Substances can enter and exit the cell through the membrane through passive or active transport. The processes of endocytosis and exocytosis ensure, respectively, the entry and exit of macromolecules and other particles.
In which two ways do substances cross the membrane?The selective passage of substances across the membrane occurs in two different ways:
active transport, when it involves the use of energy.passive transport, when it does not involve the use of ATP.With this information, we can conclude that substances can enter and exit the cell through the membrane through passive or active transport. The processes of endocytosis and exocytosis ensure, respectively, the entry and exit of macromolecules and other particles.
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Disease cannot be transmitted through blood by:
intravenous-drug use.
body piercing.
tattooing.
protected contact.
Answer:
d) protected contact..
Which statement about vacuoles is true?
Only plant cells contain vacuoles.
Only animal cells contain vacuoles.
Vacuoles are larger in plant cells than in animal cells.
Vacuoles are larger in animal cells than in plant cells.
Explanation:
Vacuoles are larger in plant cells than in animal cells.
Food web starting with sun and pointing to grasshopper and squirrel. Grasshopper pointing to squirrel, wolf, and snake. Squirrel pointing to wolf, snake, and bird. Wolf pointing to decomposition with worms and mushrooms. Snake pointing to wolf and decomposition with worms and mushrooms. Bird pointing to decomposition with worms and mushrooms. Decomposition pointing to the sun stating soil nutrients.
If we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have?
answer fast please!!!!!
If we removed the wolf, snake, and hawk from this food web, the number of grasshoppers and squirrels would increase.
What is food web?All the food networks in a single ecosystem make up a food web. Each organism in an ecosystem is a link in a number of food chains. Energy and nutrients can go along different food chains as they move through the ecosystem. A food web is made up of all the linked and overlapping food systems in an ecosystem.
The trophic levels are divisions into which organisms in food webs are categorized. These levels can be roughly categorized as producers (first trophic level), consumers, and decomposers (last trophic level).
Example of producer-plants
Consumers-Primary consumer-example:squirrel and grasshopper
Secondary consumer-example:wolf
Decomposers-example:worm
Hence,the removal of secondary consumer leads to increase in number of primary consumers.
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Answer:
The number of primary consumers would increase. (aka, the squires, and grasshoppers)
Explanation:
Why not producers?
Because if their aren't no Secondary consumers (aka, wolf, snake, and hawk) then the primary consumers won't get eaten and keep increasing and increasing, the producers will decrease because it keeps gets eaten by the increased primary consumers.
By the way i took the test and got it right!!
Good luck, I promise it is right!!! :)
Question 4 of 25
Which muscle is highlighted below?
A. Obliques
B. Rectus abdominus
C. Trapezius
Answer: B. Rectus abdominus
The highlighted muscle in the image is the rectus abdominus. Therefore, option B is correct.
The rectus abdominus is a paired muscle located in the front of the abdomen. It extends vertically from the pubic bone to the sternum (breastbone). It is a long, flat muscle that plays a key role in core stability, posture, and various movements of the trunk, such as flexion (bending forward) and stabilization.
The rectus abdominis is also known for its characteristic appearance in individuals with well-developed abdominal muscles, often referred to as having a "six-pack."
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Which substance is an example of organic matter?
an example of organic matter is sugar because it is the best option
¿What is Kingdom Monera?
Kingdom Monera is a biological kingdom that comprises prokaryotic organisms, which are unicellular and lack a nucleus and other membrane-bound organelles.
Monera is one of the five traditional kingdoms of living organisms, which also include Protista, Fungi, Plantae, and Animalia.
The Monera Kingdom includes bacteria and archaea, and some scientists propose that these groups should be split into two separate kingdoms due to their significant molecular and structural differences.
Bacteria can be found in various environments, including soil, water, and inside animals, and they play an important role in many ecological processes, archaea, on the other hand, are often found in extreme environments, such as hot springs and deep ocean hydrothermal vents.
What do scientists call a disease caused by a pathogen that is easily passed between people?
Infectious diseases are caused by microorganisms like viruses, bacteria, fungi, or parasites and can spread from person to person.
What are pathogens?A pathogen is an organism that causes disease in its host, and the severity of the disease symptoms is referred to as virulence.
Infectious diseases are caused by microorganisms like viruses, bacteria, fungi, or parasites and can spread from person to person.
Thus, the disease that scientists call caused by a pathogen that is easily passed between people is infectious diseases.
