Answer:
Metabolism
Explanation:
Cell metabolism describes all the biochemical reactions that occur in the cell. This includes the generation of chemical energy from the substances in food.
This is what is used to provide energy for all the cell's processes. It is a requirement for all living things. Cellular metabolism is complex and is powered by enzymes.
voluntary skeletal muscles are moved by what part of the nervous system?
Voluntary skeletal muscles are moved by the somatic nervous system.
The somatic nervous system is a component of the peripheral nervous system which is associated with the voluntary control of the body movements via the use of the skeletal muscles.
Somatic nervous system consists of a sensory nerves carrying afferent nerve fibers, which relay sensation from the body to the central nervous system (CNS), and the motor nerves will carrying efferent nerve fibers, which relay motor commands from the CNS to stimulate the muscle contraction.
It consists of the two parts: Spinal nerves and Cranial nerves.
Spinal nerves are the mixed nerves that carry sensory information into and motor commands out of the spinal cord.
Cranial nerves are the nerve fibers which carry information into and out of the brain stem. They include smell, mouth, taste, eye muscles, ear, neck, shoulders, and tongue.
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Which carbon-based compounds are essential to living things?
O proteins, petroleum, carbohydrates, lipids
O carbohydrates, lipids, proteins, nucleic acids
O water, lipids, proteins, nucleic acids
O carbohydrates, mineral salts, proteins, nucleic acids
Answer:
the answer is the second option.
carbohydrates, lipids, proteins and nucleic acids are biological molecules essential to sustain life in living organisms.
Answer:
i think it's the second one
Explanation:
i think, not really sure
Mutations within an organism can occur in body cells or reproductive cells. Which type of mutation is seen in a sperm
cell but not in a skin cell?
somatic mutation
missense mutation
nonsense mutation
germline mutation
environmental pressure definition
Environmental pressure, also known as selection pressure or ecological pressure, refers to the influence exerted by the environment on living organisms, driving the process of natural selection.
It encompasses various factors, such as climate, competition for resources, predation, and other ecological interactions.
Environmental pressure plays a pivotal role in shaping the characteristics and traits of organisms within a population.
Individuals possessing advantageous traits that align with the environmental conditions are more likely to survive, reproduce, and pass on these beneficial traits to the next generation.
Over time, this process leads to the adaptation and evolution of species, enhancing their ability to thrive and succeed in their specific ecological niches.
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Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as:
Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as homeostatic mechanisms.
Homeostasis is the body's ability to maintain a stable internal environment despite external changes.
In the context of the brain, homeostatic mechanisms involve various processes that regulate physiological functions and maintain optimal levels of essential substances.
These mechanisms can include feedback loops that detect imbalances and initiate corrective actions.
For example, if there is a deficiency in a particular nutrient or hormone, the brain may activate mechanisms to increase its production, decrease its consumption, or enhance its absorption from the environment.
Homeostatic mechanisms play a crucial role in ensuring the body's overall stability and functioning, helping to maintain proper levels of various substances and promoting overall well-being.
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about one-third of the world’s population does not have:
Answer:
Safe Drinking water
Explanation:
Some steps involved in DNA replication and protein synthesis are summarized in the table below.
Step A
DNA is copied, and each new cell gets a full copy.
Step B Information is copied from DNA into mRNA which leaves the nucleus.
Step C
Proteins are assembled at the ribosomes.
Step D
Proteins fold and begin functioning.
In which step would a mutation lead directly to the formation of an altered gene?
A
Step A
B
Step B
C
Step C
D
Step D
Answer: In the nucleus, DNA is complexed with proteins to form a fine filamentous material ... so it can give complete and identical copies of all of its genes to each daughter cell. ... The process of reading an mRNA molecule and synthesizing the protein ... DNA guides the folding of a new protein after it has been assembled by RNA.
Explanation:Transcription Process during which a DNA sequence of a gene is copied to make an RNA molecule
Translation Process during which an mRNA molecule is used to assemble amino acids into polypeptide chains
Mutation A change in a genetic sequence
e3 ubiquitin ligase rnf126 promotes cancer cell proliferation by targeting the tumor suppressor p21 for ubiquitin-mediated degradation
The statement you provided suggests that the E3 ubiquitin ligase RNF126 plays a role in promoting cancer cell proliferation by targeting the tumor suppressor protein p21 for ubiquitin-mediated degradation.
Here's a breakdown of the information:
1. E3 Ubiquitin Ligase RNF126: E3 ubiquitin ligases are enzymes involved in the process of ubiquitination, which marks proteins for degradation by the proteasome. RNF126 is a specific E3 ubiquitin ligase.
2. Cancer Cell Proliferation: Cancer cells often exhibit uncontrolled and abnormal cell growth, leading to tumor formation. Various factors and mechanisms contribute to the promotion of cancer cell proliferation.
3. Tumor Suppressor p21: p21, also known as cyclin-dependent kinase inhibitor 1A (CDKN1A), is a well-known tumor suppressor protein. It plays a critical role in regulating cell cycle progression by inhibiting cyclin-dependent kinases (CDKs) and preventing uncontrolled cell proliferation.
