Answer:
B Makes food during photosynthesis
Explanation:
Advantage amoeba has over a cell of a lizard in relations to their levels of organism
Amoebas are single-celled organisms, which means that they are composed of just one cell. Each amoeba is a cell capable of performing all living functions by itself. They can reproduce asexually. They are protozoans with no fixed shape. Most have no hard parts and look like blobs of jelly.
5. Trapping has severely reduced the population of rabbits in an ecosystem, as shown in the bar graph below. What is the most likely effect this will have on other organisms?
A. The snake population will decrease rapidly and the grass population will increase rapidly.
B. The hawk population will increase rapidly and the rabbit population will decrease rapidly.
C. The grass population will decrease rapidly and the snake population will increase rapidly.
D. The grass, rabbit, snake, and hawk populations will all decrease rapidly.
The correct answer is A. The snake population will decrease rapidly and the grass population will increase rapidly.
Explanation:
In an ecosystem, different organisms depend on each other for food and nutrients, in the case presented it is expected the rabbits rely on the grass to feed, the snakes hunt the rabbits and finally, the hawks hunt the snakes creating a food chain. This also implies if the population of one organism is affected all the other organisms will also be affected.
According to this, in the case of the population of rabbits decreasing it is expected the grass population increases because there are not enough rabbits to feed on grass and in the same way as there are not enough rabbits for snakes to feed which will decrease the snake population. Thus, the effect, in this case, is a decrease in the snake population and an increase in grass population (Option A).
For G1 describe at least one way mistakes during the cell cycle could result in problems
Ans.
G1 (or gap 1) is first stage of cell cycle of cell division in eukaryotes. During G1 phase, cell starts to synthesize mRNA (messenger RNA) and protein molecules, which are necessary for DNA replication in next stage and other processes. At the end of G1 stage, cell moves into S-phase of cell cycle, where DNA replication takes place.
Before entering the S-phase, cell's nutritional content and DNA integrity is checked. If cells in G1 show DNA errors or damaged DNA (such as breaks in DNA strands), it will lead to problems as 'it will result into formation of daughter cells with damaged or mutated DNA, if not gets repaired.'
For G1-phase, one way mistakes during the cell cycle could result in problem is cell doesn’t have a sufficient amount of proteins or other raw materials for the replication of DNA. This condition results in formation of mutated daughter cell.
Further Explanation:
The cell cycle refers to an ordered flow of events which includes cell growth as well as cellular division. This cycle produces two new daughter cells. The cycle starts with interphase in this the cell mature and replicates its own DNA or deoxyribonucleic acid. The interphase begins with:
G1 phase: This is the primary growth phase provide nutrient to the cell. If a cell doesn’t have a sufficient amount of protein or other raw materials for the replication of DNA. It result in formation of daughter cells with damaged or mutated DNA, if not gets repaired. S phase or synthesis of DNA: During this phase, the replication of DNA takes place. The centrosome is divide and forms mitotic spindle during the mitosis phase. Mistake in this phase will leads to the loss of DNA mutations or integrity. G2 or second gap: during this phase, the cell mainly replenishes its energy stores as well as synthesizes the proteins which are required for the chromosome manipulation. In this phase error is resolved even in case of unresolved error the cell undergoes division to pass on the error to the daughter cell.
The second stage of a cell cycle is the mitosis or M phase. Chromosomal abnormalities can occur during metaphase of meiosis. It would lead to enuploidy or polyploidy, due to unequal division of chromosomes. Mitotic phase refers to a multiphase process in this the chromosomes are aligned, segregated, and moved into the two new daughter cells which are identical to each other.
Learn more:
Learn more about mitosis https://brainly.com/question/6462270 Learn more about the menstrual cycle https://brainly.com/question/723944 Learn more about meiosis https://brainly.com/question/94813
Answer Details:
Grade: High School
Subject: Biology
Chapter: Cell Cycle
Keywords:
Mitosis, meiosis, cell division, anaphase, telophase, cytokinesis, prophase, metaphase, segregation, chromosome.
Name two lower gastrointestinal system procedures that involve an endoscope, and describe why they are done.
the two lower GI system procedures that involve a endoscope is the colon, or rectum. They are done to diagnose or treat any irregularities or diseases
The devices that are used to examine GI tract
Colonoscopy SigmoidoscopyExplanationColonoscopyAs the name indicates, it is the examination of the colon (the lowest portion of GIT). It allows the examiner to view the whole large intestine. It can be done for the screening of colon cancer, To know the cause of changes in bowel habits, weight loss, pain, bleeding, GIT ulcers, tissue inflammation, constipation or diarrhoea.
