Which of these events occurs first? select one:
a. cleavage
b. implantation
c. formation of the placenta
d. gastrulation?
Gastrulation occurs first in the sequence of events during embryonic development.
Explanation:Gastrulation occurs first in the sequence of events during embryonic development. Gastrulation is the process in which the cells in the blastula rearrange themselves and form three layers of cells, called the ectoderm, mesoderm, and endoderm. These layers will differentiate into different organ systems. The other events listed, such as cleavage, implantation, and formation of the placenta, occur after gastrulation.
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During a newborn assessment the nurse identifies that the temperature, pulse, respirations, and other physical characteristics are within the expected range. the nurse records these findings on the clinical record. legally, how should the nurse's action be interpreted?
In what ways are driverless cars safer than human drivers?
Answer:
Driverless cars may be safer than cars with drivers because they do not get tired or distracted, and they do not engage in risky driving practices such as speeding.
Explanation:
The thalamus __________. is the region in which complex visual stimuli are distinguished and interpreted
The four most common elements found in living organisms are ________. the four most common elements found in living organisms are ________. oxygen, calcium, hydrogen, and carbon carbon, oxygen, nitrogen, and hydrogen carbon, oxygen, potassium, and calcium nitrogen, oxygen, phosphorus, and carbon
The four most common elements found in living organisms are carbon, oxygen, nitrogen, and hydrogen.
The correct option is B; carbon, oxygen, nitrogen, and hydrogen.
What are the common elements found in living organisms?Carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur are the six elements that are most commonly found in living organisms.
The six most prevalent elements in biomolecules or biological macromolecules are these six. Large, organic molecules known as biomolecules are essential to all living organisms.
Among the six however, the four most common elements found in biomolecules in living organisms are carbon, oxygen, nitrogen, and hydrogen.
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Any substance ingested by a pregnant woman that can cause a fetal abnormality is called a ________
Which of the following best shows her primary structure relates to protein function
A.) proteins are sensitive to change in pH
B.) high temperatures cause proteins to denature
C.) The shape in chemistry of in enzyme’s active site determine its function
D.) Changing one amino acid in the protein hemoglobin causes sickle cell in anemia
Determine whether each term on the left is described as haploid or diploid. then click and drag each to the appropriate category on the right.
During a psychiatric assessment, the nurse observes a patient's facial expression is without emotion. the patient says, "life feels so hopeless to me. i've been feeling sad for several months." how will the nurse document the patient's affect and mood?
why must nations sometimes work together to solve environmental problems
Nations must work together to solve environmental problems because environmental problems are; Global problems
Environmental pollution leads to degradation of the environment, because environmental pollution leaves negative effects on the physical and biological components of the environment.
Some of the Negative global effects of environmental pollution is the greenhouse effects which is caused by the indiscriminate release of ( CFC's ) into the atmosphere. therefore nations must work together to solve environmental problems.
hence we can conclude that Nations must work together to solve environmental problems because environmental problems are Global problems.
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Write a paragraph describing how Earth would be different if photosynthetic plants had not evolved.
The evolution of photosynthesis refers to the origin and subsequent evolution of photosynthesis.
What is photosynthesis?Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy.
Photosynthetic plants photosynthesise carbon dioxide and water to produce oxygen and glucose. Without photosynthetic plants evolving there eukaryotes would have extremely different respiratory systems. Eukaryotes (including plants) currently respire glucose using oxygen on a cellular level. If photosynthetic plants were not present there would be much less oxygen in the air. Eukaryotes therefore would evolve completely different ways of respiring to release energy.
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Hemophilia is a blood clotting disorder that is a sex-linked trait carried on the X chromosome. If a woman with hemophilia and a man without the disorder have two sons and two daughters, how many of their children would have hemophilia?
a.none
b.one
c.two
d.four
The pointed tip of the heart that is directed toward the left hip is called the
When needed for a source of energy fatty acids are broken down into?
muscular dystrophy is an inherited genetic disease that causes the muscles to what
atrophy, or breakdown
The process in which yeasts break down sugars and produce carbon dioxide and alcohol is called ____________________ fermentation.
(02.01 HC)
While looking at a cell under a microscope, a scientist is able to see a biological molecule. This molecule is a nucleic acid with a ladder structure and contains the nitrogenous bases adenine, thymine, cytosine, and guanine. Based on this information, what conclusion can the scientist draw regarding this nucleic acid? (2 points)
The nucleic acid is RNA and would be found in the cell's nucleus.
The nucleic acid is RNA and would be found in the cytoplasm.
The nucleic acid is DNA and would be found in the cytoplasm.
The nucleic acid is DNA and would be found in the cell's nucleus.