4. Ubiquitin-Mediated Degradation: Ubiquitin-mediated degradation involves the attachment of ubiquitin molecules to target proteins, leading to their recognition and subsequent degradation by the proteasome. This process plays a crucial role in regulating protein levels and controlling cellular processes.
The statement suggests that RNF126 promotes cancer cell proliferation by targeting p21 for ubiquitin-mediated degradation. By facilitating the degradation of p21, RNF126 may reduce the inhibitory effects of p21 on cell cycle progression, potentially leading to increased cell proliferation and tumor growth.
It's important to note that the information provided is a general summary based on the statement you provided. Specific details about the mechanism and context of this interaction would require a more in-depth analysis of the scientific study or publication where this information is sourced from.
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Describe the structure of an antibody. What are the targets of antibodies called?
An antibody is a Y-shaped protein molecule consisting of four polypeptide chains - two heavy chains and two light chains, linked together by disulfide bonds to form a flexible structure. The targets of antibodies are called antigens.
The structure of an antibody consists of four polypeptide chains, specifically two heavy chains and two light chains, which are connected by disulfide bonds. These chains form a Y-shaped molecule with two identical antigen-binding sites at the tips of the Y's arms. The constant region forms the stem of the Y and is involved in interacting with immune cells. The constant regions determine the antibody's class and function such as activating complement proteins and binding to immune cells. The variable regions of the antibody, located at the tips of the Y, are responsible for recognizing and binding to specific antigens. The targets of antibodies are called antigens. Antigens are molecules, typically proteins or polysaccharides, that are recognized as foreign by the immune system and trigger an immune response. When an antigen enters the body, it triggers the production of antibodies that are specific to that antigen. Antibodies bind to specific antigens, helping to neutralize or eliminate them from the body.Learn more about the antibody: https://brainly.com/question/15382995
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research the typical climate conditions in the taiga. explain why the structure of pinecones helps ensure successful reproduction in the taiga.
The structure of pinecones in the taiga biome demonstrates adaptations to the harsh climate conditions and ensures the successful reproduction and survival of pine trees in this challenging environment.
The taiga, also known as the boreal forest, is a biome characterized by long, cold winters and short, cool summers. It is primarily found in high-latitude regions of the Northern Hemisphere, such as Canada, Alaska, Scandinavia, and Siberia. The climate in the taiga is classified as subarctic, with distinct seasonal variations and low average temperatures.
Temperature: Winters in the taiga are long and bitterly cold, with average temperatures ranging from -20°C to -30°C (-4°F to -22°F). Summers are short and mild, with average temperatures ranging from 10°C to 20°C (50°F to 68°F).
Precipitation: The taiga receives moderate to high precipitation, primarily in the form of snow during winter and rain in the summer. Annual precipitation ranges from 400 to 900 millimeters (16 to 35 inches), with the majority falling during the summer months.
Snow cover: Snow covers the taiga for a significant portion of the year, typically from October to May. This snow cover provides insulation for the underlying vegetation, protecting it from extreme cold temperatures.
Soil: The taiga has acidic, nutrient-poor soils, often referred to as podzols. These soils are low in organic matter and minerals due to slow decomposition rates in the cold climate and leaching caused by precipitation.
Now, let's explore how the structure of pinecones helps ensure successful reproduction in the taiga:
Protection: Pinecones have a protective structure that shields the seeds within. The scales of pinecones are thick and woody, providing insulation and defense against the harsh winter conditions, including freezing temperatures, snow, and ice. This protection ensures the viability of the seeds during winter dormancy.
Adaptation to fire: The taiga is prone to forest fires, which play a vital role in the regeneration of the ecosystem. Pinecones have evolved to take advantage of these fires. Some pine species have serotinous cones that remain closed until they are exposed to the high temperatures of a fire.
Dispersal mechanisms: Pinecones employ various mechanisms for seed dispersal. One common mechanism is through the use of winged seeds called samaras or pine seeds that are equipped with a papery wing-like structure.
Timing of seed release: Pinecones have evolved to release their seeds under favorable conditions. In the taiga, this often occurs during the warmer and wetter summer months.
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pleaseee help me fasttt
Answer:
1. A 2.B 3.B 4.C 6.A 7.B 8.C 9.D
Explanation:
Sexual reproduction allows for more genetic diversity than asexual reproduction.
options:
True
False
Answer:
True.
Explanation:
The overall chemical equation that describes photosynthesis is shown below.
6CO2 + 6H20 → C6H12O6 + 602
By analyzing this equation, which property of photosynthesis can be identified?
o
A. the chemical changes that occur during the light-independent reactions
B. the chemical changes that occur during the light-dependent reactions
d
c. the source of carbon atoms in the carbohydrate product
D. the identities and roles of electron carriers
How do wales differ from fish
Answer:
Whales are mammals that need air from the sea's surface to survive. Whales are capable of giving birth to live young. Fish have gills and use them to draw oxygen from the water. The majority of fish lay eggs. Whales and other marine animals with horizontal tail fins, such as dolphins, have vertical tail fins, while fish have vertical tail fins.
hope this helped!
