Introduced species
Ecosystems are complex systems that are in dynamic equilibrium with constant interactions between their parts.
When a new species is introduced, new interactions will occur, generating new components of the system and also competing with the previous interactions between the species already present in the system, which normally ends up generating an imbalance in the ecosystem mentioned, i.e a disruption in it.
1) Use the following word bank to
fill in the blanks on the flow chart:
Zygote
Mitosis
Egg
Fertilization
Sperm
Meiosis
Embryo
organism
Mother
Egg
The figure above will be required for the next two questionsIn figure B, red blood cells are in what type of solution?Hypotonic, which means the solution (plasma) has higher solute concentrationHypertonic, which means the solution (plasma) has higher solute concentrationHypotonic, which means the solution (plasma) has lower solute concentrationHypertonic, which means the solution (plasma) has lower solute concentration
• Hypertonic - Greater solute concentration
,• Hypotonic - Lower solute concentration
,• Isotonic - Same solute concentration
Given that by osmosis water will go to where the concentration is higher, in an attempt to make the concentrations the same, and in figure B the cells have lost water, this means the plasma has a higher concentration of solute, which means is hypertonic. This means the answer is B.
A particular laboratory solution contains 5 µL of propanol per 10 mL solution.Express this as a percent propanol solution.
5 microlitre= 0.005 millilitre
0.005 mL of propanol present in 10 mL solution.
In 1 mL solution 0.005÷10= 0.0005 mL propanol solution present
In 100 mL solution 0.0005×100= 0.05 % propanol solution
What is percentage solution?
A volume or amount of chemical or compound per 100 mL of a solution is referred to as a percentage solution. Relative solute to solvent expression: X amount/100 ml = X%
Solution concentrations can be easily and conveniently recorded using percentage solutions. The fact that the molecular weight of a substance is not taken into account when determining the percentage of the necessary solution is a benefit of percentage solutions.
Two varieties of percentage solutions are frequently applied in histology:
Percentage weight by volume (w/v)
Percentage volume by volume (v/v)
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What are organs composed of, what function does this composition serve and what is the primary role of an organ system within an organism.
Organs are composed of tissues, which are further composed of cells. Organs perform specifically assigned activities that support the overall process of an organ system.
The primary role of an organ system within an organism is to regulate the complete mechanism of vital processes. Essential activities of the organism are carried out by organ systems. The way respiration is controlled by the respiratory system, digestion is managed by the digestive system are the prominent roles of various organ systems.
The basic activities are performed by tissues on the root level resulting in the completion of processes. Based on the organization of the body, different phyla are formed. This arrangement depicts an efficient division of labor in the hierarchy.
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A scientist wants to investigate how the availability of
water affects the growth of trees.
Which investigation could the scientist use to gather evidence
relating to this topic?
OA. A comparative investigation in which the scientist
compares the root structures of two different types of
trees to see how they absorb water differently
B. A descriptive investigation in which the scientist closely
studies and describes the process by which trees take
in water
c. An experimental investigation in which the scientist
gives a tree a different amount of water each day and
records its growth over time
D. An experimental investigation in which the scientist
gives several trees of the same species varying
amounts of water over a period of time and measures
how quickly the trees grow
SUBMIT
Answer:
D
Explanation:
Comment
C is the second best answer, but it is not compared to anything, so you don't know if the tree is acting well in the environment, or not so good at all.
D is the best answer. Take a bunch of trees. Treat them the same way and see what the range is. If it's narrow, then the scientist has not learned that much except that the trees tend to act the same way under the same conditions. If there is a lot of variation, then he or she has to devise another experiment to find out why.
1. What is the ozone layer? Why is it important?
2. What causes ozone to form naturally in the upper atmosphere? Lower atmosphere?
3. Explain why scientists say the earth has too little AND too much ozone.
4. What chemicals are destroying the ozone layer? Where is this destruction most visible?
5. What is causing the temperature of the earth to increase? What is this called?
6. Name the greenhouse gases.
7. What are some ways humans have contributed to the greenhouse effect?
A portion of the sun's radiation is absorbed by the ozone layer in the stratosphere, preventing it from reaching the planet's surface.
