3. what is the area just superior to where the medulla joins the spinal cord where motor tracts cross?
Answers
The area just superior to where the medulla joins the spinal cord where motor tracts cross is your pons.
The medulla is the lowest part of the brain and connects to the spinal cord through the foramen magnum, an opening in the lower part of the skull. Just above the medulla is the pons, just below the central structures of the brain.
The medulla oblongata is at the base of the brain where the brainstem connects the brain and spinal cord. It plays an important role in transmitting messages between the spinal cord and the brain. It is also important for regulating the cardiovascular and respiratory systems. There is an anterior median fissure along the midline on the ventral surface of the medulla oblongata.
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Related Questions
rifying school.com About 78 of Earth's atmosphere is made of nitrogen gas. Certain types of __________convert nitrogen into in _____ through a process called ________ ________Most of the The nitrogen cycle happens ______________ ammonium released is taken up by plants and are converted into________ ______ and __________ Animals eat plants to get nitrogen. When decomposers break down animal wastes or dead organisms, nitrogen returns to the soil. The energy from lighting breaks apart nitrogen molecules in the air and mix with rain to return nitrogen to the soil
answer all pls
Answers
About 78% of Earth's atmosphere is made of nitrogen gas. Certain types of bacteria, known as nitrogen-fixing bacteria, convert nitrogen gas into ammonia through a process called nitrogen fixation.
What happens to the nitrogen cycle?Most of the nitrogen cycle happens in the soil, where the ammonia released is taken up by plants and converted into amino acids and other organic compounds. Animals eat plants to obtain nitrogen. When decomposers break down animal wastes or dead organisms, nitrogen is returned to the soil. Additionally, energy from lightning can break apart nitrogen molecules in the air, which then mix with rain to return nitrogen to the soil.
Thus, the nitrogen cycle is the process by which nitrogen, an essential element for life, circulates through the Earth's ecosystems. It involves several key steps, including nitrogen fixation, ammonification, nitrification, assimilation, and denitrification.
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What is skepticism?
a new scientific idea
being interested in new or different ideas
a general agreement among scientists about a scientific idea
the understanding that knowledge in a particular area can be uncertain
Answers
An attitude of skepticism or a tendency to be skeptical, either generally or with regard to a certain object.
What is skepticism and why is it important?In order to be skeptical, one must refrain from leaping to conclusions when examining a claim or an explanation. In the course of a study, it enables scientists to take into account every scenario and rigorously examine all available data.Doubt, dubiety, mistrust, suspicion, and uncertainty are some typical synonyms for skepticism. While all of these terms refer to a "lack of sureness about someone or something," scepticism denotes a refusal to accept something without concrete proof.A sceptic is someone who thinks that some or all of human knowledge is illogical. Skeptics contend that it is preferable to suspend believing rather than rely on the disputed byproducts of reason because even our finest methods for learning about the universe occasionally fall short of full certainty.To learn more about skepticism refer to:
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Answer:
D
Explanation:
The understanding that knowledge in a particular area can be uncertain
which term refers to the step of protein synthesis in which mrna is "read" to make protein?
Answers
The term that refers to the step of protein synthesis in which mRNA is "read" to make protein is called translation.
Protein synthesis is the process by which cells build proteins, which are essential for various cellular functions. The process involves two main stages: transcription and translation. During transcription, the DNA sequence is transcribed into messenger RNA (mRNA) by RNA polymerase enzyme. The mRNA carries the genetic code from the DNA in the nucleus to the ribosomes in the cytoplasm. In translation, the mRNA is read by the ribosome to synthesize the protein. The ribosome matches each codon on the mRNA with the appropriate amino acid, forming a polypeptide chain that folds into a functional protein. Protein synthesis is regulated by various factors, including hormones and environmental cues, and disruptions in the process can lead to various diseases and disorders.
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how many calories are provided in a food that contains 55g carbohydrates, 6g peotein, and 9g of fat. what percentage of the food is fat.
Answers
Answer:
The grams to calories calculator is a simple tool that allows you to convert the amount of macronutrients (expressed in grams) to calories.
