Which of the following elements have the highest percentage in terms of frequency in the Earth's crust and human body, respectively? A. Nitrogen, Oxygen B. Oxygen, Silicone. C. Carbon, Oxygen. D. Oxygen, Oxygen
Answer
The most abundant elements in the human body are oxygen, carbon and hydrogen. Oxygen makes up 65% of the body.
Answer:
Oxygen as it makes up 65% of the body
Plastids that are surrounded by more than two membranes are evidence of.
Plastids that are surrounded by more than two membranes are evidence of: secondary endosymbiosis.
Which factor is most likely to cause a faster rate of blood flow?
A.
decreasing stress
B.
exercising
C.
sickle cell disease
D.
atherosclerosis
Answer:
B. exercising
Explanation:
exercise widens veins and arteries making blood go faster
faster blood means more oxygen to muscles
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Some studies have shown that peppermint odor increases people’s mental sharpness, especially when they solve math problems. Which best describes how this could be a valid scientific claim?
if it is tested in a controlled setting with repeated results
if the test is published on Wikipedia
if the scientist was previously peer reviewed
if the math problems are easy problems
The claim could become valid scientifically if it is tested in a controlled setting with repeated results. The correct option is the first option.
Scientific validityA statement without any experimental test is considered a hypothesis in science.
In order for tentative statements to become valid scientific claims, they must be tested experimentally in a controlled setting with the resulting data supporting the claims. The data must also be reproducible by independent researchers.
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Answer: A: If it is tested in a controlled setting with repeated results
Explanation:
I just took the quiz on Edge.
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The scales shown in the introduction measure mass,or the amount of matter in a particular object.The scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. Did the simulation support this scientific law? Explain why or why not.
The simulation supports the scientific law : I.e TRUE
The scientific law of conservation of massThe scientific law of conservation of mass states that the mass of a substance remains the same in a closed system as the substance/matter undergoes a chemical reaction. during chemical reaction the matter changes from one form to another. Therefore measuring the mass of matter in an object before it undergoes a chemical reaction support the scientific law as the mass of reactants is equal to mass of product.
Hence we can conclude that the simulation supports the scientific law : I.e TRUE.
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What is the best way to test a hypothesis? by completing research by designing and performing an experiment by having a scientist make an educated guess by creating a spreadsheet to organize your data
Answer:
by designing and performing an experiment
Explanation:
This space station has plants growing inside it, and astronauts who eat the fruits and vegetables from those plants. Because it is in space, the station is sealed so no material can get in or out.
The space station is in Earth’s shadow, so no light is getting into it. The sensors in the space station show that carbon dioxide in the air is increasing.
What is happening to the energy storage molecules in the plants and humans in the space station? Explain your answer as completely as possible.
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Students are modeling mrna during the process of protein synthesis
The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.
How, explain briefly?Protein synthesis which encompasses how gene is used to synthesize proteins consists of two processes namely; transcription and translation.
- Transcription is the process whereby the sequence of a DNA template is used to synthesize a mRNA strand. The mRNA sequence is synthesized using the COMPLEMENTARY BASE PAIRING RULE, which states that Adenine base (A) will always hydrogen pair with Thymine (T) while Guanine (G) will always pair with Cytosine (C).
Thus,This means that the mRNA strand produced is complementary to the DNA template strand that was transcribed. However, Uracil base (U) replaces thymine (T) in the mRNA molecule because Thymine is not found in RNA. Hence, Uracil instead of Thymine pairs with Adenine in the mRNA.
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Which of the following is not caused by a virus?
Chicken pox
Tuberculosis
Mumps
Measles
Answer:
Tuberculosis.
Explanation:
it is caused by a bacterium which can attack any part of the body such as the kidney, spine, and brain. not everyone infected with TB becomes sick
Cara set the following goal for herself:
I want to be a good softball player.
Please describe the effectiveness of Cara's goal in two to three complete sentences using the MAD goals concept.
The effectiveness of Cara's goal can be achieved using the MAD goals concept when her idea is Measurable, Attainable, and have a Deadline.
