Sam and his Dad were trying to combat the fire ants in the backyard. They tried several brands of fire ant "killing" chemicals but none worked. Finally, Sam's Dad decided to try an old-time idea: pouring grits on the mounds.

What question could be used to guide Sam's study of fire ants?
A) Why is it so difficult to kill fire ants?
B) If grits are poured in a fire ant mound, then the ants will die.
C) Do grits work better at killing fire ants than commercial products?
D) Will ants eat grits and die when grits are poured in a fire ant mound?

A plant with a 4-petal flower and branched leaves can be deduced to be a type of angiosperm.

Angiosperms, also known as flowering plants, are the largest and most diverse group of plants on Earth. They are characterized by the production of flowers and the formation of fruits that contain seeds. Angiosperms are found in a wide range of habitats, from forests to deserts, and dominate terrestrial ecosystems. Angiosperms exhibit a wide variety of leaf shapes and sizes. They can have simple leaves with a single blade, compound leaves with multiple leaflets or highly specialized leaves like needles in conifers. This diversity of leaf structures contributes to the adaptability and success of angiosperms in different environments. Angiosperms have significant ecological and economic importance. They form the basis of most terrestrial food chains, provide habitat and food for numerous animal species, and contribute to oxygen production and carbon sequestration. Economically, they are a vital source of food, timber, fiber, medicines, and ornamental plants.

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Answer:

I believe the disease is called trichinosis.

Explanation:

Answer:

Africa......there would be fun and a party all the time....great food and wonderful scenerys

Answer:

I would rather live in America cause I do.

Answer:

In this region the temperature increases with height. Heat is produced in the process of the formation of Ozone and this heat is responsible for temperature increases from an average -60°F (-51°C) at tropopause to a maximum of about 5°F (-15°C) at the top of the stratosphere.

Explanation:

Answer:

by c. allowing an organism to adjust to changes in environmental conditions like the presence of certain nutrients like sugars.

Explanation:

A repressible operon is an operon that is normally active, but can be turned off in response to a specific signal. An example of a repressible operon is the trp operon in E. coli, which is responsible for the synthesis of the amino acid tryptophan. This operon is normally active, but can be turned off when tryptophan is present in the environment. This is achieved through a repressor protein that binds to a specific site on the DNA, preventing the operon from being transcribed.

An inducible operon is an operon that is normally inactive, but can be turned on in response to a specific signal. An example of an inducible operon is the lac operon in E. coli, which is responsible for the metabolism of lactose. This operon is normally inactive, but can be turned on when lactose is present in the environment. This is achieved through the binding of a specific protein called the lac repressor to the operator site on the DNA, which prevents the operon from being transcribed. When lactose is present, it binds to the repressor protein and causes a conformational change, releasing the repressor protein from the operator site, allowing the operon to be transcribed.

In summary, the repressible operon is normally active but can be turned off in response to a specific signal. The inducible operon is normally inactive but can be turned on in response to a specific signal. The mechanism by which the operon responds to an environmental cue is through the binding of a specific protein, the repressor protein, to the operator site on the DNA.

Answer:

- Two related plants may produce similar substances that could be used for medicines. - A related plant may provide a cheaper source of a substance. - If a plant becomes extinct, a related plant may provide an alternative source of a substance.  

(No Explanation)

Answer:

Because the offspring are not getting genetic material from another organism.

Explanation:

Answer: In the Cytoplasm

Explanation:

Answer:The evidence to this is because oxygen, is produced by bacteria at that time! If they do That why would they need to use any oxygen? If i didn't get the answer you were asking then well sorry :/

When designing a primer, the ideal length typically falls between a minimum and maximum number of base pairs.

Primers are short DNA sequences that are essential components of polymerase chain reaction (PCR) and DNA sequencing. They serve as starting points for DNA amplification or sequencing by providing a complementary sequence that binds to the target DNA template. The length of a primer is an important factor in primer design, as it affects the specificity and efficiency of the amplification or sequencing process.

