Help with bio homework pleaseee!

Answer options from study sheet:
a. With the help of modern technology, scientists may refine their theories.
b. Previous classification systems provide evidence that scientists use to refine their data
c. Frequently, scientists decide to change the present classification system because they do not like it.
d. New evidence derived from species allows the scientists to observe and make new connections

Answer: phenylalanine.

Explanation:

The tRNA with an anticodon GAA should attach the amino acid phenylalanine.

Answer:

Explanation:

In general, the more tightly the DNA is wound around the histone proteins in a chromosome, the more difficult it is for RNA polymerase to access a gene and make a copy of that gene. This is because the tight winding of DNA around histones creates a compact structure called chromatin, which can restrict the access of RNA polymerase and other transcription factors to the gene. Therefore, genes that are tightly packed within chromatin are generally less accessible for transcription, while genes that are less tightly packed are more accessible for transcription.

Answer:

Three major types of insect development: a) Ametabolous development typified by the silverfish, b) Hemimetabolous development typified by the cockroach; in some hemimetabola such as termites and grasshoppers there may be more than one stage with wing pads that could be called nymphal; c) Holometabolous development 

The correct answer is option C) exploration of different niches, avoiding competition between life stages.

Each phase of development presents a different habitat and niche, which prevents competition between species, that is, intraspecific competition. In this way, the effectiveness of the animal within its environment is increased, as well as its adaptation to the environment.

The other alternatives highlight stages of development that exist, but are not related to the increase in the number of species or to the justification presented.

Answer: tatagtacgccc

Explanation:

it’s eventually going to get better dw

Answer: D. What effects do cell phones have on student performance?

Answer:

They conduct electricity.

Explanation:

Electrolytes are substances that conduct electricity when dissolved in water or melted. They are typically ionic compounds that dissociate into positive and negative ions in solution. These ions are free to move and carry an electrical charge, allowing them to conduct electricity.

Answer:

True.

Explanation:

Arable land is defined as land that is suitable for farming, and is typically used for the production of crops and livestock feed. The term "arable" is often used to describe land that has been cultivated, plowed, and is ready for planting. This land is usually nutrient-rich and capable of supporting a variety of crops such as wheat, rice, corn, and soybeans, as well as forage crops for livestock such as alfalfa, clover, and grasses.

Farmers rely on arable land to produce food and feed for animals, and this land is a crucial resource for meeting the world's growing demand for agricultural products. Arable land is a finite resource, and it is important to use it efficiently and sustainably to ensure that future generations have access to the resources they need to produce food and feed for a growing global population.

C) Gel electrophoresis. To compare DNA samples taken from a crime scene and a suspect, forensic analysts employ the laboratory process known as DNA fingerprinting.

Despite the fact that 99.9% of the human genome is the identical throughout the population, individual differences can be seen in the remaining 0.1% of human DNA. These changeable DNA sequences, also known as polymorphic markers, can be electrophoresed on a DNA gel to create distinctive DNA banding patterns on an agarose gel. Individuals can then be distinguished or correlated using the DNA bands.

You will be tasked with examining the DNA of two suspects that were identified from a crime scene using human DNA evidence (such as skin cells or hair).

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The weather at location X on Day 1 and Day 2 is option D, Day 1: cold and rainy Day 2: clear and sunny as shown on the map.

Weather condition refers to the state of the atmosphere at a particular time and place with respect to variables such as temperature, humidity, wind speed and direction, air pressure, cloudiness, and precipitation. It describes the current atmospheric conditions and can change rapidly over short periods of time.

Other examples of weather conditions include, Precipitation (rain, snow, sleet, hail), Humidity (dry, moist), Wind (breezy, windy, calm), Cloud cover (sunny, cloudy, overcast), Atmospheric pressure (high pressure, low pressure).

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Answer:

The statement is incorrect.

Succession is a gradual and predictable change in the species composition of an ecosystem over time, starting from bare rock or sand and ending in a stable, self-sustaining community called a climax community.

In the scenario described, the deposition of new sand and the formation of new dunes can provide new habitats for pioneer species, which are the first to colonize disturbed areas. These species are usually opportunistic and fast-growing, such as grasses and shrubs. Over time, as these species die and decompose, they contribute to the formation of soil, which allows for the establishment of other species, such as trees and woody plants.

However, since the scenario involves a coastal region, the newly formed sand dunes can be highly vulnerable to erosion and flooding, which can interrupt the successional process and prevent the establishment of a climax community. In addition, the deposition of new sand can also affect the chemical and physical properties of the soil, which can limit the growth of certain plant species and affect the food web of the ecosystem. Therefore, it is not certain that the region will undergo succession to become a climax community.