SigmoidoscopySigmoidoscopy is a procedure that helps the doctor to view inside of a sigmoid portion of the colon because sigmoid colon sometimes requires closed inspection. Sigmoidoscopy is done to check any abnormal cell growth, GIT ulcers, polyps, abdominal pain, bleeding, constipation or diarrhoea.
So cars are 100 percent efficient at converting energy from gasoline to energy of motion
True
False
properties of baking soda property observed observation color white texture fine crystals odor none mixed with water dissolves mixed with vinegar bubbles maggie recorded her observations of the baking soda used in lab today. Which observation indicated a chemical property of the baking soda? A) odor b) color c) texture d) bubbles
The right option is d) bubbles
The production of bubbles when baking soda mixes with an acid such as vinegar is the observation that indicated a chemical property of the baking soda.
Baking soda (also known as sodium bicarbonate) is a nonflammable, white crystalline powder. Baking soda is odorless, and alkaline. Baking soda reacts with vinegar (acetic acid) to produce carbon dioxide (a gas), water, sodium ion and acetate ion. Baking soda is used for many purposes such as; as an antacid for treating indigestion, for baking, in fire extinguishers, as a water softener, as a pesticide, and to remove dirts from materials.
the right answer is d-bubbles i just got the right on usatestprep
This embryo began as a fertilized egg; two individual gametes joined to produce one diploid cell. What processes have been responsible for the development seen here, once the egg is fertilized? A) meiosis - cleavage - cell differentiation B) mitosis - cytokinesis- cell differentiation C) mitosis - implantation - cytokinesis - organ formation D) meiosis - mitosis - cytokinesis - cell differentiation
Answer:
mitosis - cytokinesis- cell differentiation
Explanation:
The processes responsible for the development of this embryo, with the development of distinct organs and organ systems is mitosis - cytokinesis - cell differentiation. Cells continue to divide, but after several days, the cells begin to differentiate and activate specific proteins that enable cells to fulfill specific functions. Cell differentiation must take place before organ formation.
MY answer is correct, because I just took this test! Your welcome
Answer:
B) mitosis - cytokinesis- cell differentiation
Explanation:
Please Answer The Question Below Thanks!
White blood cells, also called leukocytes, are an important part of the immune system. These cells help fight infections by attacking bacteria, viruses, and germs that invade the body. White blood cells originate in the bone marrow but circulate throughout the bloodstream.
is natural gas renewable or non renewable?
Natural gas is nonrenewable once it is gone it cannot be used anymore.
Some examples of nonrenewable resources are: fossil fuels, oil, natural gas, and coal and nuclear energy.
these are an important source of best short term energy
the correct answer is carbohydrates because this fat can produce both short and fast energy.
What structure is found mainly in green plants and bacteria
The structure that is present in both plant and bacteria is the Cell Wall
ExplanationCell wall presents outside the plasma membranes to protect the cells. It is only present in plants bacteria. It is The cell wall is As made up of cellulose, it gives support and flexibility to cells. In bacteria, it plays an important role to protect it from the external stress and gives specific shape. In both organisms, The cell wall also contains pores to enable the movement of food particles in or out of the cells. If it is not present in their outer surfaces, the much entrance of particles or other related compounds may lead to cell brust.
Which of these is an example of a chemical change? A.Dissolving salt in water B.Melting Ice C.Burning a piece of wood D.Breaking a tree branch
Your answer is probably ether A.Dissolving salt in water. or C.Burning a piece of wood.
We have that The one from the options that is an example of a chemical change
Burning a piece of wood
Option C
From the question we are told
Which of these is an example of a chemical change?
A.Dissolving salt in water
B.Melting Ice
C.Burning a piece of wood
D.Breaking a tree branch
Generally
chemical change is likened to a change that is irreversible i.e the process cant be reversed to get its original state before change
Therefore
The one from the options that is an example of a chemical change
Burning a piece of wood
Option C
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A man is on trial for the murder of his wife. The prosecution on this case would like to bring forward an expert in the field of ballistics to prove the bullet found at the crime scene was that of the defendant. This ballistics expert has a PhD in forensic science and has worked at the Ballistics Dept. at the Forensic Center in Houston, TX for 25 years. His methods are widely accepted in the scientific community. The judge finds his testimony to be relevant and allows his testimony to be heard. Which correctly describes the admissibility of this expert's testimony?
A) Frye standard
B) Daubert ruling
C) Miranda rights
D) Ballistics rule
What is the correct order for processing a crime scene?