What is the ozone layer?The majority of the UV light from the Sun is absorbed by the Earth's stratosphere's ozone layer, also known as the ozone shield. In comparison to other areas of the atmosphere, it has a high concentration of ozone (O3), yet it is still relatively low in comparison to other gases in the stratosphere.The stratosphere, a region of the atmosphere between 10 and 40 kilometers above us, is where the majority of ozone is found. Here, it serves as a shield to insulate the Earth's surface from the sun's harmful UV rays. Weakness in this barrier would make us more prone to immune system problems, cataracts, and skin cancer.Ozone depletion is the steady lowering of the Earth's ozone layer in the high atmosphere as a result of human activity and the discharge of chemicals including gaseous chlorine or bromine. Particularly over Antarctica, the thinning is particularly noticeable in the polar areas.To learn more about : Ozone layer
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PEASE HELP PLEASE!? List and describe the substrates and products of TCA cycle
Answer:
HOPE THIS HELPS
Explanation:
1. The TCA cycle begins with an enzymatic aldol addition reaction of acetyl CoA to oxaloacetate, forming citrate.
2. The citrate is isomerized by a dehydration-hydration sequence to yield (2R,3S)- isocitrate.
3.Further enzymatic oxidation and decarboxylation gives 2-ketoglutarate.
4. After another enzymatic decarboxylation and oxidation, 2-ketoglutarate is transformed into succinyl - CoA.
5. The hydrolysis of this metabolite to succinate is coupled to the phosphorylation of guanosine diphosphate (GDP) to guanosine triphosphate (GTP).
6.Enzymatic desaturation by flavin adenine dinucleotide (FAD)-dependent succinate dehydrogenase yields fumarate.
7.After stereospecific hydration, fumarate catalyzed by fumarase is converted to L-malate.
8.And the final step of the TCA cycle of NAD- coupled oxidation of L-malate to oxaloacetate is catalyzed by malate dehydrogenase and closes the cycle.
Four students measure the length of a block of wood. The block has a length of 4.0 cm. The measurements taken by the students are given below. Student A: 3.9 cm Student B: 4.0 cm Student C: 4.1 cm Student D: 3.9 cm The student's measurements show _____. a high degree of precision a high degree of accuracy both a high degree of precision and a high degree of accuracy neither accuracy nor precision
Since they are not all exactly the same number, even though they are near, I would suggest high precision rather than accuracy. Despite being near to one another, they lack precision since no two numbers are exactly the same.
There are two ways to assess observational error: accuracy and precision. Precision measures how closely two measurements are to one another, whereas accuracy measures how close a group of measurements is to its actual value. In other words, precision is a measure of statistical variability and a description of random mistakes. How accurately a measurement reflects how near it is to the actual or acceptable value. Precision is the degree to which measurements of the same thing agree with one another. Accuracy is not necessary for precision. Precision measures the reproducibility of measurements, even when they are far from the acceptable value, whereas accuracy measures how near a measurement is to a known or accepted value. Measurements that are both precise and accurate are repeatable and extremely near to true
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Drag into the correct order, starting with deoxygenated blood entering the right atrium (1 = first) This deoxygenated blood is pumped out of the heart and towards the lungs by the right ventricle 1 At the lungs the deoxygenated blood exchanges carbon dioxide for oxygen, becoming Oxygenated Oxigenated blood returns to the left atrum of the heart Deoxygenated blood from the body enters the right otrum of the heart The blood becomes deoxygenated and returns to the heart The oxygenated blood gives its oxygen to body cells in exchange for carbon dioxide
To answer this we must remember quickly how the blood flows in the heart. Blood enters through the superior vena cava to the right atrium then through the tricuspid valve passes to the right ventricle, the blood flows then to the pulmonary valve and the pulmonary artery directly to the lungs where is oxygenated, later returns through the pulmonary vein and mitral valve, to the left ventricle where is directed through the aortic valve into the aorta and into the rest of the body. Therefore the order is as follows:
1.- Deoxygenated blood from the body enters the right atrium of the heart
2.-This deoxygenated blood is pumped out of the heart and towards the lungs by the right ventricle
3.- In the lungs the deoxygenated blood exchanges carbon dioxide for oxygen, becoming Oxygenated
4.- Oxygenated blood returns to the left atrium of the heart
5.-The oxygenated blood gives its oxygen to body cells in exchange for carbon dioxide
6.- The blood becomes deoxygenated and returns to the heart
Note: there is a step missing after point 4 as blood goes to the left ventricle before leaving the heart.
