I would say A, B D are the correct answers
AB and D are the correct answers not C
what is the ultimate original source of energy for all living things? A. Glucose B. The Sun C. ATP D. Carbon Dioxide
ATP is the correct answer
Which organelle converts energy to a usable form
The Eurokaya cells are the organelles to convert energy to a usable form
The mitochondrion converts the chemical energy stored in food into compounds that are more convenient for the cell to use. In both plant cells and animal cells.
What can you infer about the growth of the seed type pictured in the graphs below?
The right option is (D) Light has no effect on growth
Explanation:The graph shows the relation between growth and time period of the seed in the presence of sunlight. As we can see that there is no significant change on the growth in the presence of sunlight. So we can say that light has no effect on the growth of this seed
The Venn diagram compares aerobic respiration and anaerobic respiration. Which statement should be categorized only in the aerobic section of the venn diagram?
A) occurs in the cytoplasm
B) produces water
C) we cryers no oxygen
D) is performed by yeast
Answer:
The correct answer would be B) produces water.
Aerobic respiration is a type of respiration in which oxygen is used as the final acceptor of the electrons in an electron transport chain.
It usually takes place in mitochondria of a cell except for glycolysis part which takes place in the cytoplasm.
In this respiration, carbon in glucose is oxidized to produce carbon dioxide whereas oxygen is reduced to form water.
H₂ + 1/2 O₂ →H₂O
In contrast, anaerobic respiration usually occurs in the cytoplasm and results in the formation of lactic acid or ethanol and ATP.
Answer:
Produces water should be in the only aerobic section of the diagram. Aerobic respiration end products are carbon dioxide and water. Anaerobic respiration end products are lactic acid in animals and carbon dioxide and ethanol in yeast and plants. (: AKA the answer is B
Explanation:
Which describes the reproduction of plants?
Which of these choices is product of mitosis?
a.egg
b.sperm
c.sex cell
d.skin call
it should be the egg and the sperm.
The skin cells go through mitosis to replace dead ones. The correct answer is d. skin cells.
What is cell division?Mitosis and meiosis are the two distinct processes of cell division. When people talk about "cell division," they typically mean mitosis, which is the process of creating new cells for the body. The cell division process known as meiosis is what produces egg and sperm cells. A vital process for life is mitosis.
Cell division always involves a complex set of stages that are carefully choreographed and highly controlled. While mitosis and meiosis refer to two distinct processes of nuclear division, cytokinesis describes the division of a cell's cytoplasm.
The original nucleus divides into two identical nuclei during mitosis. Contrarily, meiosis produces four nuclei, each of which has half as many chromosomes as the parent cell. Only the gametes, or cells that develop into sex, the egg, and the sperm, go through meiosis in animals.
Therefore the correct answer is d). skin cells.
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How is the speed of light affected as light passes at an angle from air to water
(6, -3) is an example of a _____.
A. 1-dimensional reference point
B. 2-dimensional reference point
C. 1-dimensional coordinate point
D. 2-dimensional coordinate point
I think is D 2 dimensional coordinate point I’m not sure though
Answer:
Option D
(6, -3) is an example of a 2-dimensional coordinate point
Explanation:
In a two dimensional plane, every point is referenced with two coordinates, that is, an x-coordinate and a y-coordinate as follows: (x-coordinate, y-coordinate); in this case, the x-coordinate is 6 and the y-coordinate is -3.
The image of the butterfly above best represents.. Radial symmetry symmetry niche asymmetry
Where is the image...?
Which cell specimen is a prokaryote
They are bacteria/single-celled organisms.
Answer:
Np
Explanation:
They have a plasma membrane and cytoplasm
In terms of probability, what does each box in a Punnett square represent?
1)all possible outcomes
2)one actual outcome
3)all actual outcomes
4)one possible outcome
Photographs are rarely taken at the scene where bones are found. True False
The answer is False
True or false,
photographs are rarely taken at the scene where bones are found
the answer is False
What are the applications of human nervous cells?
The nervous system is responsible for sending, receiving and interpreting signals from all over the body and coordinates its action. It processes and intergrates information on a variety of levels, and directs the body to respond appropriately. The nervous cell system consists of neurons, endothelial cells, pericytes, smooth muscle cells, fibroblasts, Schwann cells, epithelial cells, meningeal cells and microglia. When the nervous cells grow abnormally, the development of disorders starts such as cerebrovascular disease, Alzheimer’s disease, Parkinson’s disease, multiple sclerosis, mental illness, and Huntington’s disease.
https://www.creative-bioarray.com/Products/Nervous-Cells-list-148.htm
The human body is made up of trillions of cells. Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. The human brain has approximately 86 billion neurons. To learn how neurons carry messages, read about the action potential.
Neurons come in many different shapes and sizes. Some of the smallest neurons have cell bodies that are only 4 microns wide. Some of the biggest neurons have cell bodies that are 100 microns wide. (Remember that 1 micron is equal to one thousandth of a millimeter!).
