The evolution of which characteristic allowed for the development and enlargement of complex internal organs? segmentation tissue body cavity exoskeleton
The answer is body cavity.
Correct answer: Body Cavity
The evolution of the body cavity allow the development of complex internal organs. It provides space to the organs to be contained in and perform their functions. In all the large and complex organism the body cavity is strong and and spacious in order to prevent organs from squishing into one another.
Hence, the correct answer would be Body Cavity.
What two systems work together to give cells oxygen and food?
dna and rna interact in the process of protein formation.which is a correct description of a step in protein synthesis that involves the action of nucleic acids?
a.dna molecules move into the cytoplasm to produce transfer rna
b.messenger rna is made on a dna template by the process of transcription
c.transfer rna functions to proofread rna to eliminate errors during replication
d.the original code for proteins is contained in rna which is transcribed and translated by dna
n peas, yellow seed color (Y) is dominant to green seed color (y). A homozygous green pea plant is crossed with a heterozygous yellow pea plant. What is the predicted phenotypic ratio of the offspring?
The predicted phenotypic ratio of offspring from crossing a homozygous green pea plant with a heterozygous yellow pea plant is 1:1, resulting in 50% yellow and 50% green pea plants.
Explanation:When a homozygous green pea plant (yy) is crossed with a heterozygous yellow pea plant (Yy), the predicted phenotypic ratio of the offspring can be determined by using a Punnett square analysis. The genotype of the green plant can only produce gametes with the recessive allele (y), while the yellow plant can produce gametes with either the dominant (Y) or the recessive allele (y). The Punnett square analysis would show that there is a 1:1 ratio of yellow to green phenotypes among the offspring since the heterozygous parent can pass on the dominant yellow allele (Y) with a probability of 50%, leading to yellow offspring, or the recessive green allele (y) also with a probability of 50%, leading to green offspring.
Final answer:
The predicted phenotypic ratio of offspring from a cross between a homozygous green pea plant and a heterozygous yellow pea plant is 50% yellow and 50% green seeds, as per Mendelian genetics and Punnett square analysis.
Explanation:
Predicted Phenotypic Ratio in Pea Plants
When a homozygous green pea plant (yy) is crossed with a heterozygous yellow pea plant (Yy), the predicted phenotypic ratio of the offspring would involve yellow and green seeds. In this cross, each parent contributes one allele for the seed color trait. The Punnett square analysis of this monohybrid cross reveals that the offspring will have a 1:1 ratio of yellow to green seeds since yellow (Y) is dominant over green (y). Half of the offspring will inherit a Y allele from the yellow parent and a y allele from the green parent, resulting in a yellow phenotype (Yy), and the other half will receive a recessive y allele from each parent, resulting in a green phenotype (yy).
The phenotypic ratio for this cross is therefore 50% yellow and 50% green seeds. This demonstrates a classic Mendelian inheritance pattern where a single trait is controlled by two alleles with one being dominant over the other.
The area of the brain that undergoes the most maturation during adolescence is the
When a sea horse sees a predator, it’s nervous system kicks into high gear. Which structure is responsible for transmitting signals from one nerve cell to the next?
A. Ribosome
B. Golgi body
C. Cell membrane
D. Nucleus
The structure responsible for transmitting signals from one nerve cell to the next is cell membrane. Thus, option C is correct.
What is cell membrane?
Cell membrane has been defined as a wall that has differentiate and protect the inner structure of the cell from the outer environment. The main function of the cell membrane has to keep away the toxic material out from the cell. The cell membrane must contain channels as well as receptors that provides permission to only selective permeable membrane to enter into the cell.
The nerves has been arranged in the form of branches which starts from the spinal cord and distributed in all over the parts of body.The location where the brain and spinal cord had been located has also known as the dorsal body cavity and these two parts of the body play a vital role in the communication of all parts of the body.
Therefore, The structure responsible for transmitting signals from one nerve cell to the next is cell membrane. Thus, option C is correct.
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A patient's blood pressure has not responded consistently to her prescribed medications for hypertension. the first cause of this lack of response the nurse should explore is:
The point at which the trachea (windpipe) divides into right and left primary bronchi may be determined by locating the sternal angle.