Answer:
The correct answer will be option the nucleic acid is DNA and would be found in the cell's nucleus.
Explanation:
Two types of nucleic acids are found in the organisms - DNA and RNA, which acts as genetic material. Although they both are the nucleic acids they possess certain structural differences in their sugar component and nitrogenous bases.
According to the question, the nucleic acid shows four bases adenine, thymine, cytosine and guanine which are present in the DNA as RNA do not contain thymine but contain uracil instead of that. This DNA is usually present in eukaryotes in packed forms inside a small organelle called Nucleus.
Thus, option the nucleic acid is DNA and would be found in the cell's nucleus is the correct answer.
The nurse is caring for a client who has a tracheostomy tube with a high-volume, low-pressure cuff. what does the cuff prevent?
According to the scenario, the cuff that prevents the process is known as Mucosal necrosis.
When should you deflate the cuff on a tracheostomy?The cuff will definitely deflate the mechanisms of tracheostomy when neither mechanical ventilation nor a risk of gross aspiration is present. Another consideration is to change the patient to a cuffless tracheostomy tube. The definition of aspiration is when any food, liquid, or other matter passes below the vocal folds.
According to the context of this question, if an individual is used to inflate the cuff, he/she needs to inject air into the adaptor at the end of the pilot balloon. Inject the least amount of air needed in order to adequately create a seal around the tube. The amount of air necessary will vary depending on the diameter of the tracheostomy tube and the patient's trachea.
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List five cell organelles and describe their function. Use complete sentences.
Spina ____________________ is a congenital defect that occurs during early pregnancy when the spinal canal fails to close completely around the spinal cord to protect it.
Smooth muscles are slow to relax and slow to contract. explain why this is and why this is important.
​police officers often have high levels of __________, otherwise known as the stress hormone.
Beetles are typically the first insects present on human remains.
True
False
In a eukaryotic cell, transcription takes place _____. in the nucleus in the rough endoplasmic reticulum on free ribosomes on the cell membrane in the cytoplasm
In a eukaryotic cell, transcription takes place in the nucleus .Transcription is the process by which genetic information encoded in DNA is used to synthesize RNA molecules.
The nucleus is a membrane-bound organelle found in eukaryotic cells that contains the cell's DNA. Within the nucleus, DNA is organized into structures called chromosomes. Transcription involves the enzyme RNA polymerase binding to a specific region of DNA called the promoter. The DNA double helix unwinds, and RNA polymerase uses one strand of the DNA as a template to synthesize a complementary RNA molecule known as pre-mRNA.
The pre-mRNA molecule is then processed through a series of modifications, including the addition of a cap structure at one end and a poly-A tail at the other. Additionally, non-coding regions called introns are removed, and the remaining coding regions called exons are spliced together. These modifications produce a mature mRNA molecule that can be transported out of the nucleus and into the cytoplasm for further processing and translation.
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The Apache taxi company charges $2.50 to pick up a passenger and then adds $1.95 per mile. Issac was charged $27.46 to go from one city to another. If x represents the number of miles driven by the taxi, which linear equation can be used to solve this problem, and how many did Issac travel, rounded to the nearest tenth?
Succession performs a variety of functions within ecosystems. What is the main reason that succession is important in maintaining ecosystems? a. Succession allows the earth to change. b. Succession ultimately leads to climax communities, which are stable and sustainable. c. Succession keeps pollution from harming ecosystems. d. Succession allows simple organisms to play a larger role in ecosystems than normal. Please select the best answer from the choices provided
Correct answer: B). Succession ultimately leads to climax communities, which are stable and sustainable
Ecological succession is the process, which involves the change in the species structure over a time. The ecological community starts with the few animals and plants and it develops into a complex community until it becomes stable as a climax community.
A Climax community is a type of ecological community in which all the species of animals and plants are in a stable state and exist in a balanced state with each other and with the environment. It is a final stage of succession, which is long-lasting and stable until disturbed by the human intervention.
Will give brainiest answer if it’s correct!
Martha has been diagnosed as having vaginismus. besides intercourse, in what other scenario would martha experience the difficulty associated with this condition?
a. sexual arousal by men
b. masturbation to orgasm
c. urination
d. a vaginal examination
How can fossils BEST help paleontologists and biologists classify organisms?
Answer:
Explanation:
A palentologists can be define as a scientists who studies the fossil. By studing the fossils they determine the form and features of primitive living organisms used to live on earth. On examining the features these organisms can be classified in different categories and their evolutionary history can be traced.
In the presence of oxygen, we use __________ to fuel atp production from glucose. what process do plants use to fuel atp production from glucose?