Which of the following does the scope of a project refer to? (1 point)
O the size of the research project
O the way the project is organized
O an effective source for the project
O the answer to your research question
Answer: The size of the research project
Explanation:
The project scope is the total amount of work that needs to be done to complete a project.
Project scope entails documenting project goals, deliverables, tasks, costs, and timeframes. Therefore, option (A) size of the research project is correct.
What is project scope?The phase of project planning known as "project scope" requires the creation of a detailed list of the endeavor's particular objectives, deliverables, tasks, and timetables before it can be considered complete.
What the project is about, what is included in it, and what is not included in it are some of the things that are outlined in a project scope. Key stakeholders, procedures, assumptions, and restrictions are also outlined in a project scope. A scope statement is where all of these vital pieces of information are documented for reference.
Therefore, option (A) is correct.
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True or False: Plants cell divide through cleavage during Cytokinesis phase of Cell cycle.
O True
O False
Answer:
TRUE
Explanation:
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40. What genotypes are produced by a program of inbreeding?A. only dominantB. only heterozygousC. only homozygous
Remember that inbreeding is a process of production of offspring in which genetically closely related organisms are mated. This leads to homozygosity. In humans, inbreeding by causing homozygosity is intrinsically related to congenital anomalies and recessive genetic pathologies.
We can conclude that the correct answer is:
Answer:C. only homozygous
Which of the following describes a similarity between aquafarming and hydroponic farming?
A. They both require existence of fish.
B. They both require adding nutrient-rich water.
C. Neither requires soil.
D. They both require mutualism.
Pretty sure the answer is B. Someone tell me if i'm wrong.
Answer: B
Explanation: You Need nutrient-rich water Or The Plant Is Gonna Die
Hope I Helped!
Which transition is most responsible for gaps in the fossil record?
O A. metamorphic rock to igneous rock
OB. igneous rock to metamorphic rock
O c. metamorphic rock to sedimentary rock
O D. sedimentary rock to metamorphic rock
Answer: I believe it would be metamorphic to sedimentary
A recessive allele is:
O The set of DNA instructions that determines the offspring's traits.
O The trait that is observed when it is present; represented by capital letters.
O The passing of traits from parent to offspring.
O The trait that is observed only when 2 alleles are present; represented by lower case letters.
A recessive allele is the trait that is observed only when 2 alleles are present; represented by lower case letters.
Recessive Allele- When there is only one copy of an allele, it has no effect at all. This is in contrast to a dominant characteristic, which can only be expressed when one of two alleles is present.
Trait- A character is an attribute that helps identify the organism, whereas a trait can defined as a condition of character, that is a distinctive variant of a phenotypic feature of an organism. For instance, you could inherit the trait of green eyes from your parents if they both have them.
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PEASE HELP PLEASE!? List and describe the substrates and products of TCA cycle
Acetyl CoA and oxaloacetate are the substrates of TCA cycle and GTP, 3NADH, FADH2, 2[tex]CO_{2}[/tex] are the 7 products that are yielded during the TCA cycle.
Explain the TCA cycle.The second stage present of cellular respiration is a three-step process through which living cells break down organic fuel molecules while in the presence of oxygen to obtain the entire energy that they require to grow and divide, is known as the tricarboxylic acid cycle, also known as the Krebs cycle or the citric acid cycle.
What phases make up the TCA cycle?The TCA Cycle in Steps can be stated as
Oxaloacetate, a four-carbon chemical, and acetyl Co-A mix, releasing the CoA group to form the six-carbon molecule known as citrate.
Citrate is transformed into its isomer, isocitrate, in the subsequent step.
Isocitrate is oxidized in the third phase.
The creation of citric acid, which has three (COOH) carboxylic groups, triggers the Krebs cycle processes.
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What are the four bases of the genetic code?
Answer:
There are four nucleotides, or bases, in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T).