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What is inter-cropping vegetable farming ? What are its advantage
Explanation:
What is inter-cropping farming ?
= The growing of two or more crops of different characteristics and requirements at the same time on the same plot of land is called inter-cropping. The process of growing different vegetables in the inter-cropping system is called inter-cropping vegetable farming.....
hope it help ya~
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What is DNA? (2 points)
a
A picture representation for predicting what offspring will look like.
b
Identical to RNA.
c
Contains the information for making proteins in the cells and ensures that the information is passed to new cells and new offspring.
d
Cannot be altered.
Contains the information for making proteins in the cells and ensures that the information is passed to new cells and new offspring. Thus, the correct option is C.
What are proteins?Proteins are big, complex molecules that play a number of important tasks in the human body. They are essential for the structure, function, and control of the body's tissues and organs, and they do the majority of their job in cells.
DNA (deoxyribonucleic acid) is the molecule that conveys genetic information for an organism's development and function. DNA is made up of two connected strands that loop around each other like a twisted ladder, giving it the shape of a double helix. The backbone of each strand is made up of sugar (deoxyribose) and phosphate groups that alternate. Each sugar has one of four bases attached to it: adenine (A), cytosine (C), guanine (G), or thymine (T).
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9
B There are two missing words in each question Put them in
Example:
8
your parents got jobs and, if so, what they do?
Have your parents got jobs, and if so, what do they do?
When trains for London leave and how much a return ticket?
6
7
Where you buy your new mobile phone and how much it cost?
Where you last night and what you do?
Where I buy a cheap computer in this town and how I get there?
Answer:
that's all I can.
hope it helps. good day.
Which one is not the indirect hazard of air pollution
Answer:
a cataract
Explanation:
a cataract is an eye lens becomes cloudy thingy--it just happens with age, it's not related to air pollution at all.
Tobias has mononucleosis. Mononucleosis is a disease that tires and weakens the body. It is caused by a contagious virus that is transferred through direct contact. Which would be the best explanation of how Tobias contracted mononucleosis?
It's caused by a contagious contagion that's transferred through direct contact. Which would be the stylish explanation of how Tobias contracted mononucleosis? Tobias no way exercised and was more susceptible to the contagion. As a joker, Tobias has a better chance of getting mononucleosis. Tobias inherited the gene from his parents. Tobias drank from a water root that was defiled.Mononucleosis is an contagious illness that’s generally caused by the Epstein- Barr contagion( EBV). It’s also called mono or “ the kissing complaint. ” one can get the contagion through kissing as well as effects like participating drinks or flatware. It’s contagious, but less likely to catch mono than other common ails like a cold wave
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Answer:
D
Explanation:
Infectious mononucleosis, also called “mono,” is a contagious disease
Review the chart, which shows the population sizes of three African animals in 1990 and in 2000.
Population Estimates of Animals in Africa in 1990 and in 2000
1990 2000
Lions 100,000 47,000
Cheetahs 50,000 7,500
Zebras 15,000 2,500
Which explanation is best supported by the numbers in the chart?
A. Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetahs.
B. The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
C. Overhunting of lion and cheetah populations has led to a decline in the food source population.
D. Lion and cheetah populations compete for the food source of zebras, and cheetahs outcompete lions.
The explanation which is best supported by the numbers in the chart is that Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetahs. Thus, the correct option is A.
What is Competition in the population?Competition in population may be defined as the existence of two or more same or different species that are actively fighting over the same resources and factors that they disseminate.
Competition and predation are the two types of species interaction through which the population of species either increases or decreases.
According to the given chart, it is noticeable that the population drop in predator cheetah and lion populations because of the reduction in zebra lowering population but the in cheetah population is additionally than that of the lion.
Therefore, the correct option for this question is A.
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Which of these best explains how solid waste can harm wildlife?
A. Aquatic animals drown after getting tangled in fishing line.
B. Bacteria are introduced to break down hydrocarbons in an oil spill.
C. The mercury contained in fish builds up in animals that eat the fish.
D. An increased growth in microorganisms results in oxygen depletion.
Solid waste can harm wildlife by the mercury contained in fish builds up in animals that eat the fish. That is option C.
What is effects of solid wastes?Solid wastes are those materials that are discarded from factories and facilities which may contain chemicals that are able to pollute the water bodies.
When they are being washed into the water body, they build up in the body of fishes in a process called bio magnification.