Explanation:
guyss plz help me i will give yall extra pointss
Answers
Answer:
The water is transported to the top most leaves (and rest of its parts) of a tall tree by three actions:
1) root pressure (osmosis)
2) capillary action (adhesion)
3) evapotranspiration (cohesion)
Explanation:
The trees contain a series of interconnected tissues (xylem and phloem) that act as network for transport of water and nutrients throughout the tree. The root pressure and capillary action push the water, while the transpiration from the leaves pull the water. The root pressure is generated by osmotic movement of water from soil to the root tissues. The capillary action is caused due to adhesion of water molecules. However, root pressure and capillarity is thought to support only few meters of water column. The rest of the water transport (esp. in tall trees) is attributed to negative pressure generated by evaporation of water from leaves. This negative pressure creates a vacuum and pulls the water from the roots.
Hope this helps.
Which of the following observations provides the best evidence for the Endosymbiotic Theory of the origin of Eukaryotes?
a) Most bacteria are much larger than mitochondria and chloroplasts.
b) Prokaryotes, mitochondria, and chloroplasts all have cell walls.
c) Prokaryotes, mitochondria, and chloroplasts all have DNA and ribosomes.
d) Prokaryotes, mitochondria, and chloroplasts cannot reproduce themselves.
e) Prokaryotes, mitochondria, and chloroplasts are not surrounded by membranes.
Answers
(c) Prokaryotes, mitochondria, and Chloroplasts all have DNA and ribosomes provides the best evidence for the Endosymbiotic theory of the origin of Eukaryotes.
The Endosymbiotic theory proposes that eukaryotic cells originated from A symbiotic relationship between two or more prokaryotic cells. Specifically, it suggests that the mitochondria and chloroplasts of Eukaryotic cells were once free-living bacteria that were engulfed by Larger host cells and eventually evolved into organelles.
The presence of DNA and ribosomes in both prokaryotes and Mitochondria/chloroplasts is a crucial piece of evidence in support of this Theory. This is because DNA and ribosomes are essential components of All living cells and are responsible for the synthesis of proteins, the Building blocks of life.
Therefore, c) Prokaryotes, mitochondria, and Chloroplasts provides the Best evidence for the Endosymbiotic Theory of the origin of Eukaryotes.
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For a biologist studying a small fish population in the lab, which Hardy—Weinberg condition is easiest to meet?
A) no selection
B) no genetic drift
C) no gene flow
D) no mutation
E) random mating
Answers
The Hardy-Weinberg condition that is easiest to meet for a biologist studying a small fish population in the lab is no gene flow, option C is correct.
No gene flow refers to the absence of migration or movement of genes between populations. In a lab setting, it is relatively easier to control and isolate fish populations, preventing the introduction or exchange of genes from external sources. This can be achieved by maintaining closed systems, where fish populations are kept separate from other populations, ensuring no genetic material is exchanged.
On the other hand, meeting the conditions of "no selection," "no genetic drift," "no mutation," or "random mating" may be more challenging to achieve in a controlled laboratory environment due to factors such as limited genetic diversity, genetic drift in small populations, mutation rates, and behavioral constraints on mating, option C is correct.
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How many lights were used...
Answers
Answer:b
Explanation:
explain the difference between structure of the Rough ER and Smooth ER.
Answers
The bound ribosomes that are present on its surface give it a rough appearance. Protein synthesis and storage occur in rough ER. On the other side, a smooth ER aids in the retention of proteins.
How are proteins structured?
Amino acids, which are divided into several categories, make up proteins. Certain sequences of these essential amino acids exist, and the DNA regulates their configurations. As our bodies are unable to produce these necessary amino acids on their own, we need to consume a lot of protein-rich foods on a daily basis to maintain a steady rate of metabolism.
What amino acids make up a protein?
the amino acids. The monomer that constitute protein are amino acids. A protein is composed of one or so more polypeptides, which are individual linear amino acids chains. (We'll learn more about the origin of this name a little farther down the page.) Proteins can contain a variety of amino acids that are 20202020 in type.
