_____ is a common nutrition-related sign or symptom of early pregnancy that occurs in many healthy pregnant women. question 19 options: fatigue hypertension gestational diabetes pernicious anemia
The right option is fatigue
Fatigue is a feeling of tiredness, lack of energy and motivation. Fatigue is a symptom of iron-deficiency anemia, which is common in pregnancy. During pregnancy, hormonal changes such as increased progesterone levels, physical changes and emotional changes occur in the body and this can contribute to decreased energy resulting in fatigue.Fatigue, typically stemming from morning sickness due to elevated hormones, is a common nutrition-related symptom in early pregnancy. Hypertension and gestational diabetes usually occur later in pregnancy while pernicious anemia is not associated with pregnancy.
Explanation:The common nutrition-related sign or symptom of early pregnancy mentioned in the question is likely fatigue. Fatigue can occur due to the body's reaction to the increased circulation of pregnancy-related hormones such as estrogen, progesterone, and hCG. These hormones can lead to symptoms such as nausea and decreased intestinal peristalsis, often referred to as 'morning sickness', which can persist all day and contribute to feelings of fatigue.
While hypertension and gestational diabetes can develop during pregnancy, they are not typically symptoms of early pregnancy. Pernicious anemia is not associated with pregnancy but is a condition where the body is unable to absorb vitamin B12 from the gastrointestinal tract.
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“Many species of roundworms are parasites of plants and animals. How is a roundworm’s body plan related to its function as a parasite?
The roundworm's body is a function of a parasite because it gets stronger when it eats digested food in animal's body and that harms the animal. They are in the same body and the parasite lives on the host.
What type of body plan do roundworms have?Nematodaroundworms Roundworms are bilaterally symmetrical, worm-like organisms that are wrap by a strong, flexible noncellular layer called a cuticle.
Their body plan is simple. The cuticle is secreted by and surrounds layer of epidermal cells.
Thus, They are in the same body and the parasite lives on the host.
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Which type of change exemplifies biological evolution?
Change in physical structure is a type of change that exemplifies biological evolution in an organism.
What is biological evolution?Biological evolution is the change in inherited traits in populations of organisms with the passage of time. Modification of traits occurs by gene mutation, genetic recombination or genetic drift.
So we can conclude that change in physical structure is a type of change that exemplifies biological evolution in an organism.
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Euglena is a one-celled protist that has traits of both plant and animal cells. It contains chlorophyll and has an eye spot to detect light. Yet, it has a flagella for movement through its aquatic environment and can ingest food through its gullet. A colony of euglena are exposed to sunlight. Based on the traits of this organisms, what would you expect to happen?
a
bc of it uses photosynthesis
A stabbing victim sustained a perforation to his large intestine. from the outermost layer to the innermost layer, what is the order in which the knife penetrated his intestine?
When genes from different organisms are pieced together, _____.
a. this is referred to as transmorphic DNA
b. this is referred to as transgenic DNA
c. this is referred to as recombinant DNA
d. scientists can destroy the genes?
Recombinant DNA can be also re refers to as chimeric DNA and they created from the combination of two or more strands of DNA. Recombinant DNA involves the manipulation of genes in other to produce or attain a certain gene expression. Thus, combination of two different DNA is the most common process in recombinant DNA.
Avery could barely detect sweetness in a sip of water from a pitcher in which one quarter of a teaspoon of sugar was mixed into a half gallon of water. for taste, this is avery's:
A type of asexual reproduction where part of an organism breaks off and develops as a new organism
The answer is budding. IN this type of asexual reproduction, the offspring are genetically identical to the parent. Examples of an organism that reproduces by budding include hydra, starfish, corals, and sponges. Yeast, fungi, also reproduce asexually by budding.
Answer:
budding!
Explanation:
i got this correct on my quiz :)
anyone did Biology B, Unit 4 Analyzing Digestion Portfolio?
The central dogma of molecular genetics, which follows information flow within the cell, is as follows: dna---->__________---->rna---->__________---->protein
a. translation; transcription
b. synthesis; polymerase
c. transcription; translation
d. intron; exon
All cells come from preexisting cells. a cell divides its dna in a process known as ____________ and its cytoplasmic contents in a process known as ____________ , producing two new daughter cells while all life begins as a single cell, the human body is not just one cell type. cells that can divide without becoming a specific cell type (i.e. skin cells) are known as ____________ . when stem cells undergo mitosis and divide, they produce two cells. one cell remains a stem cell and the other is a partially specialized cell known as a ____________ cell. cells undergo a process of specialization or determination called ____________ to become neurons, muscle cells, or skin cells. stem cells are the source of all different cell types.