Why are cns neurons that are lost to injury or disease seldom replaced?
Which describes your body's general response to all kinds of injury, from cuts and scrapes to internal damage?
Answer: Inflammation
Inflammation is the response of the body to any kind of cut, injury, infection or scrapes to the internal damage of the body that may be caused by bacteria, viruses, or physical damage to the body.
Inflammation indicates that the body immune system is fighting with the infection and the healing process has been started. It is the second line of a defense system.
Which of the following blood vessels uses elasticity to push blood further along the bloodstream?
A) Arteries
B) Capillaries
C) Varicose veins
D) Atrioventricular node
in a lysogenic infection the viral DNA that is embedded in a host cells DNA is called
Where would a pictograph not appear in your experiment outline
A. Procedure
B. Observations
C. Conclusions
D. It would appear in all of the above
The clavicle can break when catching a fall with outstretched hands. describe how the impact
Final answer:
The clavicle or collarbone is vulnerable to fractures during a fall onto outstretched arms, as the force travels up the limbs to the clavicle, potentially causing it to break. This bone is crucial as it connects the sternum and scapula, but luckily, important blood vessels and nerves are not usually harmed when it fractures.
Explanation:
The clavicle, commonly known as the collarbone, is prone to fractures especially when a person falls and lands on their outstretched hands. Such a fall transmits the force of the impact through the arms to the clavicles, which may break if subjected to excessive force. The clavicle serves as an anchor, connecting the sternum and the scapula (shoulder blade), and positioning the arms on the body.
When a clavicle fracture occurs, the bone typically breaks in the middle or lateral parts due to the sternoclavicular joint being robust and not easily dislocated. Muscles surrounding the shoulder can pull the broken fragments of the clavicle in different directions, causing them to override each other. Despite being positioned over crucial blood vessels and nerves, a fracture in the clavicle rarely affects these underlying structures because the bone typically displaces anteriorly when broken.
A therapist who sat with a patient with bulimia while the patient ate appropriate quantities of "forbidden" foods, and then stayed until the patient no longer had the urge to purge, would be practicing:
What is the importance of the cell cycle for organisms? check all that apply. growth of organisms creation of new organisms repair of damaged cells reproduction of new cells?
Answer:
a. growth of organisms
c. repair of damaged cells
d. reproduction of new cells
Explanation:
edg 2022
The cell cycle is critical for the growth, creation, repair, and reproduction of cells in organisms, ensuring genetic continuity and regulated development. The cycle includes specific phases for DNA replication and cell division, crucial for organism development and maintenance.
Explanation:The importance of the cell cycle for organisms is multifaceted and includes several critical biological processes such as the growth of organisms, the creation of new organisms, the repair of damaged cells, and the reproduction of new cells. This complex series of events ensures the continuity of life from one generation to the next. During the cell cycle, genomic DNA is replicated, allowing each new cell to have a complete set of genetic instructions. This cycle is composed of phases which include growth (G1), DNA synthesis (S phase), further growth and preparation for division (G2), and the actual division process (mitosis or meiosis).
All multicellular organisms rely on cell division for growth and, in many cases, the maintenance and repair of cells and tissues. This same fundamental process is also used by single-celled organisms as their method of reproduction. The mechanisms involved are highly regulated to prevent errors that can have severe consequences, such as cancer.
an elements atomic number is 62. how many protons would an atom of this element have
The nurse is caring for a client who comes to the clinic with tinea corporis, for which the prescriber orders clotrimazole. what education about this medication should the nurse provide?
Which scientist warned about the misuse of synthetic pesticides?
Explain how the reduction in dopaminergic signaling that could precede the development of motor symptoms in pd could explain the "parkinsonian personality
People with Parkinson’s disease often times develop certain personality characteristics which can be linked to the reduction of dopamine transmitters in their nervous system. This causes problems in motor movements. As a result, this group of people commonly have traits such as being passive, rigid, orderly, persistent and novelty-seeking.
Personalities who are suffering from Parkinson’s disease usually exhibit specific character traits which can be associated with the loss of dopamine transmitters in their neurotic system. Such a loss creates problems in movements of the motor. In short such people generally have features like remaining submissive, firm, arranged, determined and originality-seeking.