Answer: raw hamburgers

Explanation: E- coli is commonly transmitted to humans through contaminated foods such as raw or undercooked meat products, raw milk or raw contaminated vegetables.

Answer:

Since there is no specific article mentioned in the question, I will provide a general answer.

The importance of a special habitat can be conveyed through various words and phrases depending on the context. Some examples of words and phrases that may help the reader understand the importance of a special habitat are:

Unique

Endangered

Fragile

Ecosystem

Biodiversity

Rare

Sensitive

Threatened

Niche

Keystone species

Habitat loss

Conservation

Preservation

Sustainability

Irreplaceable

These words and phrases may be used to describe the ecological, scientific, or cultural value of a special habitat and emphasize the need to protect it from human activities and other threats that may cause harm or destruction.

I Hope This Helps!

Answer:  zygospores

Explanation:

Zygomycota produces zygospores, which germinate into new hyphae.

Zygomycota produces the zygospores, which germinate into new hyphae.

The production of the zygospores is a distinguishing feature of members of the division Zygomycota which is prompted by releases of certain chemicals like trisporic acid, that make the aerial hyphae that act as a sexual organ come in contact and produce zygospores. it is the spores produced by fungi and protists.

There are so many types of fungi that are included in the division of Zygomycota. one type of fungi is black bread mold which usually spreads over bread or other types of food and sends the hyphae inwards to gather nutrients.

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Answer:

Parent 1 Genotype: SsYyParent 2 Genotype: SsYyFOIL to determine gametes:SsYy: SY, Sy, sY, sySsYy: SY, Sy, sY, syParent 1 gametes: SY, Sy, sY, syParent 2 gametes: SY, Sy, sY, syOffspring phenotype ratios:9/16 will have spherical and yellow seed (SSYY, SSYy, SsYY, SsYy)3/16 will have spherical and green seed (SSyy, Ssyy)3/16 will have dented and yellow seed (ssYY, ssYy)1/16 will have dented and green seed (ssyy)

Once alcohol is in the bloodstream it will reach the brain in a few seconds to minutes, depending on various factors such as the amount and concentration of alcohol consumed, body weight, metabolism, and other individual factors.

Once alcohol is in the bloodstream it will reach the brain in a few seconds to minutes, depending on various factors such as the amount and concentration of alcohol consumed, body weight, metabolism, and other individual factors.

Once alcohol enters the bloodstream, it can quickly cross the blood-brain barrier and affect the brain and nervous system. The effects of alcohol on the brain depend on the amount and rate of consumption, and can range from mild impairment of judgment and coordination to more severe effects such as loss of consciousness and even death in extreme cases.

Chronic alcohol use can also lead to long-term changes in brain function and structure, including cognitive impairment and increased risk of developing certain neurological and psychiatric disorders.

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There is no publicly available information about Kobe Bryant's blood type.

I'm afraid there is no public info on this

Answer:

A. valid medical use but with severe limitations and high potential for abuse and dependence, for example cocaine and morphine. Schedule 2

B. maximum possibility for abuse, no valid medical use, for example heroin and LSD. Schedule 1

C. wide medical use and low potential for abuse and dependence, for example Valium and Xanax. Schedule 4

D. very low potential for abuse and wide medicinal use, for example cough medicines. Schedule 5

E. less potential for abuse and established medical use, for example barbiturates and steroids. Schedule 3

Explanation:

Expained

Answer:

During the process of metamorphic rock formation, there is a transformation or change in the mineral composition and texture of the original rock due to high heat, pressure, or chemically active fluids. As a result, the system goes through a significant change.

The system may be considered "stable" again once the metamorphism process has completed and the resulting metamorphic rock has reached equilibrium - meaning that there are no longer any changes occurring within the rock due to external factors. The stability of a metamorphic rock depends on various factors such as the mineral composition, temperature, pressure, and chemical environment. Once these factors balance out and reach a steady state, the system can be considered stable again.

Answer: The change that occurs is the eroding, or breaking down of a rock into sediments, the movement and deposition of the sediments, and the compaction and cementation of the sediments to form a new rock. The system is stable again once the new rock is formed.

Answer:

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Answer:

(a) A yucca moth caterpillar feeds on the yucca plant and pollinates the yucca plant. mutualism

(b) Lice feed harmlessly on the feathers of birds. commensalism

(c) A cowbird removes an egg from a robin's nest and replaces it with one of its own. commensalism

(d) An orchid plant grows on the branch of a tree. The tree remains healthy.​ commensalism

Answer:

A: Mutualism

B: Parasitism

C: Commensalism

D: Commensalism

Explanation:

Mutualism is a relationship between two species of organisms in which both benefit from the association.