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Active Transport Active transport moves substances from a more d_______ solution to a more c (against the c This requires e solution g from Active transport allows m__________ to be absorbed into plant root hairs from very d solutions in the soil. It also allows sugar molecules to be absorbed from ________ concentra- tions in the gut into the blood which has a higher sugar concen- tration. Sugar molecules are used for cell r
Answers
Active transport moves substances from a more dilute solution to a more diluted solution (against the concentration gradient). This requires energy from the cell. Active transport allows mineral ions to be absorbed into plant root hairs from very dilute solutions in the soil. It also allows sugar molecules to be absorbed from lower concentrations in the gut into the blood, which has a higher sugar concentration. Sugar molecules are used for cell respiration and other cellular processes.
Active transport allows minerals to be absorbed into plant root hairs from very dilute solutions in the soil. It also enables sugar molecules to be absorbed from lower concentrations in the gut into the blood, which has a higher sugar concentration. Sugar molecules are used for cellular respiration and other metabolic processes in cells.
What give the cell shape?
Answers
Answer:Cell shape and structure are controlled by the actin cytoskeleton, a self-assembled polymeric system that is dynamic.
Solve this please
What do I writ's in each category?
Answers
Answer:
mRNA: UUGGACCGGUACCUG
Codon: UUG GAC CGG UAC CUG
Anti-codon: AAC CUG GCC AUG GAU
Amino Acids: Asn-Leu-Ala-Met-Asp
Because of base pairing in DNA, the percentage of
Answers
Answer:
Since certain bases always appear in pairs, they will have equal percentages of the DNA composition. The percentage of adenine will equal the percentage of thymine, and the percentage of cytosine will equal the percentage of guanine. Together, these percentages will add to 100%.
Explanation:
The percentage of Adenine is always equal to the Thymine because of base pairing.
Complementary Rule:
It say that the percentage of Adenine is always equal to the Thymine and percentage of Cytosine is always equal to the percentage of Guanine.
Thus the total percentage of Purine and pyrimidine is 100%.
Therefore, the percentage of Adenine is always equal to the Thymine because of base pairing.
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I ran out of free responses plz help!!!!111!!!!11 Which structure in this plant cell represents the site of ATP production from photosynthesis? A, A large form in the cell. B, A small space for A T P production. C, Mitochondria. D, Nucleus. A B C D
Answers
Answer:
The correct answer is - option B. A small space (chloroplast).
Explanation:
The chloroplast is the cell organelle present in a photosynthetic organism like plants and algae which helps in trapping light and store in energy-rich organic molecules.
Stroma is the site where ATP production takes place in the chloroplast during the photosynthesis process. In light-dependent reactions during photosynthesis, ATP is produced in The thylakoid.
Thus, the correct answer is - option B.
Answer:
its b
Explanation:
give two examples of asexual Productions
Answers
Answer:
Asexual Reproduction Examples
Blackworms or mudworms reproduce through fragmentation. Hydras reproduce through budding. Organisms such as copperheads undergo parthenogenesis. Sugarcane can be grown through v
HELP ME GUYS PLEASE!
Answers
Answer: number 1
Explanation: that is when we could first sustain life because that is when we gained atmosphere and when we could hold carbon and oxogen
Answer:
I think the answer was A. Because before the ozone layer oxygen was not as much for life on earth to evolve so once the ozone layer started to form up it kept organisms and earth surface safe from direct uv lights so life started evolving.
pt has bowel obstruction, ng tube hooked to low-intermittent suction at least for the past 3 days, what type of blood gas values would you expect? - *metabolic
Answers
Pt has bowel obstruction, ng tube hooked to low-intermittent suction at least for the past 3 days, type of blood gas values would you expect is Metabolic alkalosis.
Intestinal obstruction is a blockage that can keep food or fluids from passing through the small intestine or colon. This can be caused by chronic inflammation and volvulus of the intestinal segments surrounding the intestinal mesentery itself. The characteristics of a person experiencing intestinal obstruction are abdominal pain, bloating, nausea, or constipation.
Metabolic alkalosis occurs when the body lacks acids or excess bases. This condition can be caused by excessive and prolonged vomiting until the body loses electrolytes. To overcome this, it is necessary to replace lost body fluids and electrolytes through inserting a nasogastric tube to low intermittent suction for 3 days.