Neurons are similar to other cells in the body because:
Neurons are surrounded by a cell membrane.
Neurons have a nucleus that contains genes.
Neurons contain cytoplasm, mitochondria and other organelles.
Neurons carry out basic cellular processes such as protein synthesis and energy production.
However, neurons differ from other cells in the body because:
Neurons have specialize cell parts called dendrites and axons. Dendrites bring electrical signals to the cell body and axons take information away from the cell body.
Neurons communicate with each other through an electrochemical process.
Neurons contain some specialized structures (for example, synapses) and chemicals (for example, neurotransmitters).
The Neuron
neuron
One way to classify neurons is by the number of extensions that extend from the neuron's cell body (soma).
bipolar neuron
Bipolar neurons have two processes extending from the cell body (examples: retinal cells, olfactory epithelium cells).
Pseudounipolar cells (example: dorsal root ganglion cells). Actually, these cells have 2 axons rather than an axon and dendrite. One axon extends centrally toward the spinal cord, the other axon extends toward the skin or muscle.
Multipolar neurons have many processes that extend from the cell body. However, each neuron has only one axon (examples: spinal motor neurons, pyramidal neurons, Purkinje cells).
Neurons can also be classified by the direction that they send information.
Sensory (or afferent) neurons: send information from sensory receptors (e.g., in skin, eyes, nose, tongue, ears) TOWARD the central nervous system.
Motor (or efferent) neurons: send information AWAY from the central nervous system to muscles or glands.
Interneurons: send information between sensory neurons and motor neurons. Most interneurons are located in the central nervous system.
Check out the Gallery of Neurons to see some pictures of real neurons or "Sidewalk Cells" to see photographs of neurons on the street.
Hear It
"Neuron" | "Axon" | "Dendrite" |
"Nissl" | "Mitochondria" | "Endoplasmic reticulum"
There are several differences between axons and dendrites:
HELP! Help me plz!
Look at pic its just one question and I'm too dumb to answer!
what was the strand form #5
Identify the advantages that GMOs offer over crop varieties produced through traditional methods of breeding.
Select all that apply.
1.There are fewer government regulations and safety tests required.
2.It is easier to move genes between species.
3.There is less carry-over of undesirable traits.
4.GMOs are produced through a comparatively faster process.
Using data, provide evidence that evolution is an ongoing process.
The major evidence that the evolution is still ongoing is mutations that occur. Those changes at gene level happen by chance during the process of copying DNA and change through the populations over time. Individuals who reproduced can pass that mutation to their offspring. When carriers with a specific mutation are better able to survive and reproduce, natural selection will favor them. That is the way of new variant to be passed down and spread through the population.
what are the chances that a cross between a black chicken and white chicken will result in blue offspring?
a) 0%
b) 25%
c) 50%
d) 100%
the chances that a cross between a black chicken and white chicken will result in blue offspring is 100%, because Back and white are both incomplete dominant traits, 100% of the offspring will be heterozygous blue.
What is trait ?Traits are the attributes of an organism which are influenced by the environment and expressed by genes, the Physical features of an organism, such as hair color, leaf form, size, behavioral characteristics,
They have specific traits which allow them to be successful in the ecosystem, these are physical characteristics which include fin length, body shape, color patterns, eyesight, and muscle definition.
Species with substantial variation in traits For example, white-tailed deer in Pennsylvania have seed coat color with limited variation, all the organism have characteristics are genetic traits or behavioral traits.
Genetic Traits can be defined as the genes that one gets from both parents influence, the Individual and independent traits are defined by genes, which are encoded by unique portions of our DNA.
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When crossing a black chicken with a white chicken, 50% of the offspring are expected to be blue due to incomplete dominance. This is known as Andalusian Blue pattern in genetics.
When a black chicken is crossed with a white chicken, the resulting offspring may exhibit an intermediate phenotype called blue or Andalusian Blue. This occurs due to incomplete dominance, where neither black nor white alleles completely dominate. In this case, the expected outcome is:
50% of the offspring will be blue.25% will be black.25% will be white.Therefore, the correct answer to the question about the chances of getting blue offspring is c) 50%.
This exemplifies how genetics in chickens can lead to mixed characteristics due to blending inheritance.
The fish pond are dying because of algal bloom. Algal bloom is caused by the presence of excess phosphorus or sulfur in the pond. An investigation into the matter indicates hat chemical fertilizers made in a factory nearby are responsible for the presence of these chemicals in the water. Under what conditions might this data be considered biased?
Describe how the red crab spider is adapted for its unique method of hunting.
They can disguise themselves throughout many nations. More commonly in Australia, Europe, and the North and South America! Hopes this helps!
What occurs during mitosis? Choose the correct answer.