Commensalism is a type of relationship between two species of a plant, animal, fungus, etc., in which one lives with, on, or in another without damage to either.

Parasitism is a relation between organisms in which one lives as a parasite on another.

PART A: The yucca plant is necessary for the yucca moth larvae to live because it is their only source of sustenance. The moth pollinates the plant, and in return, the plant provides sustenance for the moth, creating a harmonious partnership.

PART B: Different types of biting lice, fleas, and louse bugs are commensals because they graze safely on avian feathers and the skin flakes shed by animals.

PART C: A female cowbird looks for other species' female birds that are busy depositing eggs in a quiet manner. After locating an appropriate host, the cowbird will break or take one (or more) eggs from the resident bird's nest while it is gone and substitute them with one (or more) of her own.

PART D:

Commensalism is the term used to describe the interaction between plants and orchids. When two species coexist, one of the species benefits while the other is unchanged.

Answer:

It can dissolve more things than any other substance.

Explanation:

Water is considered the universal solvent because it can dissolve more substances than any other liquid. This is because of its unique molecular structure and properties. The water molecule is polar, which means it has a slightly negative charge on one end and a slightly positive charge on the other end. This polarity allows water molecules to attract and surround charged particles, such as ions, and polar molecules, such as sugars and amino acids.

My mother has blood type AB and my father has blood type O.If I have blood type O, which of the following is the likeliest: A. My father is not my father

If the father has the blood group O, his genotype is IOIO or (ii). Because the mother is of blood type AB, her genotype is IAIB. Combinations of these two groups might result in offspring with genotypes IAIO or IBIO, giving them blood groups A or B, respectively.

The father's genotype, or possible genes he may pass on, is O O, while the mother's is A B. The children's genotypes would be AO & BO.

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Answer:

a

Explanation:

becusw it ahfhhjddjdudjsjejdjdjdjdhshssjs

The identified pattern that is seen here is that : pairing bases (AT and GC) are both very close in numbers . The values are sometimes off by just 0.5

The Chargaff rule, also known as Chargaff's ratios or base pairing rules, states that in a double-stranded DNA molecule, the amount of adenine (A) is equal to the amount of thymine (T), and the amount of guanine (G) is equal to the amount of cytosine (C). This is sometimes expressed as A=T and G=C.

Erwin Chargaff, an Austrian-American biochemist, discovered this rule in 1949 by analyzing the base composition of DNA from various species. He found that the amounts of A, T, G, and C in DNA differed between species, but within a species, the ratios between A and T, and between G and C, were always roughly equal.

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Answer:

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Explanation:

Types of connective tissue include bone, cartilage, fat, blood, and lymphatic tissue.

Competition- An interaction to gain a share of a limited resource. An example is an interaction between vultures, hyenas and a dead hippo.

When resources are insufficient to meet the demands of all the organisms living in a community, competition occurs when organisms of the same species or other species use the same resources.

Within a species, either all individuals get some of a resource they need, like food or space, or some get enough to meet their needs while others, who are shut off from the resource, perish or are compelled to live in a less desirable or marginal location. The majority of the time, young people in a population suffer negative effects.

The less likely it is that two different species may coexist in the same location, the closer their requirements must be. Although they may be forced into direct competition when resources are low, species with comparable requirements can occasionally coexist in the same region if they differ in behavioural ways like feeding patterns, breeding preferences, or activity periods. When two species coexist in small populations, their members frequently have smaller-than-average bodies or have a poor reproductive rate.

Interdependence- An interaction between two individual organisms, an interaction between animal or plant species.

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Answer:

The Scientific Revolution was a time of great change in human history, lasting from the 16th to the 18th century. During this period, scientists and philosophers began to challenge long-held beliefs about the natural world and instead relied on empirical evidence and experimentation to understand it. This approach led to important advancements in fields such as physics, astronomy, and biology, and established the foundation for the modern scientific method.

Answer: Increases

Explanation:

The greater the size of the masses, the greater the size of the gravitational force

Answer:

If an object increases it mass, it increases its gravitational pull.

Because of their grazing habits, which limit the amount of fuel available for fires and support the preservation of a diverse ecosystem with a range of grass heights and tree densities, wildebeest in the Serengeti are a keystone species.

Wildebeest help new, diverse plants grow by grazing vegetation that could otherwise serve as wildfire fuel and reducing its overall amount. As a result, other species, such birds and butterflies, have better habitat quality, making wildebeest a keystone species.

A keystone species is a type of plant or animal that is essential to the health of an ecosystem. Withif we lost our keystone species, the ecosystem would either vanish or undergo major alteration.

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