Answer:
because all green plants release oxygen and non- green plants do not release oxygen.
Explanation: One of the first uses of an isotopic tracer in biology was in the determination of the source of the oxygen produced by photosynthesis. Using a heavy isotope of oxygen, 18O, to label one of the two reactants in the photosynthetic process, Samuel Ruben and collegues at UC Berkeley were able to determine that the oxygen gas came not from carbon dioxide, but water.
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Match each structure to its function anther protects the flower bud ovule produces pollen sepal contains egg cells petal O surrounds the reproductive structures
Answer:
anther: produces pollen
ovule: contains egg cells
sepal: protects the flower bud
petal: surrounds the reproductive structures
Explanation:
Answer:
anther: produces pollen
ovule: contains egg cells
sepal: protects the flower bud
petal: surrounds the reproductive structures
A researcher is studying the effects of caffeine on the rate of sunflower growth to determine if caffeine stimulates sunflower plants to grow taller. What is the null hypothesis for this experiment?
Answer:
A null hypothesis would be that caffeine doesn't stimulates sunflower plants to grow taller.
Explanation:
Null hypothesis: In research methods, the term "null hypothesis" is described as a type of hypothesis that proposes that there's no difference between specific characteristics of a particular data gathering process or population.
Function: The main aim of "null hypothesis" is to prove whether or not a specific test or study is supported and is separated from the researcher's own decisions and values. It is responsible for providing a way to a given study or test and is represented by H0.
What causes the stars to seem to disappear in the city skyline at night?
Оа
Small buildings
b
The sun
The moon
ос
Od
Light pollution
Stars seem to disappear from the city skyline at night due to light pollution caused by artificial lights.
What is light pollution?It is the excessive or less use of artificial light that disrupts the natural patterns of wildlife, disrupts human sleep, and conceals the stars in the sky.
Why do stars disappear from the city skyline?It is because in the city skyline there is excessive use of artificial lights and there is not a portion left which is not encroached by artificial lights.
Hence, option d) light pollution is the correct answer.
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what is an outcome of lack of oxygen?
Answer:
Blood carries oxygen to the cells throughout your body to keep them healthy. Explanation:
Hypoxemia can cause mild problems such as headaches and shortness of breath. In severe cases, it can interfere with heart and brain function. Hypoxemia that causes low oxygen levels in your body's tissues is called hypoxia.
The outcome of lack of oxygen To maintain your body's cells healthy, blood provides oxygen to every cell.
What is cell ?The smallest unit that can sustain life on its own and makes up all living things, including the body's tissues. The cell membrane, the nucleus, and the cytoplasm are the three primary components of a cell. The substances that enter and leave the cell are governed by the cell membrane, which encloses the cell.
There are two different types of cells: prokaryotic cells, which lack a nucleus but still have a nucleoid area, and eukaryotic cells, which have a nucleus. Eukaryotes can either be single-celled or multicellular, in contrast to prokaryotes, which are single-celled organisms.
From bacteria to humans, cells give all living things their structure and functionality. They are regarded as the tiniest form of life by scientists.
Thus, To maintain your body's cells healthy, blood provides oxygen to every cell.
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What are some benefits to evolutionary adaptations?
Answer:
1.A new species
2.Adding to world population
3.More to learn
Explanation:
a population of 100 insects that live in an area 100 square meters has a density of 1 insect per square meter. what’s this an example of?
Name the nitrogen bases that pair up to make the rungs of the DNA ladder.
Answer:
Two of the bases are purines- adenine and guanine. The pyrimidines are thymine and cytosine.
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Answer:
A) It helps to separate the chromosomes
Explanation:
Match the word to the best sentence.anticodon, codon, complementary strand, DNA, DNA replication, mRNA, nucleotide, transcription, translation, tRNA
Group of answer choices
A three base pair sequence on mRNA that codes for the addition of a specific amino acid to build a protein.
This brings amino acids to the ribosome during translation to help make a polypeptide.
A three base pair sequence found on tRNA that will pair with the codon during protein synthesis.
The process that occurs during the S phase of the cell cycle and enables each cell produced during mitosis to have a complete set of genetic instructions.
This nucleic acid carries the instructions to make a protein from the nucleus to the cytoplasm.
One of the monomers of a nucleic acid, that is made of a sugar, a phosphate group and a nitrogen base.
Each half of the double helix that pairs together based on the base pairing rules.
The process of making a mRNA sequence by reading a gene on the DNA in the nucleus of a cell.
This polypeptide stores the genetic information in living organisms and is found in the nucleus of a eukaryotic cell.
After a mRNA strand attached to a ribosome, this process occurs and a protein is made.
