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2 years ago

The earth is sometimes described as a giant magnet. True or false?

1 answer:

4 0

True. The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a "magnet."

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Cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. if 9 in 10,000 newbor

avanturin [10]

The expected frequencies are f(A1) = 0.9700, f(A2) = 0.0300 according to the Hardy-Weinberg model. For biologists studying a large flatworm population in the lab, which Hardy-Weinberg condition is most difficult to meet there is no mutation. It is called a genetic disorder in homozygous recessives that causes death during the teenage years.

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3 years ago

Provide a potential hypothesis for the research topic and

kherson [118]

Answer:

i think that the higher the body temperature the higher the cellular respiration

Explanation:

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2 years ago

ermentation reactions A. completely oxidize glucose to carbon dioxide and water B. often require the reactions of glycolysis to

goldenfox [79]

Answer:

E. two of the above are correct

Explanation:

Fermentation reactions are processes that occur without the presence of oxygen and promote the release of energy (ATP) anaerobically. For these reactions to occur, glycolysis and reduction of pyruvate must occur.

These reactions allow the regeneration of NAD + that is necessary for the breakdown of glucose during the process called glycolysis, which is primarily responsible for the production of ATP. NAD + is regenerated from NADH.

With that, we can conclude that the correct options are:

B. often require the reactions of glycolysis to provide energy as ATP

C. supply NAD for the oxidation of glucose

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2 years ago

What effect has breast cancer research had on society? People who have gene mutations have more treatment options. People now fa

storchak [24]

Answer:

1# Questions: People who have gene mutations have more treatment options.

2# Question: 20 amino acids

Explanation:

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3 years ago

The organisms that harness non-biological energy and convert it to biologically relevant/useful energy are called __ 1 __ _. The

mamaluj [8]

Answer:

The organisms that harness non-biological energy and convert it to biologically relevant/useful energy are called __autotrophos or producers_. The organisms that consume these are called _herbivores_ (it should end in -ores) which occur at the __second_ trophic level. The number of trophic levels that any ecological system will primarily dependent on the _consumer_ organisms.

Explanation:

In the trophic web occurs energy transference through organisms occupying different levels in the chain. Each level feeds on the preceding one and becomes food for the next one. The first link is occupied by autotroph organisms, which are the producer. The following links are the consumers: herbivores are primary consumers and feed on producers. Carnivores are secondary consumers and feed on herbivores, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.

Every link has an effect on the superior links and the immediately anterior link, meaning that whenever one of the links changes, the other ones will be affected.

Autotrophs or producers synthesize inorganic substances, such as light, and turn them into organic matter according to their own needs. These organisms are photoautotrophs, such as plants, or chemoautotrophs. They occur at the first trophic level.

Heterotrophs are those incapable of producing their own organic matter, so they feed on producers, depending on them to get proteins and energy. In the trophic chain, heterotrophic organisms occupy the first, second, or third consumer level, after producers. These animals can be herbivorous, carnivorous, omnivorous, hematophagous, ichthyophagous, and etcetera. All of them depend on autotrophic organisms.

In the particular case of herbivores, they occur at the second throphic level feeding on producers and being eaten by carnivores.

In general, most trophic chains are composed of 4 or 5 levels, depending on the number of consumers present, and the energy transference between levels.

8 0

2 years ago