.

Active solar technology is also used to produce air currents for ventilation or cooling and to store heat for later use. In any of these processes, the use of pumps and fans is required.

Other uses of active solar energy are:

Water purification.

Drying.

Evaporation.

Distillation.

Solar batteries.

Solar chargers.

Energy for street lighting, traffic signals and roads.

6 0
3 years ago
Discuss the events of meiosis, and compare and<br> contrasthow meiosis differs from mitosis.
Arisa [49]

Answer:

Meiosis It is one of the ways of cell reproduction. This process is performed in the cells in the sex cells. It is a process of cell division in which a diploid cell (2n) undergoes two successive divisions, with the ability to generate four haploid cells (n). This process is carried out in two nuclear and cytoplasmic divisions, called first and second meiotic division or simply meiosis I and meiosis II

Explanation:

Phases of Meiosis

Two successive cell divisions occur in meiosis, Meiosis I (Reduction) and Meiosis II (Division). Meiosis produces 4 haploid cells. Meiosis is also known as reduction division.

In Meiosis I, the level of ploidy is reduced from 2n to n while in Meiosis II the "set" of remaining chromosomes is divided into a process similar to mitosis (division). The biggest difference in the process occurs during Meiosis I.

- MEIOSIS I: Prophase I

During mating, a key event occurs in the matching of homologous chromosomes.

- Metaphase I

In Metaphase I the tetrads line the equator of the cell. The spindle fibers "stick" to the centromere of each homologous pair and subsequent events are similar to mitosis.

- Anaphase I

During Anaphase I the tetrads separate and the chromosomes are dragged to the opposite poles by the spindle fibers. The centromeres in Anaphase I remain intact.

- Telophase I

Telophase I is similar to mitosis, except that in the end each "cell" has only one group of replicated chromosomes. Depending on the species, the new nuclear membrane can be formed (or not). Some animals can divide their centrioles during this phase.

Telophase may be absent in some species. If there is, it is followed by an interface called interkinesis; Unlike the mitotic interface, there is no duplication of genetic material since each chromosome already has two chromatids. The other difference is that these sister chromatids are no longer genetically identical, due to the cross-linking phenomenon.

- MEIOSIS II: Profase II

During Prophase II, the nuclear membrane (if formed during Telophase I) dissolves, and the spindle fibers appear, as in the prophase of mitosis. Actually, Meiosis II is very similar to mitosis.

- Metaphase II

Metaphase II is similar to that of mitosis, with chromosomes in the equatorial plane and spindle fibers sticking to the opposite faces of the centromere in the kinetochore region.

- Anaphase II

During Anaphase II, the centromere divides and the then chromatids, now chromosomes, are secreted to the opposite poles of the cell.

- Telophase II

Telophase II is identical to Telophase of mitosis. Cytokinesis separates the cells.

Comparison of Mitosis and Meiosis :

- Mitosis maintains the level of ploidy while meiosis reduces it.

- Meiosis can be considered as a phase of chromosome number reduction followed by a slightly different mitosis.

- Meiosis only occurs in relatively few cells of a multicellular organism, while mitosis is more common.

4 0
3 years ago
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