A longer lifespan and improved functioning of most systems in the body are all physical benefits a person can attain from physical ______.

Answer:

uracil

Explanation: looked it up

Uracil.

I took the test

Answer:

Algae have chloroplasts that contain chlorophyll A and B, giving them a bright green color, as well as a necessary pigments beta carotene(red-orange) and xanthophyllis (yellow)is stacked thylakoids.Plants look green because they absorb red light most efficiently and the green light is reflected.

The probability associated with the range of lethal morphine blood levels is 0.99. The probability that somebody dies of the blood morphine concentration is 0.3 pg/ mL will be 0.0103.

A probability is a number which reflects the chance or likelihood that a particular event will occur. Probabilities can be easily expressed as the proportions which range from 0 to 1, and they can also be expressed as the percentages ranging from 0% to 100%.

Mean (u) = 2.5,

Standard deviation (σ) = 0.95

(a) P(0.05 < x < 4.95)

P(0.05-2.5/0.95 < x < 4.95 -2.5/0.95)

P(-2.5789 < x < 2.5789)

P ( x < 2.5789) - P(< -2.5789)

0.9950 - 0.0050

= 0.99

(b) within 1 S.D Range values are

1, S.D= (μ ± σ) = 2.5 ± 0.95 = (1.55, 3.45)

2, S. D =  (μ ± 2σ) = 2.5 ± 2 (0.95) = (0.6, 4.4)

3, S. D = (μ ± 3σ) = 3(0.95) = (-0.35, 5.35)

(c) P(x < 0.3)

P(Z < 0.3-2.5/ 0.95)

P(Z<-2.3158)

P = 0.0103

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Answer:

Good works

Explanation:

Chapter 3 Questions

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a

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Primary succession happens after a catastrophic event destroys a formerly occupied region and leaves no life behind.

a) True

b) False

Primary succession happens after a catastrophic event destroys a formerly occupied region and leaves no life behind.

a) True

b) False

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c

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Secondary succession occurs after an event damages a community but does not wipe it out such as a forest fire.

c) True

d) False

Secondary succession occurs after an event damages a community but does not wipe it out such as a forest fire.

c) True

d) False

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The Environment

Invasive Species

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The statement "A keystone organism is vital because many others depend on it for survival" is definitely true.

The keystone species may be defined as a species within a community that has a role out of disproportion to its abundance.

If a keystone species is removed from any community, it may result in the decline of species richness of that particular community.

Therefore, the statement "A keystone organism is vital because many others depend on it for survival" is definitely true.

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Answer:

C.Climax communities are more stable than primitive communities.

The child development stuff is well known to the doctors and the nurse, and they advise mothers during the time of the pregnancy to take care of the baby in different ways.

The medical field employs a variety of personnel, including doctors, experts, nurses, caregivers, and others, but the doctor and nurse roles are directly related to patients. They take care of patients of different types, such as those with minor to major health issues.

Hence, the child development stuff is well known to the doctors and the nurse, and they advise mothers during the time of the pregnancy to take care of the baby in different ways.

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Answer:

plants move towards to the source of light

Answer:

equinox

Explanation:

It occurs 2 times a year where the sun shines exactly on the equator on September and March

The genotype of a pea plant with purple flower color would depend on the specific alleles present.

Let's assume that the allele for purple flowers is represented by "P" (dominant), and the allele for white flower color is represented by "p" (recessive).

If the pea plant has the genotype "PP" (homozygous dominant), it means it has two copies of the dominant allele for purple flowers. In this case, the phenotype (observable characteristic) would be purple flower color.

If the pea plant has the genotype "Pp" (heterozygous), it means it has one copy of the dominant allele for purple flowers and one copy of the recessive allele for white flower color. In this case, the phenotype would still be purple flower color because the dominant allele "P" masks the expression of the recessive allele "p".

However, if the pea plant has the genotype "pp" (homozygous recessive), it means it has two copies of the recessive allele for white flower color. In this case, the phenotype would be white flower color, as the absence of the dominant allele allows the expression of the recessive allele.

Therefore, to determine the genotype and phenotype of a specific pea plant with regard to flower color, we would need to know the specific alleles present in that plant.