Bio magnification is a process whereby chemicals that are washed into the water bodies accumulate on the body of animals (wildlife) through eating of aquatic animals.
When animals feed on these fishes, it harms their health with time.
Therefore, Solid waste can harm wildlife by the mercury contained in fish builds up in animals that eat the fish.
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which of the following is an enzyme required by the process of rephosphory,to create ATP? A) AD Pase B)AT Pase C)Polymerase D)AT synthase ?
Answer:
D) ATP Synthase (Hopefully that was an option, I'm not sure if option D intentionally left out the P)
Explanation:
ATP synthase is responsible for synthesizing ATP through the phosphorylation of ADP. This is the result of mechanical energy being generated by the proton motive force (H+ ions moving into the matrix). The asymmetrical rod changes the affinity for ATP, ADP, and inorganic phosphates of each subunit in the F1 subunit, allowing ATP to be produced/prepped/released. In all, this enzyme is very important in the entire process of oxidative phosphorylation.
What was the problem with this genetic engineering solution
The potential for greater economic disparity and higher human misery, as well as the potential for extensive eugenics programs and dictatorial control over human life, are among the social and political concerns of genetic engineering. In certain situations, moral danger overrides technological risk without a doubt.
What is genetic engineering?Genetic engineering, often known as genetic alteration, is a technique that modifies an organism's DNA using technology developed in labs. This could entail altering a single base pair (A-T or C-G), erasing a section of DNA, or incorporating new DNA.
Millions of workers will be out of work in a few years if multinational businesses decide to replace the national products of Third World nations with their own biotechnology compounds. And the unintended result is guaranteed, not possible, or likely if governments decide to create racial programs and monitoring systems based on genetic engineering advances. The risk is not that the decision-makers underestimated the effects of their decisions, but rather that they act in an unethical manner.
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Describe how the design of a preparation relates to the types of supplemental materials
used in restorative dentistry.
The design of a preparation relates to the types of supplemental materials
used in restorative dentistry is discussed below:
What is the role of the oral dentist?Tooth extractions are carried out by dental and oral specialists for various reasons. A painful tooth or a tooth that has been significantly affected by decay may be the problem. Sometimes a dentist will extract a tooth to make room for dental prostheses or other devices.
When the situation becomes increasingly complicated, an oral expert rather than a dental professional may need to extract a tooth. They typically remove wisdom teeth or third molars.
The dental professional or specialist will initially numb the tooth to gradually relax the patient. Even though tooth extraction may still be distressing, it may be essential for relieving dental pain and preventing further problems.
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Which was Venter’s contribution to science?
Answer: Craig Venter was a geneticist who led the first draft sequence of the human genome.
isabella works for an environment safety group. her girls wants to answer the question "to what lengths must we go to orotect plants and animals?" why is her research question flawed?
Answer:
because she need to support her textual evideince
103
35. Wayne took out a box of ice cream from the freezer. He saw mist forming above the box.
$$
mist
ice cream
box of ice cream
a) Explain how the mist was formed,
Answer:
Mist is tiny droplets of water hanging in the air. These droplets form when warmer water in the air is rapidly cooled, causing it to change from invisible gas to tiny visible water droplets. Mist often forms when warmer air over water suddenly encounters the cooler surface of land.
Which word is the best antonym for stalwart.
a. unending
b. immobile
c. weak
Answer:
I think it would be week
Explanation:
Because it doesn't mean the same as stalwart
Hershey and Chase labelled phages with 32P and 35S. They found that the S35 labelled protein remained outside the cell and could be removed without affecting the phage infection. 32P labelled DNA entered the bacterial cells and could be found in progeny phages. Could this experiment have been performed using radioactively labelled hydrogen and carbon?
This experiment could not be performed using radioactively labelled hydrogen and carbon
The research of Hershey and Chase has shown that the genetic material they used to create the radioactive T2-bacteriophage is DNA (Viruses that infect E. coli bacteria). Virus T2 or the Enterobacteria phage The Group-I bacteriophage includes T2.
The T2-bacteriophage belongs to the Myoviridae family and has a linear, ds-DNA genome. The head, collar, and tail are the main components of the T2-bacteriophage's body. Because of its tail, the T2-bacteriophage resembles the T4-like virus or T4-bacteriophage.
