What is fluid mosaic model

The application of DDT as a pesticide result in the storage of the substance in the fats of an organism's body and thus remains toxic for several years. This may cause issues in animals and may ultimately reach all the other species in the food chain.  

So, in order to make a less harmful pesticide, one would need the features, which would make the pesticide to only influence the pests, and would also want it to function more promptly. A pesticide is less harmful if it monitors what one wants to control and does not affect other organisms in the surrounding.  

A less harmful pesticide would only monitor aphids, gypsy moths, or nuisance wasps, but would not kill honey bees, butterflies, praying mantis, or ladybugs. The pesticides, which would not remain in the environment are generally less harmful, in comparison to those that remain in the water, soil, or air for a longer duration.  

DDT's fat solubility and persistence in the environment cause bioaccumulation and biomagnification, harming non-pest organisms. A harmless pesticide should be biodegradable, non-toxic to non-target organisms, and pest-specific. Fungal insecticides can be a good alternative.

The attributes of DDT (Dichloro-diphenyl-trichloroethane) being fat soluble and long-lasting are undesirable in a pesticide because they lead to bioaccumulation and biomagnification in the ecosystem, causing harm to non-pest organisms. This happens as DDT is absorbed and stored in the fat tissues of organisms, and its concentration increases up the food chain causing harmful effects on top predators such as eagles, which experienced thinning of eggshells that led to population decreases.

Ideally, a less harmful pesticide should be biodegradable, non-toxic to non-target organisms, and specific to the pest it is meant to control. It should also not accumulate in the bodies of organisms or in the environment.

Alternative solutions such as fungal insecticides can be considered. Fungal insecticides are usually non-toxic to humans and can kill a wider variety of insects than a chemical pesticide, and even eliminate plant pathogens.

https://brainly.com/question/3819315

#SPJ3

sex brcuz that friction be tense sometimes

issa AUTOTROPH

____________________________________________________________________

Sometimes u should look up the question u might find the answer that wayu you could save some point 4 when u really need em on  a hard question

Final answer:

An autotroph is an organism that can produce its own food from inorganic compounds using energy from sunlight or chemical reactions.

Explanation:

An organism that uses energy to produce its own food supply from inorganic compounds is called an autotroph. These producers are essential to ecosystems because they create organic molecules that all other organisms depend on for survival. There are two types of autotrophs: photoautotrophs, which use sunlight for energy, and chemoautotrophs, which gain energy from chemical reactions.

Its Mid-ocean ridges so D

The correct option is D. mid-ocean ridges. Sea-floor spreading occurs at mid-ocean ridges, where two tectonic plates are moving apart.

These are underwater mountain ranges formed by divergent plate boundaries, where two tectonic plates are moving apart. As the plates separate, magma rises from beneath the Earth's crust to create new oceanic crust, which gradually pushes the older crust away from the ridge, leading to the expansion of the ocean floor.

B) Chemical elements are made up of identical units called atoms.

John Dalton was the one who discovered "all matter is made of atoms". Democritus was the one who suggested that atoms were there but it was not scientifically proven until 2 centuries later when John Dalton proved it.

Answer:

Top 5 Jobs Kidneys Do:

1. Remove wastes and extra fluid

2. Control blood pressure

3. Make red blood cells

4. Keep bones healthy

5. Control pH Levels.

Explanation:

Pls Brainliest

The answer would be a.ensures that identical and complete genetic information is passed on to both daughter cells

DNA replication is an important part of cellular division because correct replication ensures that identical and complete genetic information is passed to both daughter cells. The correct option is a.

DNA replication is the physiological method that generates two identical replicas of DNA from a single original DNA molecule in molecular biology.

DNA replication occurs in all living life forms and is the most important component of biological inheritance.

Each DNA molecule is made up one strand of the original DNA molecule and one strand that has been synthesized (created). As a result, DNA replication is referred to as semiconservative.

DNA includes the instructions that an organism requires to develop, survive, and reproduce. Before cells can divide, their DNA must be replicated.

This ensures that each daughter cell receives a copy of the genome, resulting in successful genetic trait inheritance. DNA replication is an essential process that is conserved across all organisms.

Thus, the correct option is a.