This is a cloud, a stratus cloud, that forms close to the surface of the earth. We call this
A) dew.
B) fog.
C) hail.
D) humidity.
Answer:
Fog
Step-By-Step Explanation:
gases do not have a definite shape because?
Answer:
Gases do not have a definite shape or volume because the molecules in gases are very loosely packed, they have large intermolecular spaces and hence they move around. The force of attraction between molecules is also very less, as a result gases acquire any shape or any volume.
Therefore, gases take the shape of the container and occupy the complete volume of that particular container.
35. Which of the following is not an example of a
compound?
a. Hydrogen peroxide
b. Salt Water
c. Baking Soda
d. Ammonia
why does water affect temperature in some regions
Answer:
water goes away heated if below rated tempeture
Explanation:
ANSWER THESE PLEASE!!
1)Each myofibril is made up of arrays of parallel filaments. The thickbands are called _____ and the thin bands are called _____.
2) Which myofibril (actin or myosin) produces the Dark A band?
3) Which myofibril (actin or myosin) produces the light I band?
4) what does the shortening of a myofibril produce?
Answer:
2.myosin
3.Actin
4.produces movement
Explanation:
USE QUIZLET IT HELPS SERIOUSLY!!!!
ANSWER ASAP!!!!! WILL MARK 1ST ANSWER BRAINLIEST!!!!! <3
~ explain the changes in kinetic energy and potential energy that occur when an apple falls off the table and hits the floor
Answer:
When an apple falls from the tree to the ground, its energy of position (stored as gravitational potential energy) is converted to kinetic energy, the energy of motion, as it falls. When the apple hits the ground, kinetic energy is transformed into heat energy.
Explanation:
Can someone answer this small question in a few lines. 10 points.
A disruption of our 24-hour biological clock as a result of either overexposure or underexposure to light is referred to as?
A disruption of our 24-hour biological clock as a result of either overexposure or underexposure to light is referred to as desynchronization.
What is a biological clock?Circadian rhythm is another term for biological clocks.Circadian rhythms are changes in an organism's physical, mental, and behavioral changes that occur on a 24-hour cycle.These natural processes are primarily affected by light and dark and affect nearly all living things, including animals, plants, and microbes.Endogenous biological clocks regulate physiological activity and behavior patterns on multiple time scales. Circadian rhythms are cycles of change that occur within 24 hours and include the sleep/wake cycle, body temperature change, and hormone release such as melatonin and cortisol. Melatonin, a hormone that helps regulate circadian rhythms, is secreted by the pineal gland. Melatonin production is proportional to the amount of light a person is exposed to.To learn more about circadian rhythm:
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Where does the light that most plants use for photosynthesis come from?.
Answer: the Sun
Explanation: The whole process of photosynthesis is a transfer of energy from the Sunto a plant. In each sugar molecule created, there is a little bit of the energy from the Sun, which the plant can either use or store for later.
The vessels that deliver oxygen to the tissues of the body are part of the __________.
Answer:
They are your blood vessels
Explanation:
Human anatomy
Which is NOT a type of
point mutation?
A. frameshift mutations
B. substitution mutations
C. chromosomal mutations
The correct option is A.
What is a point mutation?
A point mutation occurs in a genome when a single base pair is added, deleted, or changed. While most point mutations are benign, they can also have various functional consequences, including changes in gene expression or alterations in encoded proteins.
What are point mutation and frameshift mutation?In a frameshift mutation, deletion or insertion of one nucleotide leads to a change in the reading frame of codons in a gene from that point onwards, whereas in point mutation, there is a change in only one base pair of DNA due to substitution.
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Which process turns glucose into energy?
Breathing
Cell division
Cellular respiration
Photosynthesis
Answer:
cellular respiration
Explanation:
please help me answer this question please!!?
Answer: B. Oil Drilling
Explanation:
I am pretty sure because I remember something like Oil Drilling in the forest biome.
Plz help me ASAP TwT
Answer:
Response
Explanation:
It is response because your pupils are responding to the light flashing in your eyes and therefore they get smaller.
Hope this helps :)
Answer:
Response
Explanation:
We can use process of elimination. Reproduction does not fit in this context--nothing is reproducing. Nothing is growing, either. Development usually refers to when an organism develops, which doesn't fit this context either. Response is the only one that fits--your pupils are responding to the sudden light.
The amount of atp stored in a muscle cell can keep a muscle active for about ________.
An organism has 50 chromosomes in its body cells, how many chromosomes are in it’s sex cells?
There would be 25 chromosomes in the organism's sex cells, also called gametes.
This is because, during sexual reproduction, two gametes unite to form a zygote. Their chromosomes in this case combine to make 50. (Humans have 46 chromosomes in their body cells and 23 in their gametes.)
In short, the number of chromosomes in the gamete is half the number of chromosomes in the body cells.