Adenine (A) and Thymine (T) always pair togetherCytosine (C) and Guanine (G) always pair togetherExplanation:
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True or False? It is unsafe to look at a solar eclipse without special sunglasses. It is safe to look at a lunar eclipse without special sunglasses.
It is unsafe to look at a solar eclipse without special sunglasses. True
It is safe to look at a lunar eclipse without special sunglasses. False
This treatment can increase the risk _________________________ cancer.
Answer: of
Explanation: IT MAKES SENSE!!!!
Will give 200 points if help
Answer:
1.50
2.0
3.36-24
4.2
5.approximately about like 2,344
6.99
Answer: The answer is ⠀ ⠀ ⠀, hope this helps! :))
Explanation:
Which of the following is considered a gender stereotype?
Question 7 options:
Men have more facial hair than women.
Women stay home and take care of the children.
Men are typically taller than women.
Women can become pregnant and give birth to children.
Answer:
Women stay home and take care of the children
he copied DNA that directs the production of a protein is called:DNA.RNA.a gene.ribose.
The correct answer is RNA.
Transcription is the process by which DNA is copied to RNA, which ultimately directs protein synthesis.
DNA- contains the genetic information responsible for the development and function of an organism.
Gene- refers to the basic unit of heredity passed from parent to child.
Ribose- refers to the five-carbon sugar found in an RNA molecule.
What is your hypothesis?
As the incline angle increases, the force also increases which is inversely proportional to the time . Therefore, the time a toy car takes to travel down a ramp is less.
What is angle of incline?On a graph, the distance between two lines is represented by an angle called the angle of inclination. As the angle increases, the parallel component of force increases and the perpendicular component of force decreases. The acceleration is brought about by the parallel component of the weight vector. Therefore, accelerations are greater at steeper angles.
Because the steeper the incline, the greater the Gravitational Potential Energy (GPE), and the greater the GPE, the more kinetic energy is converted and the faster the car will travel.
Thus, as the slope of the ramp increases, so will the velocity and the time decreases.
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in a DNA molecule having 1400 bases has 400 adenine bases .so what will be the number of thyamine bases?
Answer:
Thymine (T) is one of the four nucleotide bases in DNA, with the other three being adenine (A), cytosine (C) and guanine (G). Within a double-stranded DNA molecule, thymine bases on one strand pair with adenine bases on the opposite strand. The sequence of the four nucleotide bases encodes DNA's information.
Please write 5 sentences to this
Similarities between cells and viruses includes:
Both cells and viruses have nucleic acid genomes based on the same genetic code that's used in cells.Both cells and viruses has genetic variation and can evolve.The differences between cells and viruses are:
Cells can exist by themselves while viruses need a living host in order to reproduce.Cells are the basic units of life, Viruses are non-living infectious particles.The 4 parts of a virus are:
Nucleoid Capsid EnvelopeEnzymes.What is a virus?A virus can be described as a submicroscopic infectious agent that replicates only inside the living cells of an organism.
The virus consists of a single molecule of nucleic acid surrounded by a protein coat called the capsid.
In conclusion, viruses shares some differences and similarities between cells.
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A teen who eats large amounts of food in a single sitting and then induces vomiting to eliminate the food might be suffering from __________.
Question 1 options:
anorexia
bulimia
synesthesia
diffusion
The answer is Bulimia,otherwise referred to as Bulimia Nervosa
Notes: Is often confused with anorexia, bulimia is characterized by binge eating and then purging of foods whereas someone with anorexia has no appeal to food (or little appeal) and would avoid eating altogether.
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Which of these is NOT part of cell theory? A:A. All cells come only from existing cells. B:B. All cells have the same basic structure. C:C. All living things are made of one or more cells. D:D. The structure and function of an organism is determined by the structure and function of its cell(s).
B.All cells have the same basic structure
Different types of cells wherever we see them have their own unique structure. Cells with different function generally have different shapes that suit them for their particular function
Molecules move UP a concentration gradient. What is this called
describe the steps in the water cycle. then, describe what latent heat is. at what steps in the water cycle is latent heat absorbed? in which steps is latent heat released? helpp
What happens when the cell of a unicellular organism dies?
A unicellular organism is an organism that consists of a single cell. When the cell dies, the organism dies.