Answer:
Is C
Explanation:
In translation, the cell uses the genetic information contained in mRNA to make the proteins that
carry out the cell’s work. The cell translates the code contained in the mRNA into a new
language, the language of proteins, based on amino acids. Other types of RNA, such as transfer
R
In this section, you will be introduced to the components involved in the process of protein
synthesis, called translation. This process requires a protein/RNA complex called the ribosome
Identify the letter of the choice that best completes the statement or answers the question. When determining the number of significant digits in a measurement,
Answer:
B
Explanation:
Identify the letter of the choice that best completes the statement or answers the question. When determining the number of significant digits in a measurement. When determining the number of significant digits in a measurement,
a. all zeros are significant.
b. all nonzero digits are significant.
c. all zeros between two nonzero digits are not significant.
d. all nonzero digits are not significant.
According to the rule of significant figures;
all nonzero digits in a number are significant. For example, 161.45 has 5 significant digits. all zeros after nonzero digits without decimal points are not significant. For example, 12300 has 3 significant digits.all zeros located between nonzero digits are significant. For example, 2002 has 4 significant digits.leading zeros in a digit are not significant. For example, 00123 and 0.0123 have 3 significant digits each.Hence, the correct option is B.
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The letters X and Y represent missing events. Which option correctly replaces the letters X and Y?
in X, the homologous chromosomes separate, which increases genetic diversity because of Y.
OX: anaphase
Y: independent assortment
OX: anaphase 11
Y nondisjunction
Ox prophase 1
Y nondisjunction
OX: prophase 11
Y crossing over
Answer:
X: anaphase
Y: independent assortment
Explanation:
Homologous chromosomes seperate during meosis 1 while chromosomes seperate at meosis 2.
Chromosomes are structures present in the nucleus of plant and animal cells. It transfers the genetic information from parent to offspring. Humans have 23 pairs of chromosomes. In which 22 pairs are autosomes while the 23rd pair is the sex chromosome.
The correct answer is:
Option A. OX: anaphase and Y: independent assortment
The explanation for this is:
In anaphase 1 of meiosis 1, the homologous chromosome separates.In an independent assortment, the chromosomes move randomly towards the pole of the cells.Independent assortment of the chromosomes raises the genetic diversity.In meiosis, recombination happens due to which each gamete carries a unique set of DNA.Therefore, in anaphase, the homologous chromosomes separate, which increases genetic diversity because of independent assortment.
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what is the effect of glucagon?
Dr. Sanchez and her team have observed an unusual star in the Andromeda galaxy. Their data suggests that the star is being consumed by a nearby black hole. They write a scientific paper about their work and submit it to a scientific journal. Other scientists read their paper and look for the unusual star as well. The other scientists are participating in which activity?
Answer:
so the answer is peer review
Explanation:
Yes, other scientists are participating in this activity not in a direct way but in an indirect way. The scientists are participating in peer review.
What is galaxy?The scientific paper was written by scientists which provide the data and conclusion of entire experiments. To write scientific experiments we need to collect data, frame hypotheses, research methodology, and find out the conclusion are some of the steps to writing a scientific paper.
Testing hypotheses often involves designing experiments. In the given experiment Dr. Sanchez found that star is consumed by a nearby blackhole. But other scientist found the unusual star as well.
This suggests that both scientist thought on different aspect. This suggest peer review.
Therefore, Yes, other scientists are participating in this activity not in a direct way but in an indirect way.
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Help Please. Is 15 points fair for 5 questions?
1. Show the possible outcomes if a women who is a carrier for baldness has children with a normal man.
Can they have a son with baldness?
Answer:
Yes they can.
Explanation:
I defined the genotypes and possible outcomes in the image attached
The photos shown below illustrate a case of synpolydactyly, a genetic abnormality characterized by two phenotypes: partially or completely duplicated fingers or toes, and webbing between fingers or toes. The same mutations that give rise to the human phenotype also give rise to a similar phenotype in mice. In which family of genes do you think these mutations occur?
Answer:
The correct answer is - Hox gene.
Explanation:
Synpolydactyly is a joint presentation of syndactyly is the condition of the partially or completely duplicated fingers or toes and weblike development in between toes and fingers.
This takes place due to the Gene of HOX family that has mutated to rise this condition in the individual. The gene that is responsible for this genetic condition is the mutation in the D13 gene.
The correct answer is - Hox gene
Dialectical behavior therapy (DBT) is used to treat all of the following EXCEPT
O schizophrenia
O borderline personality disorder
O drug addiction
O chronic suicidal behavior
A towing company charges $40 to hook a car and $1.70 for each mile that is towed. Write an
equation that represents the total cost y for x miles towed. Find the y-intercept and interpret
its meaning in the context of the situation.