For more details regarding DNA replication, visit:

https://brainly.com/question/16464230

#SPJ2

Elements may be categorized according to element families. Elements are classified into families because the three main categories of elements (metals, nonmetals ... The characteristics of the elements in these families is determined ... more dense than the alkali metals; higher melting points

When a star begins to run out of fuel, the first thing that happens is the shrinking of its core. The core collapses inward due to the lack of energy to counteract gravitational forces. Eventually, this leads to the formation of a white dwarf.

(option c)

The first thing that happens when a star begins to run out of fuel is that the star's core shrinks. As the core runs out of fuel, it can no longer produce enough energy to counteract the gravitational forces, causing it to collapse inward. This collapse leads to the core becoming denser and hotter.

Eventually, the shrinking core may trigger a fusion reaction in the surrounding helium shell, generating a new flow of energy. However, for low-mass stars, the core lacks the mass and temperature to initiate another round of fusion, so the core continues to shrink.

At extreme densities, a new behavior of matter, governed by quantum physics, comes into play. This behavior helps the star achieve a final state of equilibrium, resulting in the formation of a white dwarf.

https://brainly.com/question/12790561

#SPJ3

Answer:

B. C. and D.

Explanation:

apex

The sources of lake water include ocean waves, ground water, and rain runoff. Thus, the correct options are A, B, and C.

A lake is a water body which is surrounded by land from all the sides. They are found in mountains, deserts, plain areas and in seashores. The water in the lakes comes from rain, snow, melting ice, streams, and groundwater. Mostly lakes contain freshwater.

Water from the rain runoff flows through various paths and collects into lakes. It carries various types of small leaves or soil particles which along with it enters into the lake.

The ground water can also form lakes and is the main source of freshwater. The melting snow is also a source of fresh water that flows and enters the nearby ponds and lakes that are present in the nearby areas.

Therefore, the correct options are A, B, and C.

Learn more about Lake water here:

https://brainly.com/question/28982246

#SPJ5

Which describe weathering? Check all that apply.

Weathering means the materials like rocks, soil, woods, etc they break down in due course of time due to certain atmospheric conditions and many other biological factors.

So, according to this definition, we can say that the correct options are -

- creates sediment

- breaks down rock

- carries away fragments

Answer:

I know this is really late but loud noises are an external stimulus and your body responds by usually covering your ears or if it is sudden you react by jumping or something.

Explanation:

In response to loud noises, an external stimulus, the body's auditory system processes sound waves which results in auditory neural signals being sent to the brain. The intensity of the sound affects the magnitude of this response. If the sound is too intense, it can potentially harm the auditory system and lead to hearing loss.

When your body responds to loud noises, it's reacting to an external stimulus. Sound waves or auditory stimuli act on the outer ear (pinna, canal, tympanum). These waves cause vibrations, and the tympanum then sends that energy to the middle ear. From there, the middle ear bones shift, and the stapes transfers the mechanical energy to the oval window of the inner ear (cochlea). Once inside the cochlea, the energy creates a shift in the basilar membrane, thereby bending the stereocilia on the receptor hair cells. This process activates the receptors, which transmit auditory neural signals to the brain, producing the perception of sound. It's clear to see this process is affected by the sound intensity; if the intensity is too high, it could lead to disruptions in hearing, or even hearing loss.

https://brainly.com/question/32880415

#SPJ3

The pressurized seeds and spores have the ability to spread, helping the organism reproduce. In plants, it allows them to reduce competition by flinging the seeds far away so that their offspring don’t compete for resources. For the fungus, it allows the parent to fling the spores into the grass so that when the horse eats them, the life cycle of the fungus continues.

The anterior part of the lower neck, below the larynx (voice box).

a hole happening at consistent interims between portions of myelin sheath along a nerve axon.

The Nodes of Ranvier are gaps in the myelin sheath that contain ion channels, allowing for rapid nerve impulse transmission via saltatory conduction.

The Nodes of Ranvier are essential anatomical features in the nervous system of many animals, including humans. They are regularly spaced gaps between sections of the myelin sheath that encase axons. Within these gaps, voltage-gated sodium (Na+) and potassium (K+) channels are found, which are crucial for the propagation of action potentials. As a result, nerve impulses can 'jump' from one node to the next along the axon, which expedites the transmission of electrical signals. This process is known as saltatory conduction and it greatly increases the speed at which nerve impulses travel.

Joseph Black, born in 16 April 1728 in Bordeaux, France.

Known for his discoveries of magnesium, latent heat, specific heat, and carbon dioxide.