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Answer:

The respiratory system's main purpose is to move fresh air into your body and moving waste gasses out (like carbon dioxide when you breathe out)

Answer:

C

Explanation:

The main reason that Wegener's hypothesis was not accepted was because he suggested no mechanism for moving the continents. He thought the force of Earth's spin was sufficient to cause continents to move, but geologists knew that rocks are too strong for this to be true.

Answer:

Involve the replication DNA before division

Respuesta:

La fecundación es un proceso de unión de gametos, llamados también células haploides.

La correcta es la D.

Explicación:

El proceso por el cual es posible la reproducción y la continuación de nuestra especie se llama fecundación. La fecundación se produce cuando el gameto masculino, el espermatozoide, toma contacto con el gameto femenino, el ovocito.

Los gametos son células haploides, lo que significa que tienen 23 cromosomas - a diferencia de las células somáticas, que son diploides y tienen dos juegos de 23 cromosomas (46 en total). Esto es importante para que cuando se fusionen ambos gametos, la suma de los cromosomas sea siempre 46.

La manera en la que los gametos obtienen 23 cromosomas en lugar de 46 es gracias al proceso de meiosis.

Cuando se produce la fecundación, la célula resultante será el cigoto que, a lo largo de aproximadamente 40 semanas se desarrollará en el útero de su madre.

Based on the evolutionary tree shown, mammals share a most recent common ancestor with lizards, snakes, crocodiles and birds.

A branching diagram or tree illustrating the evolutionary links among distinct biological species or other things based on similarities and differences in their physical or genetic traits is known as a phylogenetic tree (also known as an evolutionary tree or phylogeny). One evolutionary tree represents all life on Earth and shows their shared ancestry.

Any member of the group of vertebrate animals in which the young are fed with milk from particular mammary glands of the mother is referred to as a mammal (class Mammalia). Mammals are recognised from other species by a number of distinctive characteristics in addition to their recognisable milk glands. Although many whales no longer have hair other than in the prenatal stage, hair is a characteristic mammalian feature.

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Answer: auricular surface

Explanation:

The bony landmark of the sacrum that makes up the lateral surface and articulates with the ilium is called the auricular surface.

The auricular surface is given the name because it looks like the shape of the ear. It is cartilage coated and articulate by the sacrum. It should be noted that below the auricular surface, we have the preauricular sulcus.

A fossil that has one-sixteenth the normal production of carbon-14 to carbon-12 is most likely very old. This is because carbon-14 has a relatively short half-life of 5730 years, meaning that after this amount of time, half of the amount of carbon-14 in an organism or object would have already decayed.

Since the fossil being discussed has one-sixteenth of the normal production of carbon-14 to carbon-12, this would suggest the fossil is at least 8 times the half-life, or 45,840 years old. Carbon-14 is necessary to measure the age of an object, and due to the fact that this fossil has only one-sixteenth of the normal carbon-14, it can be deduced that it is very old.

It is also possible that the fossil is much older than this calculation, but because of the short half-life of carbon-14, any other amounts which may have been present before the 45,840 year mark has decayed away. In conclusion, a fossil that has one-sixteenth the normal production of carbon-14 to carbon-12 is estimated to be 45,840 years old or older.

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Answer:

option 3

Explanation:

The concept of punctuated equilibrium suggests that evolutionary change occurs in rapid bursts of speciation, followed by periods of stability or stasis, where species remain relatively unchanged for extended periods.

Based on this concept, the environmental condition that would MOST LIKELY result in the appearance of punctuated equilibrium in the fossil record is option 3) An environment that experiences rapid large-scale destructive change. This type of environment can create new habitats, destroy existing ones, and isolate populations, leading to the rapid evolution of new species in response to the changing conditions. The fossil record would, therefore, show periods of stability, interrupted by relatively sudden appearances of new species.

Option 1, an environment that remains in a state of stasis, would result in a lack of evolutionary change, making punctuated equilibrium less likely.

Option 2, an environment that undergoes steady changes over time, may lead to gradual evolutionary changes, but not necessarily to the rapid bursts of speciation that define punctuated equilibrium.

Option 4, an environment with many transitional fossils, may indicate a transitional period between two different types of environments, but it does not necessarily imply punctuated equilibrium.

According to the research, the correct answer is Option A. The statement "Bile contains enzymes for digestion." is incorrect regarding bill.