What is the Mad goals concept?The MAD Goals are:
MeasurableAttainableDeadline.They should be measurable so students can know if they are making progress towards their goals. They should be attainable because there is no sense in having goals that can never be reached. They should have a deadline so that the student will feel some urgency to reach the goal.
The effectiveness of Nolan's goal can be achieved using the MAD goals concept when her idea is Measurable, Attainable, and have a Deadline. When the cancer donations falls within the defined steps above, she can be able to attain her goal.
Thus, this could be the answer.
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What is the name of the people who have long inhabited northern norway, sweden, and finland?.
Answer:
The Sámi people are an indigenous people of Northern Europe inhabiting Sápmi, which today encompasses northern parts of Sweden, Norway, Finland and the Kola Peninsula of Russia.If this helps mark me brainliest.Thanks.
Select the correct label on the image.
An ecological pyramid shows the transfer of energy. Which level will contain only 0.1% of the total energy obtained from the Sun?
5 kcal
hawk
50 kcal
snakes
500 kcal
mice (rats)
5000 kcal
plants
Biomass (energy) pyramid
Reset
Next
Tertiary consumers receive only 10% of the energy consumed by secondary consumers.
What is secondary consumer?The secondary consumers are meat-eating organisms (carnivores) that consume the primary consumers. Secondary consumers are typically larger and more numerous. All the way to the top of the food chain, this goes on.
This is due to the fact that secondary consumers expend the majority of their energy on growing and reproducing. As a result, tertiary consumers only receive 0.1 percent of the Sun's total energy.
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How does heart failure affect the circulatory system
Answer:
Your heart may not be strong enough to pump out as much blood as your body needs.
Explanation:
As it tries to move more blood, your heart gets larger. It also pumps faster, and your blood vessels narrow to get more blood out to your body.
Which of the ideas below is a good characteristic of a scientific experiment?
A. Small sample size for collecting data.
B. Uncontrolled surroundings
C. Repeated Trials
D. Variable procedures for obtaining data- changing the steps that you follow during an experiment
What is coral bleaching? Do you think
coral bleaching will continue to occur? Explain
Match the biological structure with its metaphorical equivalent Question 5 options: Movie Authors Words Chapter variations Script Sentences Books Chapter numbers Library 1. Nucleotides 2. Genes 3. Allele locations (loci) 4. Alleles 5. Chromosomes 6. Karyotype 7. Parents 8. Genotype 9. Phenotype
1. Nucleotides: A phosphate group, a 5-carbon sugar, and a nitrogenous base are the three components of a nucleotide. Adenine, cytosine, guanine, and thymine are the four nitrogenous bases in DNA. Instead of thymine, uracil is found in RNA. The genetic material of all known living creatures is made up of nucleotides in a chain.
2. Genes: A gene is a small segment of a lengthy DNA double helix molecule that consists of a linear base pair sequence. A gene is any portion of DNA that contains instructions that allow a cell to generate a specific product – usually a protein, such as an enzyme – that performs a single specified action.
3. A locus (plural loci) is a stable location on a chromosome where a certain gene or genetic marker can be found.
4. At a genomic region, an allele is one of two or more variations of DNA sequence (a single base or a segment of nucleotides).
5. Chromosomes are thread-like structures found within the nucleus of both animal and plant cells. Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA). DNA is passed along from parents to children and carries the precise instructions that distinguish each living thing.
6. Karyotype: A karyotype is a individual's entire set of chromosomes. A laboratory-produced representation of a person's chromosomes extracted from an individual cell and arranged in numerical order is also known as a chromosomal map. A karyotype can be used to check for chromosomal number or structural problems.
8. Genotype: An organism's genotype is its genetic makeup. From embryonic development to adulthood, the genotype determines an individual's inherited potentials and limitations. In se×ually reproducing organisms, a person's genotype is made up of the whole set of genes acquired from both parents.
9. Phenotype: Physical traits are described by phenotypes. It encompasses both apparent (such as hair or eye color) and measured characteristics (like height or weight). Characteristics relevant to your development and behavior, such as personality traits, are also referred to as phenotypes.