A(n) _______ is a muscle whose contraction is chiefly responsible for producing a particular movement.
Final answer:
The muscle primarily responsible for a particular movement is known as the prime mover or agonist. The biceps brachii is an example of a prime mover in the action of lifting a cup, with the brachialis as a synergist.
Explanation:
A muscle whose contraction is chiefly responsible for producing a particular movement is called a prime mover or agonist. Skeletal muscle is a voluntary, striated muscle type that is attached to the bones of the skeleton and facilitates body movements. Muscle tissue is capable of contracting and generating tension in response to stimulation, and its action is achieved by the coordinated effort of several muscles. While the prime mover is the principal muscle causing a specific movement, others, called synergists, may assist in the motion. Additionally, a muscle that acts with the opposite effect of the prime mover is known as an antagonist, whereas a synergist that stabilizes the origin site is termed a fixator. To illustrate, when lifting a cup, the biceps brachii acts as the prime mover, while the brachialis acts as a synergist aiding in this movement.
A eukaryotic gene was inserted into the dna of a bacterium. the bacterium then transcribed this gene into mrna and then translated the mrna into protein. the protein produced was useless and contained many more amino acids than the protein made by the eukaryotic cell. why?
The muscle that inserts on both the iliotibial tract and the gluteal tuberosity is the __________.
Describe how viruses, eukaryotic cells, and prokaryotic cells are related in terms of size.
Viruses are the smallest structures and cannot be seen through a light microscope. Prokaryotic cells are larger, averaging 1 - 5 micrometers, and do not have a nucleus. Eukaryotic cells are the largest, averaging 10 - 100 micrometers, and have a nucleus and other organelles enclosed within membranes.
Explanation:In cellular biology, viruses, eukaryotic cells, and prokaryotic cells are all structures that can contain genetic material, but they differ significantly in terms of size. Viruses are the smallest of the three, typically ranging from about 20 to 300 nanometers in diameter, and are so small that they can't be seen through a light microscope.
Prokaryotic cells, such as bacteria, are larger, generally ranging from 1 - 5 micrometers. They lack a nucleus, and their genetic material is not enclosed within a membrane.
Eukaryotic cells, like those found in humans and plants, are the largest, with a typical diameter ranging from 10 - 100 micrometers. They contain a nucleus and various other organelles all enclosed within membranes.
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For example, transgenic ____________ can be used to make pharmaceutical products such as insulin for the treatment of diabetes and vaccines for viruses.
Final answer:
Transgenic bacteria are used to produce human insulin for diabetes treatment, created through recombinant DNA technology which allows the production of human proteins in bacterial cells, reducing cost and allergy risk. This biotechnology also extends to creating transgenic plants with enhanced agricultural characteristics.
Explanation:
For example, transgenic bacteria can be used to make pharmaceutical products such as insulin for the treatment of diabetes and vaccines for viruses. One well-known application of this technology is the production of human insulin by E. coli. Originally, insulin used to treat diabetes was derived from animals, which caused allergic reactions in some patients. The introduction of the human insulin gene into bacteria created a system where they could produce human insulin en masse, which is both more cost-effective and reduces allergic reactions compared to its animal-derived counterpart. Recombinant DNA technology has not only revolutionized the production of insulin but also other medicines such as human growth hormone, clotting factors, and fertility drugs. Furthermore, this technology is not limited to medical products; it has also been applied in agriculture to create transgenic plants with improved traits, such as pest resistance or higher yield.
Dental specialist who prevents or treats disorders of the tissues surrounding the teeth
The amount of energy needed for a reaction to take place is the activation energy enzymes can lower the activation energy of a chemical reaction which of the following describes a way that this could happen
Answer: I just took the test and the answer is, Molecules can be brought together so they will bond more easily. By the way one of the answers that they have down there is wrong the one that says lipids pull together at ends or something is not correct. But have a nice day! :)
what are the parts of a hurricane
Why do trees require so much more moisture than grass?
Nutrition functional foods can be placed into two categories: _____ and ______.
Nutrition functional foods can be placed into two categories: conventional foods and modified foods.
Explanation:Nutrition functional foods can be placed into two categories: conventional foods and modified foods.