In the Hershey and Chase Experiment, radioactive phosphorus (P32) and radioactive sulphur (S35) were used to identify the phage DNA and protein in order to determine which will infect E. coli. Hershey and Chase carried out a number of studies, including infection, mixing, and centrifugation, after labeling the phage DNA and protein.
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What will happen to photosynthsis if light is totally absent during the process?
Answer:
What will happen to photosynthsis if light is totally absent during the process?
Explanation:
As we all know, photosynthesis is a process for plants from the help of sunlight. So according to our knowledge we know that photosynthesis cannot be done during the absence of light. But when the light is partially present the process will not be start but the process will be slow because the energy of light will be less so the work done will also be less.
Which of Mendel's laws or principles explains that traits are passed from parents to offspring individually instead of as pairs, groups, or sets?
Answer:
the law of independent assortment
Explanation:
The law of segregation is the Mendel’s laws or principles explain that traits are passed from parents to offspring individually instead of as pairs, groups or sets. So the correct option is option “C” as far as the given question is concerned. This is a law or principle which states that during the formation of gametes, two copies of each heredity factors separate out so that the new offspring can get one factor of both the parents. This law was the first law in this direction.
What is the study of fish known as in biology?
Answer:
The study of fish is called Ichthyology.
Explanation:
Fish specimens are identified in the field by ichthyologists. Ichthyology is the field of study that deals with fishes. Taxonomy (classification and the description of new species) and biogeography are the two main areas of focus for museum ichthyologists (patterns of distribution).
Ichthyology is the field of study that deals with fishes. Taxonomy (classification and the description of new species) and biogeography are the two main areas of focus for museum ichthyologists (patterns of distribution). Large reference collections of preserved specimens are kept in museums as a permanent resource for present-day researchers as well as for future ones.
See the attachment for a visual.
Answer:
ichthyology, scientific study of fishes, including, as is usual with a science that is concerned with a large group of organisms, a number of specialized subdisciplines: e.g., taxonomy, anatomy (or morphology), behavioral science (ethology), ecology, and physiology.
What are the two major types of genes responsible for cancer? What are their normal function
WILL GIVE BRAINLIEST AND THANKS
Answer:
The oncogenes and the tumor suppressor genes
Explanation:
the oncogenes, which function as positive growth regulators, and the tumor suppressor genes, which function as negative growth regulators.
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As it exists, is the human body ideal? What improvements would make it function better?
¿es ideal el cuerpo humano?
El cuerpo humano es una verdadera máquina, que normalmente se encuentra calibrada a la perfección para la conservación de la “homeostasis” o “balance” a través del trabajo conjunto de numerosos sistemas: un sistema nervioso, con el cerebro y la médula espinal como sus piezas principales, que envían señales a otros
¿Qué mejoras harias que funcionen mejor
Descansa bien y levántate temprano. ...
Planifica tu jornada. ...
Mantén las distracciones al mínimo. ...
Trabaja en bloques de trabajo con descansos. ... :) :(
Ordena tu lugar de trabajo. ...
Dedícate a una cosa a la vez. ...
Automatiza todo lo que puedas.
Junctions that permit the transfer of water, ions and molecules between cells are
a. desmosomes
b. tight junctions
c. gap junctions
d. none of the above
Answer:
gap junctions
Explanation:
I don't know how to explain it but that's the answer
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imortance of diffusion and facilitated diffusion?
Answer:
Important
Explanation:
That's what I got
Suppose that one of Pasteur's swan neck flasks had broken, such that the neck came off. What would be the likely result?
Maggots would have appeared on the meat
The broth would have remained sterile
Bacteria would not have been isolated in pure culture
The animalcules would have escaped
The liquid would have become contaminated
You have a mixture of bacteria, archaea, fungi, protists, and algae. Which of the following would be most definitive in determining which of these cells are archaea?
Size in a bright field microscope
Structure in a scanning electron microscope
Fluorescence in situ hybridization
Super resolution microscopy
Simple staining
1. The likely result Maggots would have appeared on the meat. Thus. option "A" is correct.
2. Structure in a scanning electron microscope. Thus, option "B" is correct.
What are the different types of cells?The cells can be mainly classified into prokaryotic and eukaryotic. The prokaryotic cells are cells with no nucleus or centrioles but they do have a cell wall, usually one chromosome and complex cilia and flagella. On the other hand, prokaryotic cells have a defined nucleus, multiple chromosomes, and centrioles and some have a cell wall.
Thus, this could be the answer.
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