A cell creates two new daughter cells by replicating its DNA (a process known as "replication") and dividing its cytoplasm (a process known as "cytokinesis"), respectively.
Though the human body is made up of many different types of cells, all life begins as a single cell. Stem cells are cells that have the capacity to divide without committing to a particular cell type (such as skin cells).
When stem cells divide through mitosis, they create two new cells. One cell continues to be a stem cell, and the other is a progenitor cell, which is a partially specialised cell.
Thus, to become neurons, muscle cells, or skin cells, cells go through a process of specialisation or determination called differentiation. All different types of cells are derived from stem cells.
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Final answer:
Cells replicate their DNA through mitosis and divide the cytoplasm by cytokinesis, resulting in two daughter cells. Stem cells can divide to produce more stem cells or differentiate to become progenitor cells, which further specialize through differentiation into various cell types.
Explanation:
All cells come from preexisting cells. A cell divides its DNA in a process known as mitosis and its cytoplasmic contents in a process known as cytokinesis, producing two new daughter cells. While all life begins as a single cell, the human body is composed of many different cell types. Cells that can divide without becoming a specific cell type, such as skin cells, are known as stem cells.
When stem cells undergo mitosis and divide, they produce two cells. One cell remains a stem cell and the other becomes a partially specialized cell known as a progenitor cell. Cells undergo a process of specialization or determination called differentiation to become neurons, muscle cells, or skin cells. Stem cells are the source of all different cell types in the body.
Inhalation and exhalation move air into and out of the lungs. what happens when you inhale and exhale? drag the labels to the correct locations on the flowchart to identify the steps of inhalation and exhalation. view available hint(s) resethelp
What statement best summarizes the relationship between photosynthesis and cellular respiration?
How often would a restriction enzyme such as not i which has 8 nucleotides?
A restriction enzyme such as Not I, which recognizes an 8-nucleotide sequence, would be expected to cut a DNA molecule approximately once every 65,536 base pairs (bp), according to the mathematical probability of occurrence of a specific sequence of nucleotides in a random distribution of DNA.
Restriction enzymes are specialized proteins that identify specific, short sequences of DNA and cut the molecule at those precise locations. The frequency at which a particular restriction enzyme cuts the DNA depends on the length of its recognition sequence. Since there are four types of nucleotide bases (adenine, cytosine, guanine, and thymine), each position in the sequence has a 1 in 4 chance of being any particular base. Therefore, the probability of an 8-nucleotide sequence occurring is (1/4)8, or 1 in 65,536 for any random segment of DNA. The enzyme Not I, for instance, would theoretically generate a cut once in every 65,536 base pairs in a stretch of DNA. However, the actual frequency can vary due to non-random base composition and other factors like DNA methylation that can inhibit enzyme activity.
What mineral is not included in children's multivitamin/mineral supplements because it is a major cause of unintentional poisoning deaths?
The only property listed below that is not characteristic of gases is
When genes in the same location on homologous chromosomes vary slightly in sequence with respect to each other, the genes are called?
The gene that causes sickle cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. this gene provides some protection from malaria, a serious disease that is wide-spread in sub-saharan africa. discuss an evolutionary process that could account for the different percentages among residents of the two regions.
Without wildfires, forest ecosystems would be more likely to suffer from outbreaks of plant disease. please select the best answer from the choices provided t f
Answer:True.
Explanation: The wildfires has many positive aspects as compared to its negative ones. The forest fire can be a result of human activities or it can be due to natural sources.
The forest fire helps in removing the soil contamination and hence prevents the plant disease. Though it eradicated the animals and loss of habitat takes place but besides this there are many more advantages of forest fire.
It helps in removal of the diseased plants and harmful insects that spreads diseases.
Although brian has not gained weight recently, he remains slightly overweight. how many kcalories per gram does alcohol provide as a source of energy?
The answer is: Alcohol provides approximately 7 kcalories per gram.
Ethanol, a type of alcohol, is a source of energy for the human body, providing about 7 kilocalories (kcal) per gram.
Unlike essential nutrients, alcohol is not required for survival.
Carbohydrates and proteins each provide around 4 kcal per gram, while fats offer about 9 kcal per gram.
Consuming alcohol adds to total caloric intake.
The body prioritizes metabolizing alcohol over other macronutrients, as alcohol cannot be stored.
This metabolic priority can lead to fat accumulation from other sources if caloric intake surpasses energy expenditure.
Excessive caloric intake, including from alcohol, may contribute to weight management issues, such as being slightly overweight.