It is the product of hepatic secretion and is made up of bile salts, cholesterol, phospholipids and bilirubin, acting as an emulsifier for fatty acids.

In this sense, it is collected by the hepatic duct and in interdigestive moments it is stored in the gallbladder.

Therefore, we can conclude that according to the research, bile is secreted by the liver and is made up of water, composed of bile salts, proteins, it doesn't contain enzymes for digestion.

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An inspiration strip is run on lead II for 10 seconds, with the patient holding his or her breath. option (b) is the correct answer.

This is also called electrocardiography. A recording of the electrical activity of the heart is made using electrocardiography, a procedure. It is a heart electrogram, which is a voltage versus time graph of the electrical activity of the heart created using electrodes applied to the skin.

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Answer:

C- when someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently

D- when someone’s pancreas hormone increases every time they eat, but decreases when they aren’t eating

E- when a person takes calcium supplements so a gland will stop secreting a hormone that pulls calcium from the bones

Explanation:

I got it right on my test!

ur welcome

The examples of negative feedback among the given options are 1. A child whose thymus gland is building an immune system that gets stronger each day.

3. When someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently.

4. When someone's pancreas hormone increases every time they eat but decreases when they aren't eating.

Negative feedback is a regulatory mechanism in the body that works to maintain homeostasis by counteracting or reversing changes in the body's internal environment.

It helps to keep various physiological processes within a narrow range and prevent excessive fluctuations.

1, the child's thymus gland building an immune system that gets stronger each day is an example of negative feedback. As the child grows, the thymus gland stimulates the production of immune cells (such as T cells) to strengthen the immune system, which is a response to the body's needs.

3, when someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently, it demonstrates negative feedback.

4, when someone's pancreas hormone increases every time they eat but decreases when they aren't eating, it also illustrates negative feedback. After a meal, the pancreas releases insulin to facilitate glucose uptake by cells, reducing blood sugar levels.

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Your question is incomplete, but most probably your full question was.

Which are examples of negative feedback? Select three options.

1. a child whose thymus gland is building an immune system that gets stronger each day.

2. when someone’s adrenal gland reacts to a scary movie by secreting hormones that make the heart beat quickly.

3. when someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently.

4. when someone’s pancreas hormone increases every time they eat, but decreases when they aren’t eating.

5. when a person takes calcium supplements so a gland will stop secreting a hormone that pulls calcium from the bones

Answer: Abdominal obesity

Explanation: Abdominal obesity is the form of obesity most strongly associated with the metabolic syndrome.

Answer:

Compound microscopes use lighting to make the image two dimensional. It`s the most commonly used, too.

Answer:

Growth media are used to grow microorganisms in a lab setting. Some media are liquids; others are more solid or gel-like. A growth medium provides nutrients, including water, various salts, a source of carbon (like glucose), and a source of nitrogen and amino acids (like yeast extract) so microorganisms can grow and reproduce. Ingredients in a growth medium can be modified to grow unique types of microorganisms. For example;  Nutrient agar   is a general-purpose, non-selective growth media,   Chocolate agar   is a non selective, enriched growth medium with red blood cells that have been lysed by heat, Columbia Nalidixic Acid (CNA) and  Mannitol Salt agar   are selective agar for Gram positive organisms and  MacConkey    agar is a selective agar for Gram negative organisms, Mannitol salt agar MSA is a commonly used selective and differential growth medium that encourages the growth of bacteria that ferments mannitol,  Nutrient broth   is an example of a liquid that supports growth of a variety of organisms.

Explanation:

Growth media are classified based on their composition as:

1. General Purpose Media: These type of media support the growth of non-fastidious organisms, that do not require special nutrients for growth, and they also serve as a base for certain modified media. An example is the nutrient agar

2. enriched media: these media, like the name implies, is one that has been modified by the addition of special growth factors and nutrients called enrichment. An example is chocolate agar where lysed blood is added to nutrient base agar, when the blood cells are lysed slowly at 80°C, nicotinamide adenine dinucleotide (factor V or NAD) and hemin (factor X), are released into the medium, and these support growth of certain fastidious organisms like Haemophilus influenza bacteria.

