In the context of the difference threshold, _____ is the principle that two stimuli must differ by a constant proportion to be perceived as different.

Answers

Answer 1

Answer:

The answer is Weber's law

Explanation:

In the context of the difference threshold, Weber's law is the principle that two stimuli must differ by a constant proportion to be perceived as different.

- Weber's Law states that "for the difference to be perceptible, two stimuli must differ by a constant proportion, not a constant amount".

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If it wasn't for___reproduction, the passing of mutations from one generation to the next would continue.
This is a survival adaptation by which an animal blend in and is hidden in its surrounding
In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of years as a result?A.The chances for survival of the population are reduced. B.New food sources are discovered and become the regular diet. C.Individuals that are well suited to the environment reproduce, and those that have lesser adaptations die before they reproduce. D.The environment adapts by providing more resources to the growing population, increasing the chances of survival for individuals within the habitat.
Why do classification systems change over time?

The ______ is a colorless mass of soft, gelatin-like material that fills the eyeball behind the lens.

Answers

Vitreous Humor is the correct answer

Plant cells undergo photosynthesis to produce glucose, a usable form of chemical energy. The energy produced by plants becomes the base of an energy pyramid. Given the situation seen above, what reactant is missing in order for photosynthesis to occur? A) water B) ozone C) chlorophyll D) radiant energy

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The situation shown consists of a picture with the sun emitting light energy; and a plant both absorbing carbon dioxide and emitting oxygen. The missing reactant in order for photosynthesis occur is water. Plants absorb water from the soil (through roots) and absorbs ligth energy from the sun (through leaves). The energy absorbed is used to split water molecules into H2 and O2. Then H2 combines with CO2 to form glucose. The answer is the option A) water.

Several hours following death the muscles of the body stiffen, a condition commonly referred to as rigor mortis. What is the cause for the stiffened muscles?Myosin heads are not attached to actin filamentsMyosin heads are attached to actin filamentsActin degenerationMyosin degenerationBuild up of ATP due to lack of circulation

Answers

Answer:

Myosin heads are attached to actin filaments

Explanation:

During the process of muscle contraction, myosin heads are attached to actin filaments. ATP is necessary for their release and for the muscle relaxation.

In rigor mortis, myosin heads continue binding with the active sites of actin proteins. This occurs because after death, there is no production of ATP and consequently, the muscle is unable to relax until further enzyme activity degrades the complex.

As a result of urban sprawl, displaced wildlife often end up venturing into populated areas in search of food. True False

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Answer: True

The distribution of the native indigenous population of human to a wildlife habitat is a common practice seen among the villagers and has also been adapted by the urban societies . They move to forests in search of habitat, obtaining fuel food cooking food and for other needs. This displacement has affected the wildlife considerably. The animals which are dislocated from their natural habitats often found to be located in urban areas where they can become threat to the lives of the human lives and for themselves.

By 1500, what was the dominant religion in West Africa?

Answers

Answer:

Islam was the dominant religion in West Africa in 1500.

Explanation:

From 639-708 C.E, Arab Muslims captured North-Africa.

Arab Muslims want to bring Islam to west Africa too, but they knew it would be quite hard to cross the Sahara desert.

Islam soon reached Ghana through Muslim missionaries and traders.

Ghana's king did not convert to Islam but he allowed Muslims to build homes and mosques within his kingdom.

Muslim merchants and traders colonized in "Kumbi" which were the huge market place of the time.

soon the Muslim community grew and they had 12 mosques.

Islam is the predominant religion of theWest African interior and the far west coast of the continent (70% ofWest Africans); and was introduced to the region by traders in the 9thcentury. Islam is the religion of the region's biggest ethnic groups by population.

When Mendel crossed purebred purple flowering plants (PP) with purebred white flowering plants (pp), what were the flower colors of the resulting offspring? 25 percent white and 75 percent purple 50 percent white and 50 percent purple 100 percent purple 100 percent white

Answers

The answer is 100 percent purple

Let P be dominant allele for purple flowers and p recessive allele for white flowers. So purebred purple flower has two P alleles and its genotype is PP and purebread white flower has two p alleles and its genotype is pp. Since P is dominant over p, when found together like in heterozygous plants (Pp), the flowers will express dominant allele and will be purple.
So, a cross between purebred purple flowering plants (PP) with purebred white flowering plants (pp) will have 100% of the offspring with genotype Pp and purple flower color.

Parents: PP x pp
Offspring: Pp Pp Pp Pp

When Mendel crossed purebred purple flowering plants (PP) with purebredwhite flowering plants (pp), the flower colors of the resulting offspring is: 100 percent purple.

WHAT IS MENDEL CROSS:

Gregor Mendel, who is referred to as the FATHER OF GENETICS, crossed pea plants using several of their characters.

He crossed purebred purple flowering plants (PP) with purebred white flowering plants (pp) to obtain offsprings that were all purple flowered (Pp).

Therefore, it can be said that when Mendel crossed purebred purple flowering plants (PP) with purebred white flowering plants (pp), the flower colors of the resulting offspring is: 100 percent purple.

Learn more about Mendel cross at: brainly.com/question/4441612

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Which of the following statements best defines the term operon?A. An operon is a region of RNA that consists of the coding regions of more than one gene.B. An operon is a region of DNA that codes for sugar-metabolizing enzymes.C. An operon is a region of DNA that codes for a series of functionally related genes under the control of the same promoter.D. An operon is a region of DNA that consists of a single gene regulated by more than one promoter.

Blood that leaves the heart for the body passes through a large blood vessel called thea. pulmonary vein. b. pulmonary artery. c. aorta. d. vena cava.