Moderation in alcohol consumption is crucial, and its caloric contribution should be factored into a balanced diet and healthy lifestyle.
Why is cell theory classified as a theory and not a hypothesis
Which nonfood item is the most common cause of respiratory arrest in infants?
Excess fat _____ represents a greater risk to health than excess fat elsewhere on the body. under the skin around the hips deep within the abdomen deep within the shoulders under the skin of the chest
Nuclear dna can be extracted from bones and teeth to determine personal identification. if, however, the nuclear dna is degraded or damaged, there is another substance which is more plentiful and durable that can be analyzed. what is the name of this substance?
When the nuclear DNA is degraded or damaged, mitochondrial DNA (mtDNA) is often used in its place for analysis. This is because it's more plentiful and durable. MtDNA is a crucial tool used in fields such as anthropology and forensics for studies related to human evolution, migration patterns, and personal identification.
Explanation:In scenarios where nuclear DNA is degraded or damaged, mitochondrial DNA (mtDNA) can be analyzed. This is because mtDNA is more durable and plentiful compared to nuclear DNA. Since it is passed down from mothers to their offspring without recombination, mtDNA can be traced back to a common female ancestor known as 'Mitochondrial Eve'.
MtDNA is useful in determining the divergence of various human populations. Its mutation rate is higher than that of nuclear DNA, making it a good tool for tracking changes in a relatively short evolutionary timeframe. Hence, it's applied extensively in anthropological studies and forensics. Professionals in these fields can use mtDNA to gain a substantial amount of information about human evolution, migration patterns, and individual identification.
While nuclear DNA provides a genetic blueprint for individuals or species, in cases where it is damaged or unavailable - such as from ancient or degraded samples – mitochondrial DNA provides a reliable alternate source of genetic information.
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what is the formula for fermentation
The balanced chemical reaction for the fermentation of glucose is C6H12O6 → 2 C2H5OH + 2 CO2, converting one molecule of glucose into two molecules of ethanol and two molecules of carbon dioxide, a process essential in making bread and alcoholic beverages.
Explanation:Chemical Formula for Fermentation
The chemical process of fermentation involves the breakdown of sugars by yeast or bacteria under anaerobic (without oxygen) conditions. A common example of this biochemical process is the conversion of glucose (C6H12O6) into ethanol (C2H5OH) and carbon dioxide (CO2). The balanced chemical reaction for the fermentation of glucose can be represented as follows:
C6H12O6 → 2 C2H5OH + 2 CO2
Through this reaction, one molecule of glucose is converted into two molecules of ethanol and two molecules of carbon dioxide. This process is widely used in the production of alcoholic beverages such as wine and beer, and in baking to make bread dough rise.
You find a cell of a type you have never seen before. the cell has both a nucleus and a cell wall. therefore, you conclude that it must be a(n) _____ cell.
Which is an example of an aptitude?
a. a physical trait inherited by parents
b. a natural talent for playing tennis
c. a dog that salivates as a bell rings
d. none of these?
Answer:a
Explanation:
The example of an aptitude is option b: a natural talent for playing tennis.
Aptitude refers to a person's natural ability or potential to learn and perform in certain areas without having received prior training. It is distinct from an acquired skill or knowledge, which is developed with practice and experience. Option a describes a physical trait, which is more about genetic inheritance than a capability for learning or performing in a specific area. Option c illustrates a conditioned response in a dog, which is a learned behavior rather than an innate talent. Therefore, option b, which refers to a natural talent for playing tennis, best exemplifies what an aptitude is
develop into a skill through practice and instruction.
How long does it take for pollutants to be flushed out of the great lakes into the ocean?
What is a likely evolutionary advantage of sexual reproduction over asexual reproduction? a sexual reproduction involves fewer steps. b there is a lower chance of using up the resources in a given environment. c sexual reproduction results in variation in the offspring. d sexual reproduction is more costeffective?
The primary evolutionary advantage of sexual reproduction over asexual reproduction is that it results in increased genetic diversity, providing advantages in changing environmental conditions.
Explanation:The most likely evolutionary advantage of sexual reproduction over asexual reproduction is the fact that sexual reproduction results in genetic diversity or variation among offspring. This variation allows populations to adapt to changing environments more quickly because it increases the probability that some individuals will have characteristics suited to the new conditions, thereby allowing the species to survive and reproduce. This contrasts with asexual reproduction, which results in offspring that are exact clones of the parent, thus less able to survive changes in the environment.
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Traits, conditions, or diseases that are passed down through families through one of the X or Y chromosomes.
its sex-linked recessive