The recommended length of a primer generally ranges between 18 and 30 base pairs. Shorter primers may lack specificity and can lead to non-specific amplification, while longer primers may have reduced binding efficiency. The optimal length depends on various factors such as the target sequence, GC content, and the specific application. Additionally, shorter primers are often preferred for PCR, while longer primers may be used in certain sequencing applications.

In conclusion, the ideal primer length typically falls within a range of 18 to 30 base pairs, considering factors such as specificity, binding efficiency, and the intended application of the primer.

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Answer:

mechanical weathering:

ice wedging: does not change rocks composition: abrasion

chemical weathering:

oxidation: changes rocks composition: acid rain

The types of molecules lack hydrophilic domains is option A and option D

The following information should be considered:

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Round worm mesoderm originates from the mesodermal germ layer during embryonic development.

The mesoderm is one of the three primary germ layers that form during early embryonic development, the other two being the ectoderm and endoderm. The mesoderm gives rise to various tissues, including muscles, bone, cartilage, and blood vessels, as well as the reproductive and excretory systems. In round worms, the mesoderm develops into longitudinal muscles and some other tissues, such as the body wall and reproductive organs. The process by which the mesoderm forms in round worms involves a complex series of signaling interactions between various cells and genes. Understanding the mechanisms that regulate mesodermal development in round worms and other organisms is an active area of research in developmental biology, with important implications for human health and disease.

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Answer:

TTGCAT

Explanation:

The base pears for DNA are Adenine: Thymine and Guanyne: Cytosine

Answer:

Interphase, Prophase, Metaphase, Anaphase, Telophase

Explanation:

no explanation for this lol

According to the equilibrium model of island biogeography, a balance between immigration and extinction determines the species richness on an island. This hypothesis has been backed by studies done in the West Indies, which demonstrate that the rate of extinction and immigration control the number of species on an island.

Robert MacArthur and E.O. Wilson originally put out the equilibrium model of island biogeography in 1967. It claims that the equilibrium between immigration and extinction determines the number of species on an island. Migration of species to an island is referred to as immigration, whereas local extinction is referred to as extinction.

This hypothesis has been backed by studies done in the West Indies, which demonstrate that the rate of extinction and immigration control the number of species on an island. For instance, due to the inflow of new species, islands that get more immigrants typically have higher species variety. Moreover, islands with greater rates of extinction tend to have less variety in their species. This is because of the loss of existing species.

Some islands have a higher species diversity than others, which is explained by the balance between immigration and extinction. As a result of their adaptation to the unique environment of each individual island, it also helps to explain why species in the West Indies tend to be more specialized. The equilibrium model of island biogeography, which also explains why some islands remain isolated because they don't receive enough immigrants or lose too many species to extinction, helps to explain why certain islands remain isolated.

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Answer:

Bio-economics.

Explanation:

Bio-economics can be defined as a field of science that typically deals with the study of the interaction between the production of goods or services (economics) and living organisms within a society (biology).

The question "How many people get lung cancer by smoking?" can be answered through Bio-economics.

Basically, this can be achieved through the use of economic indicators or indices such as demand, supply, consumer price index, level of production, etc., to determine the level of consumption of various goods and services.

Answer: In cephalopods, such as octopuses and squids, mucus plays an important role in maintaining the health of their skin and gills. The mucus protects the cephalopod's skin from abrasions, parasites, and infections, and it also helps to keep the gills moist and functional. Additionally, cephalopods use their mucus to control buoyancy and to aid in movement through the water. Overall, mucus is essential for the survival and wellbeing of cephalopods.

Answer:

Mucus can affect cephalopods, such as squids and octopuses, in a number of ways.

Protection: Mucus is produced by the cephalopod's body and can act as a protective barrier against predators and parasites. It can also protect the cephalopod's skin from abrasion and damage from the surrounding environment.

Camouflage: Some cephalopods, such as squids, can manipulate the composition of their mucus to change color and texture in order to blend in with their surroundings. This is called camouflage and is an important survival mechanism for these animals.