A) first officer reports to scene, securing the crime scene, crime scene survey, collection of physical evidence
B) crime scene survey, first officer reports to scene, securing the crime scene, collection of physical evidence
C) first officer reports to scene, collection of physical evidence, securing the crime scene, crime scene survey
D) first officer reports to scene, crime scene survey, securing the crime scene, collection of physical evidence,
1. B) Daubert ruling
Daubert standard or Daubert ruling is used in the court to determine whether a scientist testimony could be admissible. The judge will be the gatekeeper and has to determine the admissibility of the testimony based on several checklist. It might sound similar to Frye standard which only testing the general acceptability of the testimony of the scientist in the particular field.
2. A) first officer reports to scene, securing the crime scene, crime scene survey, collection of physical evidence
Processing crime scene should be done in an orderly fashion to make the evidence collected reliable. Securing crime scene is important to make sure there no one change or destroy the evidence there. After that, doing a survey so you could do your work more efficient and doing less damage to the scene. Collecting the evidence would be done last.
After the process of _______ occurs, each daughter cell receives an exact copy of the parent cell's dna. A. Dna translation b. Dna replication c. Dna transcription d. Dna elongation
B. DNA replication. She gets an EXACT COPY of the parent cell’s dna.
Answer: DNA replication
Explanation:
DNA replication can be defined as a biological process by which two replica of single DNA is produced from one original DNA molecule.
DNA replication takes place in all the living organisms as it carries the characters from one generation to another generation and so on.
It is double helical structure found in every cell of the body that takes part in the process of DNA replication.
Which is the best definition of activation energy? the energy required to end a chemical reaction the energy required to bind a substrate to an active site the energy required to form or break the bonds of reactant molecules the energy required to re-form bonds in product molecules
Activation energy is the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.
So the answer : it is the required to form or break the bonds of reactant molecules that results in a chemical reaction.
Answer:
C.) the energy required to form or break the bonds of reactant molecules
Explanation:
How do unicellular organisms and multi cellular organisms compare in meeting their needs to stay alive
what blood vessels contain valves?
veins and capilliaries contain valves.
Valves are found in veins, which are blood vessels in the circulatory system. They function to prevent backflow and support the upwards movement of blood towards the heart.
Explanation:
In the circulatory system, veins are the type of blood vessels that contains valves. These valves in veins prevent the backflow of blood, aiding its return to the heart. For example, the veins in our legs have to move blood upwards against the force of gravity towards the heart, and it's the individual valve's opening and closing that allow for this one-way blood flow.
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need help im on an assingment and im confused also please dont lie about the answer
An organism which produces its food by photosynthesis:
must be placed in the Plantae Kingdom
may be placed in the Plantae Kingdom
must be placed in the Animalia Kingdom
may be placed the in the Animalia Kingdom
Answer:
may be placed in the plantae kingdom
Explanation:
it's not C or D because animals don'r produce photosynthesis. And some plants don't. So it has to be B.
Lystrosaurus provided which type of evidence supporting continental drift?
A. land features
B. fossil evidence
C. glacial evidence
D. climate change evidence
Answer:
Yes it would be B.) fossil evidence
Explanation:
It was found that there was similar type of genetic characteristics of animals living in different parts of the world. So therefore it would be fossil evidence. Have a nice day!
Jenna's pencil fell off of her desk and she quickly reached down to catch it before it hit the ground. In this process, the system first recognized the falling pencil. It sent signals to the system, which then moved the components of the system in order to catch the pencil.
1. nervous
2. muscular
3. skeletal
Jenna's ability to catch her falling pencil quickly is made possible by her nervous system's fast reaction time.
Explanation:Nervous System and Reaction TimeIn the scenario described, Jenna's ability to quickly catch her falling pencil is due to her nervous system's fast reaction time. The nervous system is responsible for recognizing the stimulus (falling pencil) and sending signals to activate the necessary components (muscles) to catch it.
The nervous system works through the specialized cells called neurons, which transmit electrical signals. When the pencil falls, the sensory neurons in Jenna's hand and arm detect the movement and send signals to the brain. The brain then processes this information and sends signals through motor neurons to the muscles in Jenna's hand and arm, allowing her to reach down and catch the pencil in time.
How can carbon move from land to bodies of water
Carbon moves from land to bodies of water as in following steps.
Carbon in the land is present in form of fossil fuels and plants and animals.
It converts into CO2 gas form by the burning of fossils and respiration of plants and animals.
This atmospheric CO2 is used by plants in water for photosynthesis.
Water bodies eat these plants for their nutrition. And use that carbon for making there carbohydrates, lipids and proteins.
Hence making land carbon their body part.