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how do the changes in the red blood cells impact homeostasis
Answer:
Red Blood Cell Homeostasis: Mechanisms and Effects of Microvesicle Generation in Health and Disease. Red blood cells (RBCs) generate microvesicles to remove damaged cell constituents such as oxidized hemoglobin and damaged membrane constituents, and thereby prolong their lifespan.
The functional units of dna that contain the instructions for making one or more proteins are.
Answer:
The functional units of dna that contain the instructions for making one or more proteins are the "Genes".
which part of a green plant shows the greatest increase in chloroplast by the end of spring
Answer:
The leaf shows the greatest increase
What is Immunotherapy? explain in your own words, please:(
Which of the following planets has the largest orbital radius compared to the others?
Group of answer choices
Jupiter
Mercury
Saturn
Venus
Answer:Jupiter
Explanation:
is the largest of all the planets. It has a radius of 71,492 kilometers at the equator and a radius of 66,854 kilometers at the poles
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Which of these equation is the correct one for fermentation?
❍ Glucose + oxygen → carbon dioxide + water
❍ Glucose → lactic acid
❍ Glucose → ethanol + carbon dioxide
☣ Explanation -:To understand this first we should know what is fermentation.
What is fermentation?
A process of chemical change in food or drink because of the action of yeast which may cause it to produce bubbles or heat, or turn sugars in it into alcohol.
Equation -:
[tex] \small\sf{C_{6}H_{12}O_{6} \rightarrow2C_{2}H_{5}OH + 2CO_{2}} [/tex]
Which means
Glucose → ethanol + carbon dioxide
Hence opition c is the correct answer.Why are fats a better source of energy than carbohydrates on a per carbon basis?.
Fats are a better source of energy than carbohydrates on a per carbon basis because one triglyceride molecule yields three fatty acid molecules.
What is Fat?
This is an important energy source in the body and is usually stored in the body under adipose tissues.
They contain triglyceride with as much as 16 or more carbons in each one which helps to generate energy in a slow and efficient manner.
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A person cannot produce several types of lipases and amylases. name a problem this individual would have and explain why.
A person cannot produce lipases and amylase due to mutations in the genes that encode enzymes required to break down fats and starch.
What are lipases and amylase?Lipases and amylase are two types of enzymes required to break down fats and starch, respectively.
Mutations in the genes that encode these enzymes may lead to the production of defective proteins.
In conclusion, a person cannot produce lipases and amylase due to mutations in the genes that encode enzymes required to break down fats and starch.
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what is the function dna polymerace
a - bringing amino acids to the ribosome
b - bringing dna to the ribosome
c - linking complementary base pairs to the parent strand
d - turning dna into rna
Explanation:
linking complementary base pairs to the parent strand
ponds were constructed for the purpose of
Answer:
Ponds are used for breeding grounds for these species but also as shelter and even drinking/feeding locations for other wildlife.
Answer:
There is some ponds are constructed for the production of HEP Hydroelectric power,or as the water catchment area in flooded areas.
What is one characteristic of Mercury?
A. It has the densest atmosphere of the terrestrial planets.
B. It has the largest temperature variation of the terrestrial planets.
C. It is the terrestrial planet farthest from the sun.
D. It has the strongest magnetic field of the terrestrial planets.
Answer:
It has a solid surface that is covered with craters like our Moon.
Explanation:
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why is mushroom known as a type of fungi
Explanation:
Mushrooms are fungi. They belong in a kingdom of their own, separate from plants and animals. Fungi differ from plants and animals in the way they obtain their nutrients.
Which of the following pieces of information CANNOT be determined from the fossil record?
Answer:
Evidence of every species that ever existed.
Explanation:
A researcher proposes a model of an enzyme catalyzed reaction
A researcher proposes a model of an enzyme-catalyzed reaction in which a reactant is converted to a product.
What is enzyme catalysed reaction?Enzyme catalysis is the increase in the rate of a process by a biological molecule, an "enzyme". Most enzymes are proteins, and most such processes are chemical reactions. Within the enzyme, generally catalysis occurs at a localized site, called the active site.
The model is based on the idea that the reactant passes through a transition state within the enzyme-substrate complex before the reactant is converted to the product.
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