Chemical signals: Cephalopods can also use their mucus as a way to communicate with other members of their species. They can secrete chemicals into their mucus that can signal to other cephalopods that they are of the same species or that they are ready to mate.

Mucus can also cause some problems for cephalopods, for example, if the cephalopod is in captivity and the water quality is poor the cephalopod may have difficulty in producing enough mucus to protect itself, which can lead to health problems.

Overall, mucus plays an important role in the survival and behavior of cephalopods, but it can also be affected by the surrounding environment and water quality which can cause health problems.

Answer:

Explanation:

Answer: Increases the risks of soil erosion.

clear cutting can cause the erosion of Increases the risks of soil erosion.

Answer:

The troposphere does contain the most water vapor out of the atmosphere

Explanation:

The troposphere does contain the most water vapor out of the atmosphere because the troposphere is where all the weather conditions like: rain cloudy, hurricanes take place and all the weather conditions have water vapor because most of the weather conditions have clouds, or water vapor.

Because plants release water during the transpiration process, the troposphere contains the most water vapour in the atmosphere. This remains here, and as a result rain forms.

The atmosphere is the earth's outer layer, which is further subdivided into troposphere, stratosphere, mesosphere, and so on. The troposphere is the part of the atmosphere closest to the earth, and it is where rain and clouds form.

The upper stratosphere is less disturbed and more stable than the troposphere, as less wind disturbance is seen here. In this layer, planes and jets are travelling. It has a special layer called the "ozone layer" that protects the earth from the UV light of the sun. The mesosphere is the coolest of these atmosphere layers.

The troposphere has disturbances such as those caused by winds; clouds form here. There are various gases, such as oxygen, carbon dioxide, nitrogen, water vapor, and so on. The water vapour is the result of transpiration from plants and evaporation from water bodies.

Hence, this troposphere layer contains water, because the water above it cannot remain liquid due to the increased temperature of the stratosphere.

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Answer: here

Explanation: If the plankton population decreases, there will be less food available for the shrimp. 2. As a result, the shrimp population may also decrease due to lack of food.

hope this helps

Answer:

A. Selective breeding

Explanation:

Imagine your at school or where ever you wanna be and you see a girl/boy that you really like because of their lips or how great their hair looks or the size of their eyes or what ever else. ( Sorry for some of those very visual images there... ) That's called selective breeding.

Answer:

answer me pls

Explanation:

No, all the fragments are not the same size, If two people have different DNA sequences at specific restriction sites, the restriction enzymes will cut their DNA into various length fragments.

Differences in the number of DNA fragments found between two or more people may also exist. Gel electrophoresis is a method for separating DNA fragments (or other macromolecules like RNA and proteins) depending on size and charge.

Because DNA is negatively charged, it will gravitate towards the positive electrode. As a result, separation will be based on fragment size. Smaller DNA molecules go the fastest and farthest, followed by bigger ones.

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The number of chromosomes in root, stem, and leaf cells would be 40.

Chromosomes are thread-like structures made of protein and a single DNA molecule that transport genomic information from cell to cell. Chromosomes are found in the nucleus of cells in plants and animals.

A chromosome is a long DNA molecule that contains all or part of an organism's genetic material. Most chromosomes have very long thin DNA fibers coated with packaging proteins; the most important of these proteins in eukaryotic cells are the histones.

Genetic diversity is greatly influenced by chromosomal recombination during meiosis and subsequent sexual reproduction. If these structures are incorrectly manipulated, as with chromosomal instability and translocation, the cell may undergo mitotic catastrophe.

Normally, this causes the cell to initiate apoptosis, which leads to its own death, but mutations in the cell can impede this process and thus cause cancer progression.

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Answer:

To study the body structure.

The reason for that, is they want to understand the adaptive changes they have undergone in the eyes of evolution from common ancestors.

Answer:chemical bond energy

Explanation:weegy

Answer:

chloroplasts allow plants to capture the energy of the sun in energy rich molecules.

Answer:

Explanation:

I  think it is [b] plz add me as brainlist