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in drought conditions, many plants aren't able to survive because they do not have enough water to photosynthesize. which step in photosynthesis would be blocked by drought conditions?
Answers
In drought conditions, the step of photosynthesis that would be blocked is the light-dependent reactions which take place in the thylakoid membrane of the chloroplast.
Photosynthesis is the process by which green plants and some other organisms utilize sunlight to synthesize foods with the aid of chlorophyll pigments, carbon dioxide, and water. Photosynthesis in plants is carried out by organelles called chloroplasts, which contain chlorophyll pigment. Chloroplasts convert light energy into chemical energy in the form of ATP by using photosystems 1 and 2, which are complex arrangements of pigments and proteins.
The ATP produced is used in the dark reactions of photosynthesis (also known as the Calvin cycle), which occur in the stroma of the chloroplasts. The dark reactions take carbon dioxide and water to make sugars, with oxygen gas as a by-product. The process of photosynthesis can be divided into two parts: light-dependent reactions and light-independent reactions.
Light-dependent reactions: During light-dependent reactions, energy is obtained from sunlight and converted into chemical energy in the form of ATP, which is used in light-independent reactions. This process takes place in the thylakoid membrane of the chloroplasts. It is during this process that water is split into oxygen and hydrogen ions.
Light-independent reactions: During light-independent reactions, chemical energy in the form of ATP is used to convert carbon dioxide to glucose. This process takes place in the stroma of the chloroplasts.
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What are two ways that a flood can negatively impact an ecosystem?
Answers
Answer:
Floods Cause Sedimentation and Erosion.
Explanation:
a testcross is performed on an individual to examine three linked genes. the most frequent phenotypes of the progeny were abc and abc, and the least frequent phenotypes were abc and abc. what was the genotype of the heterozygous individual that is test-crossed with the correct order of the three genes?
Answers
The heterozygous person who was test-crossed with the right combination of the three genes has the genotype BaC/bAc.
What would be the most accurate unit to use to gauge the separation between two connected genes along a chromosome?A centiMorgan is a unit of measurement used to approximation genetic distance along chromosomes (also known as genetic map unit (mu) [94]). The geneticist Thomas Morgan and his student Alfred Sturtevant are credited with coming up with the term [95].
Do two genes have to be on different chromosomes for recombination to occur 50% of the time quizlet? Why or why not.No, two genes on the same chromosome will be connected and the frequency of recombination will be less than 50%.
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20 POINTS!! PLEASE HELP!!!!!
This is on the Khan Academy NGSS Biology course, and I'm stuck!
Which model best characterizes the genetic information in cells during fertilization and mitosis? Choose 1 answer:
Answers
The model that best characterizes the genetic information in cells during fertilization and mitosis is model A.
The correct option is A.
What happens in fertilization and mitosis?Two gametes joining together is referred to as fertilization.
During fertilization, the gametes containing a haploid number of chromosomes fuse to form a diploid zygote.
The division of duplicated chromosomes into two new nuclei occurs during the cell cycle stage of mitosis. A genetically identical cell is produced during cell division through mitosis, and the number of chromosomes is preserved.
Therefore, the chromosome number is doubled in fertilization but remains the same in mitosis.
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Answer:
Option A
Explanation:
Got it right on Khan Academy
Please help! original answers only please!
How would your chromosomes compare to someone else’s chromosomes?
Answers
Answer: since im a male i have an x and y chromosomes and females have x and x if you are female you can reverse this to go your way
Explanation:
In terms of shape, a Caucasian person has ______ orbits, an African-American person has ______ orbits, and an Asian person has ______ orbits.
Answers
Answer:
The right approach is "Oval, Square and Rounded".
Explanation:
There are two fairly different definitions of Caucasian, as well as the discrepancy between these often causes individuals to listen that another one of the definitions is wrong. A generally rounded skull, narrow steep slopes eye orbits, as well as a tear-shaped respiratory aperture provide Caucasian skull characteristics.So that the above is the correct answer.
Summarize how the nervous system interacts with at least 3 other systems in the body.