This is a description of the notations that appear at the end of the official transcript.

Answer:

The area of the ocean where photosynthesis occurs is known as the euphotic zone (meaning "good light"). From the standpoint of living organisms, the euphotic zone is probably the most important of all oceanic zones. ... This layer is known as the dysphotic zone (meaning "bad light").

Final answer:

Photosynthetic organisms are found in the ocean's photic zone, where sunlight can penetrate and enable the process of photosynthesis. This also includes the intertidal, neritic, and oceanic zones within the photic zone.

Explanation:

The region of the ocean in which photosynthesis occurs is known as the photic zone. This is the upper part of the ocean into which sunlight penetrates, enabling photosynthetic organisms like phytoplankton to produce energy. It extends down to about 200 meters below the sea surface. Photosynthetic organisms, which are the foundation of the aquatic food web, are not found in significant numbers in the aphotic zone, where there is insufficient light for photosynthesis. Instead, one would expect to find photosynthetic organisms in areas such as the photic zone, the intertidal zone, the neritic zone, and the oceanic zone, contrary to the aphotic zone, deeper abyssal zones, or the benthic realm which is the ocean floor—excluding those areas in the photic zone.

Your answer is A~Cell Wall

The part of the cell that will remain unaffected when a plant cell is placed in salt water is the Cell Wall.

When a plant cell is placed in salt water, the part of the cell that will be unaffected is The Cell Wall. The cell wall is a rigid structure made of cellulose and is responsible for providing support and protection to the cell. Salt water doesn't directly affect the cell wall, but it affects other parts of the cell, causing it to shrink or expand.

When a plant cell is placed in salt water, water molecules move out of the cell due to osmosis, causing the cell to shrink. This happens because the concentration of salt outside the cell is higher than inside the cell, creating a hypertonic environment. The cell membrane, cytoplasm, and vacuole are all affected by the movement of water molecules and can change in size.

https://brainly.com/question/29514416

#SPJ3

Allele.  

-An allele is a form of a gene that determines a specific trait.  

-dd.  

-Traits are passed in discrete units from parent to offspring.  

-He collected detailed information on inherited traits of pea plants.

Hope this helps

The operative unit of hereditary is called genes. Genes are made of DNA and they act as a messenger to make protein for cell structure and functioning.

The correct answer is:

Option A.  Allele

This can be explained as:

Therefore, alleles are the form of genes that determines a specific type of trait.

To learn more about allele refer to the link:

https://brainly.com/question/7602134

organisms are always in competition for resources such as food and water or simply just for space.

Food, water, and more environment. Hope it helps! #Brainiac

Eukaryotic: mitosis: prokaryote: binary fission

Eukaryotic cells reproduce by mitosis while prokaryotes reproduce by binary fission.

Eukaryotes include fungi, plants, and animals and are complex in structure. They have a nucleus, several organelles and more DNA (deoxyribonucleic acid). Eukaryotic cells undergo mitosis; a form of cell division that usually produces two similar daughter cells with the same genetic component as the parent cell. Prokaryotes include bacteria, and archaea, and are quite simple in structure. They do not have organelles or nucleus, but they have only a small amount of DNA. Prokaryotes undergo binary fission; a type of asexual reproduction in which there is replication and segregation of a single DNA molecule.

The correct answer is option C. Humans and mice share a more recent common ancestor than do humans and fruit flies.

The molecular basis of the evolution says that the organisms, which have more similar genes and genetic sequence are more likely to have same most common ancestor. In this case, the similarity between the mice and the humans are more common as compared to the humans and the fruit flies. So, the human and the mice share more recent common ancestors.

Answer:

C

Explanation:

The answer is cohesion.

Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. ... Two of the most relevant mechanisms of evolutionary change are: Natural Selection and Genetic Drift.

A farmer crosses two kinds of corn. He produces a new, better tasting type of corn       is the answer

Answer: It can form polymers like carbohydrates, lipids, proteins, and nucleic acids.

Explanation:

The carbon is an important element which forms an important ingredient of the bio molecules like carbohydrates, lipids, proteins these are the important components of the food. The lipids form the main part of the cell membranes which selectively restricts and allow the passage of the molecules and ions in and out of the cells. The proteins are the building blocks of life they perform functions in cell metabolism. The nucleic acid includes the genetic material which is inherited by the offsprings from their parents. All these bio-molecules are necessary for the survival of the living organisms.