3. Selective media: These kinds of media contain substances that support the growth of certain organisms while in turn preventing the growth of others due to the presence of certain inhibitory factors. Examples are: Mannitol Salt Agar, which supports growth of Gram-positive organisms and MacConkey agar, which supports the growth of Gram-positive organisms

4. Non Selective media: These type of media have no biases against the growth of certain organisms, that is, they do not contain certain inhibitory factors that impede the growth of certain organisms.

5. Differential media: These media contain chromogenic agents that change colour and helps to differentiate one organism from the other, making for ease of identification especially for organisms with similar properties.

Finally, a broth is a growth medium that fo not contain agar, hence, it is liquid and not solid.

If higher immunity leads to a lower number of eggs produced by females in Dlugosch's Small Octopus, then there will be a negative correlation between immunity level and egg production.

A K approach would be more likely to develop if the illness causes the octopus population to decline. Resources are few in a tiny community, therefore long-term stability and survival are prioritized over rapid population expansion. The K approach emphasizes having fewer kids while allocating more resources to ensuring their survival and welfare. In a small population, the following two characteristics connected to a K strategy might be more prevalent:

Increased parental care: Parents invest more time and resources in raising a smaller number of offspring to increase their chances of survival and reproductive success.

Delayed maturation: Individuals take longer to reach reproductive maturity, allowing them to invest more time in growth, development, and building up resources before reproduction.

These traits help ensure the survival and success of the limited number of offspring in a small population, aligning with the K-selected life history strategy.

In this figure, the y-axis represents the number of eggs produced by females, and the x-axis represents the immunity level of the octopuses. The bars or lines would show a decreasing trend as the immunity level increases, indicating a negative relationship between immunity and egg production.

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The most inferior portion of the pharynx is the hypopharynx. Therefore, such statement is false.

Answer:

In the beginning, God created...

Explanation:

only Jesus Christ (who is God, robed in flesh) is able to create souls. Only humans have souls...that is why we are precious to Him...we are created in His image...sorry, I’m not meaning to seem like I’m preaching at you...because I’m not trying to...but I’m just telling you the truth.

During the fed phase, actions like glycogenesis, lipogenesis, setiety, and insulin secretion occur. During the fasting phase, actions like cortisol secretion, glucagon secretion, hunger, and glycogenolysis occur.

There аre three mаin metаbolic stаtes of the body: аbsorptive (fed), postаbsorptive (fаsting), аnd stаrvаtion. During аny given dаy, our metаbolism switches between аbsorptive аnd postаbsorptive stаtes. Stаrvаtion stаtes hаppen very rаrely in generаlly well-nourished individuаls.

The аbsorptive stаte, or the fed stаte, occurs аfter а meаl when our body is digesting the food аnd аbsorbing the nutrients (cаtаbolism exceeds аnаbolism). The postаbsorptive stаte, or the fаsting stаte, occurs when the food hаs been digested, аbsorbed, аnd stored. We commonly fаst overnight, but skipping meаls during the dаy puts our body in the postаbsorptive stаte аs well. During this stаte, the body must rely initiаlly on stored glycogen.

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Answer:

"The scientific method describes the processes by which scientists gain knowledge about the world. It's characterized by six key elements: questions, hypotheses, experiments, observations, analyses, and conclusions. These elements are interrelated steps, so they don't always function in the same order."

Explanation:

google

The scientific method is the process that involves various steps to develop knowledge about the natural world that has characterized the development of science.

The scientific methods involve the following steps in order:

There is more than one scientific method used worldwide as scientists can add steps, take out steps, revise, therefore, there can not be only one single universal scientific method.

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Given a DNA sequence of AGTCCTCGA, the complementary strand of DNA that will be made during replication would be TCAGGAGCT.

Replication is a biological process during which cells make copies of their DNA in preparation for cell division. Without making copies of DNA, cells may not be able to divide.

During replication, the double helix structure of DNA unwinds through the activities of enzymes and each strand serves as a template for making a daughter strand containing the complementary sequence of the original parent strands.

The replication follows the base pairing rules of DNA established by Chargaff. According to this rule, Adenine (A) can only pair with Thymine (T) while Guanine (G) can only pair with Cytosine (C).

Thus, the complementary base sequence that would be the replication copy of the strand shown in the illustration would be as follows:

AGTCCTCGA

TCAGGAGCT

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