Answers
The nervous system interacts with other systems of the body as follows:
digestive system - the nervous system initiates the sensation of hunger in the body by coordinating the contraction of the smooth musclesmusculoskeletal system - the nervous system controls the contraction and relaxation of the smooth musclesrespiratory system - the nervous system controls the respiratory system by increasing or decreasing the respiratory depending on the concentration of oxygen or carbon dioxide in the body.What is the nervous system?The nervous system is the system that controls the activities of all other systems of the body.
The nervous system consists of two parts;
the central nervous system - made up of the brain and the spinal cordthe peripheral nervous system - consists of the sensory neuron and motor neurons as well the smooth muscles and the skeletal muscles.Impulse from outside or within the body is first sent to the central nervous system which interprets and sends out messages to the other body system to respond.
The central nervous system integrates ad coordinates the activities of the other body systems such as the respiratory system, the digestive system, the musculoskeletal system, the excretory system, etc.
Signals are sent to these systems from the central nervous system resulting in the action of these systems, for example, rapid breathing, bowel movement, etc.
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Is it possible that any of the individuals in the pedigree in Figure
14-7 are homozygous dominant?
Answers
Answer: Yes
Explanation:
FILL IN THE BLANK. the tendency of toxins to accumulate in top predators is called biological ________.
Answers
The tendency of toxins to accumulate in top predators is called biological Magnification.
The term "biological magnification" is frequently used to describe the process by which certain substances, such as heavy metals or pesticides, enter lakes, rivers, and oceans and then move up the food chain in progressively higher concentrations as they are incorporated into the diet of aquatic organisms like zooplankton. These aquatic organisms may then be consumed by larger fish, larger birds, animals, or humans. As they move up the chain, the substances become increasingly concentrated in tissues or internal organs. Because they are metabolized or excreted very slowly, bioaccumulates are substances that accumulate in living things as they consume contaminated food, water, or air.
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All of the following are presently available types of vaginal spermicides EXCEPT
suppositories.
contraceptive ring.
contraceptive film.
foam.
Answers
All of the listed options are types of vaginal spermicides, except suppositories.
Suppositories are not commonly used as a form of vaginal spermicide. The other options, including contraceptive ring, contraceptive film, and foam, are all popular forms of spermicide that work by creating a barrier to prevent the sperm from reaching the egg. They are usually inserted into the vagina before sexual intercourse to ensure maximum effectiveness.
It is important to note that while spermicides can be effective in preventing pregnancy, they should not be used as the sole form of contraception and should be combined with other methods such as condoms or hormonal birth control for the best results.
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List and describe 4 features of the ocean floor
Answers
Answer:
Humans beings haven't touched the ocean floor.but the features is -The deep ocean is dark, very cold and has tremendous pressure from the overlying water.Scuba divers can explore only to about 40 meters, while most submarines dive only to about 500 meters. Scientific research submersibles have explored the ocean’s deepest trenches, but most are designed to reach only the ocean floor.Today much of our exploration of the oceans happens using sonar and remotely operated vehicles.Features of the ocean include the continental shelf, slope, and rise. The ocean floor is called the abyssal plain. Below the ocean floor, there are a few small deeper areas called trenches. Features rising up from the ocean floor include seamounts, volcanic islands and the mid-oceanic ridges and rises.Fill in the blanks with the correct word for the Water Cycle. You can refer to all of your class readings and recordings to complete this assignment.
Answers
Answer:
Explanation:
1. condensation
2.precipitation
3.condensation
4.transpiration
5.surface runoff
6.evaporation
7.
During meiosis,(fill in the blank) chromosomes separate and go
to different gametes.
Answers
Answer:
homologous
Explanation:
yeah
The homologous chromosomes separate and go to distinct gametes.
Meiosis• In se-xually reproducing organisms, the formation of egg and sperm cells is known as meiosis.
• In meiosis, the diploid cells go through DNA replication, succeeded by two rounds of cell differentiation, giving rise to four haploid s-ex cells.
• The separation of homologous chromosomes takes place in meiosis I.
• During meiosis I, the separation of homologous chromosomes takes place into two distinct nuclei, resulting in the reduction of ploidy level in the first division.
Thus, the given blank can be filled with homologous.
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