A researcher investigates a blood disease carried by birds. She isolates an organism from the blood of an infected bird. She finds that the organism is unicellular and has a nucleus, a cell wall, and the ability to produce spores. What kingdom does the organism belong to? A. archaea B. bacteria C. sarcodina D. protista
Note each of them:
Archaea is a single-celled microorganism with no nucleus
Bacteria is a unicellular microorganism with cell walls but lack organelles
Sarcodina is a phylum with temporary extensions of the cell. They can be parasitic.
Protista is an eukaryotic organisms that is not an animal, plant, or fungus.
The organism found is unicellular (rules out Archaea), with cell walls (characteristics of bacteria), and the ability to produce spores.
I believe that Bacteria (B) is your best answer
hope this helps
Answer:
D. protista
Explanation:
I got it right on the test.
Which materials undergo radioactive decay? Check all that apply.
atoms that are unstable
elements that have a half-life
atoms that release energy and particles
elements that have turned into a new element
elements that have a consistent number of particles
A dependent variable changes due to the manipulated independent variable. True or false
Logistic growth curves are density-dependent.
Answer:
true
Explanation:
edge 2020
In chemical reactions, atoms are
a)
created.
b)
rearranged.
c)
destroyed.
d)
neutralized.
Answer:
B
Explanation:
The atoms that started out in hydrogen peroxide molecules are rearranged to form water molecules.
In chemical reactions, atoms are rearranged, not created or destroyed. This conforms to the Law of Conservation of Mass. An example is the reaction of hydrogen and oxygen to form water.
Explanation:In chemical reactions, atoms are rearranged. They are not created or destroyed. This concept is based on the Law of Conservation of Mass which states that matter cannot be created or destroyed. Therefore, during a chemical reaction, the atoms of the initial reactants reorganize themselves to form the end products, but no atom is created or lost.
For example, if we have a chemical reaction of hydrogen and oxygen forming water (2H2 + O2 -> 2H2O), the atoms are rearranged such that the 4 hydrogen atoms and 2 oxygen atoms from the reactants end up as 2 water molecules in the product.
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This organelle allows materials to enter and exit the cell. A mitochondria b endoplasmic reticulum c cell membrane d golgi body e nucleus f cytoplasm g cell wall h chloroplast
the correct answer is
C) cell membrane
Every year, a new influenza vaccine is developed. What is the most likely reason that doctors do not use the same vaccine each year? a. the vaccine turns into a new virus that causes a recurrence of the same influenza each year. b. the virus which causes influenza adapts each year to the last vaccine in order to survive and reproduce. c. any vaccine can only last for a year before it dies. d. a new, different virus that causes influenza enters the food chain through plants about once every year, infecting humans.
The virus which causes influenza adapts each year to the last vaccine in order to survive and reproduce.
Doctors need to develop a new influenza vaccine each year because the virus constantly changes its surface proteins, evading the previous year's vaccine. The new vaccine is designed to target the strains predicted to be most common in the upcoming season.
Explanation:The primary reason doctors do not use the same influenza vaccine each year has to do with the nature of the influenza virus itself. The virus that causes influenza undergoes constant changes, specifically in its surface proteins, a phenomenon known as antigenic drift. This allows the virus to evade the immune system, as the antibodies developed from the previous vaccine might not recognize the new variant of the virus.
A new influenza vaccine is, therefore, developed each year to target the specific strains of the virus that scientists predict will be the most common during the upcoming flu season. Hence, option b is the most accurate: 'the virus which causes influenza adapts each year to the last vaccine in order to survive and reproduce.'
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Jordan is doing a science fair project on the effects of music on the growth of tomatoes. He has two tomato plants, Plant A and Plant B, that he grows in a window and gives the same amount of water. Plant A is exposed to classical music using headphones attached to the soil. Throughout the growth period, Jordan counts the number of tomatoes produced by each plant.
List one of the experimental constants in this experiment.
Answer:
Water and sunlight are the experimental constants.
Explanation:
As we know, scientific experiments are composed of variables (dependent and independent) that are factors that researchers can manipulate to provoke a reaction that allows them to observe results. What few know is that in addition to variables, experiments are composed of factors called "constants". Experimental constants are factors that are maintained in the same way throughout the experiment without being manipulated. An example of this can be seen in the question above, where the researcher used as constant the amount of water supplied to plants and the amount of sunlight.
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All of the statements below describe how reproductive isolation drives speciation except .
1.
Behavior- two similar species may have different courtship or mating behaviors.
2.
A reproductive barrier keeps similar species from interbreeding.
3.
If the environment changes suddenly, evolution will be faster.
4.
Timing-two similar species may have different breeding seasons.
A reproductive barrier keeps similar species from interbreeding.