Given:
Fixed charges = $40
Variable charges = $1.70 for each mile.
To find:
The equation that represents the total cost y for x miles towed.
Find the y-intercept and interpret its meaning in the context of the situation.
Solution:
Let y be the total cost for x miles.
Fixed charges = $40
Variable charges for 1 mile = $1.70
Variable charges for x mile = $1.70x
Now,
Total changes = Fixed charges + Variable changes
[tex]y=40+1.70x[/tex]
Therefore, the required equation is [tex]y=40+1.70x[/tex].
Putting x=0 in the above equation, we get
[tex]y=40+1.70(0)[/tex]
[tex]y=40+0[/tex]
[tex]y=40[/tex]
Therefore, the y-intercept is 40. It means the charges to hook a car is $40 if it is towed 0 miles.
How do you think the rock layers and fossils found in Red Rock Canyon can provide evidence for Earth's geologic history? What types of information can scientists learn from fossils?
Answer:
Fossils found in Canyon are crinoids, brachiopods, and sponges.
Explanation:
The rock layers and fossils found in Red Rock Canyon can provide evidence for Earth's geologic history because the canyon has marine fossils such as crinoids, brachiopods, and sponges and also contains terrestrial fossils such as impressions of leaf, dragonfly wing, scorpions, centipedes, and reptiles. So we can say that Red Rock Canyon provides a lot of evidences about geological history. The scientists learn a lot of information from fossils such determine the age of the rock, relation of different organisms with one another and ancient environments.
Describe how an organism's genotypes codes for their phenotype. In your answer use the vocabulary terms: Phenotype, genotype, DNA, mRNA and protein. Please dont answer if you dont know it.
Answer:
The organism's genotype encodes their phenotype because the genotype corresponds to the characteristic that is determined by genes —formed by fragments of DNA— which are transcribed into mRNA to be translated into amino acid sequences in the synthesis of proteins, determining the morphological and functional characteristics of an organism, that is, its phenotype.
Explanation:
Genotype corresponds to the genetic information contained in the DNA, according to the sequence of nucleotides in its molecular structure. This genotype includes characteristics or polymorphisms that define the appearance and function of living beings.
Each DNA molecule constitutes a chromosome, formed by genes —DNA fragments— each of which determines specific characteristics.
When DNA is transcribed into mRNA, information is being sent that is necessary for the incorporation of amino acids into a protein that is being synthesized. The proteins, in turn, determine morphological and functional characteristics that constitute the phenotype of an individual.
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Answer:
Hi how are you doing today Jasmine
Please help, I’m confused and have little time!
1. How does your DNA differ from other peoples?how is it similar
2.How does your DNA differ from a strawberries DNA? How is it similar
Answer:
1.DNA is more than 99% similar between any two people. All the differences in how we look, feel, behave and the differences in our health are due to less than 1% difference
2.In humans each of these cells have 2 copies of the DNA, but in strawberries each of these have 8 copies of the DNA that means strawberries have 4 times as many copies of DNA as humans, making it 4 times easier to see.
Explanation:
Which provides the most direct source of energy for a hurricane?
O warm ocean water
O rising, swirling winds
O heating of the air by the sun
O friction with the ground
____ secrete enzymes which break down dead organic matter into smaller molecules that can be absorbed.
Answers:
Detritivore
Decomposer
Producer
Carnivore
how do hot objects preduce heat
Which of the following are true of enzymes?
Specific enzymes can only facilitate one or two reactions.
Enzymes are not changed by facilitating a reaction.
Enzymes lower the activation energy of a reaction.
Each specific enzyme can facilitate many different reactions.
Enzymes are specialized proteins.
Enzymes raise the activation energy of a reaction.
Answer:
Enzymes raise the activation energy of a reaction
How might an error during transcription affect the protein that is produced?
Answer:
the protein might be unable to function
What structure(s) in the nucleus of the cell is DNA found?
Answer:DNA is normally found as a loosely contained structure called chromatin within the nucleus, where it is wound up and associated with a variety of histone proteins. When a cell is about to divide, the chromatin coils tightly and condenses to form chromosomes
Explanation:
Which is not true in the following statements.
Binary fission is a form of asexual reproduction.
Budding is a form of reproduction.
Propagation is a form of asexual reproduction
Meiosis is a form of asexual reproduction.
What is the difference between droplet and airborne spread of viruses like the measles?
Answer:
droplet consists of exposure to larger, smaller and particles when a person is close to a infected person. airborne consist of smaller droplets even for greater distance