DNA and chromosome duplication
growth and metabolism of the cell
cell division to create two daughter cells
cell division to create two daughter cells
The main difference between a scatter plot and a line graph is _____.
A. a line graph has a best-fit line
B. a scatter plot has points plotted
C. a line graph has two lines for the axes
D. a scatter plot has several different sets of data
I think the answer is A
Answer:
D
Explanation:
A scatter plot, unlike a line graph which is connected by joining various dots to form the line, and hence to be able to gather the information by studying the pattern of line, is different in this sense.
One needs to study two different sets of Data in a scatter graph. The word scatter itself inclines us to the idea of knowing that all the information in this plot will not be found in one place like in the line graph. One has to compare information derived from data collection to another data collection in a scatter plot.
Note: Both have the Y and The X axis.
What is the best definition of directional selection
Directional selection is a mode of natural selection an extreme phenotype is favored over other phenotypes this causes the allele to shift over time in the direction of the favored phenotype
Directional selection is a mode of natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of the favored phenotype.
How do we explain?Phenotype: The observable physical characteristics of an organism.
Genotype: The genetic makeup of an organism.
Allele: A variant of a gene.
Allele frequency: The proportion of a population that has a particular allele.
In directional selection, there is a selective pressure for one extreme phenotype over the other phenotypes. This could be due to a change in the environment, such as a change in climate, or it could be due to a new mutation that gives the organism an advantage.
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What does neurons do?
Answer:
is an electrically excitable cell that takes up, processes and transmits information through electrical and chemical signals.
Explanation:
How is mitochondrial DNA (mtDNA) typing used in forensic science?
Answer:
Mitochondrial DNA typing is a method used by forensic scientists which match the DNA of unknown sample to the sample collected from the crime scene.
This typing method posses several advantages over other nuclear DNA typing methods in forensic science as:
A large copy number of DNA (2-10 times) per mitochondria provide enough DNA sample. Depending on the functions, a cell can have many mitochondria (1-100) which can provide enough sample for typing. No recombination takes place in mitochondrial DNA so DNA sample remains unchanged over many generations. So, the sample can be matched easily with the relatives of the unknown sample. Mitochondria show only maternal inheritance that they take DNA from mitochondria of the mother. DNA is amplified using Polymerase chain reaction which undergoes direct sequencing.Thus, mitochondrial DNA typing has several advantages in forensic science.
Mitochondrial DNA (mtDNA) typing is a valuable tool used in forensic science for identifying individuals and establishing maternal relationships.
what is nuclear DNA?Unlike nuclear DNA, which is inherited from both parents and is unique to each individual (except for identical twins), mtDNA is inherited solely from the mother and is passed down unchanged from generation to generation. This unique inheritance pattern makes mtDNA analysis particularly useful in certain forensic scenarios.
In cases where human remains are found and conventional methods of identification, such as fingerprinting or dental records, are not feasible, mtDNA analysis can be used to identify the deceased.
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Ammonia (NH3)can be products by bacteria in the soil by two processes:
What. And. What
Answer: Ammonification and nitrogen fixation.
Explanation:
Ammonification is the process where by organic nitrogen is converted ammonia in the soil by bacteria. These occur when bacteria breakdown the remains of dead plants and animals to release organic nitrogen and it is converted to ammonia.
Nitrogen fixation it is the process where atmospheric nitrogen is converted to ammonia or nitrate in the soil, in a way it is absorbed by plants. It is fixed by bacteria in root nodules of leguminous plants or by lightening.
A large hurricane moves through a small island in the Caribbean. What are the consequences to this island’s plant and animal diversity?
The island will lose all abiotic factors needed by plant and animal populations.
The island’s ecosystem will recover due to primary succession.
The island will lose all of the plant and animal populations of the island.
The island will suffer a loss of native plant and animal species.
Answer:
The most appropriate option would be: The island will suffer a loss of native plant and animal species
Explanation:
A hurricane is a calamity that manifests itself in the form of great rain fall, strong winds and thunderstorm.
Hurricanes just like all other natural calamities cause a lot of destruction to the organisms living in an area, their habitats and become a source of introduction of certain invasive species.
If a Hurricance hits a small island in the Caribbean, there are a lot of chances that Island will lose a large amount of animals and plant species. The fact is that when a hurricane hits and goes, many not all specie re-emerge eco-system establishes due to process of succession. However, there are some native plant and animal specie that are native to a specific place like that Island, so there are more chances that after that large hurricane island will suffer a loss of native plant and animal species.
The climate of the Island will not be in a position to sustain the survival of all living organisms, therefore, some may starve and perish for always although some may recover too. Therefore, Option D seems best.
Hope it helps!
HELP IM STUCK!!
the pedigree below shows the inheritance of a non sex-linked trait. shaded individuals show the dominant trait. what is the probable genotype of each individual #4 and individual #6
The answer is C. The genotype of individual #4 is "Aa" and individual #6 is "aa"
Can someone help me with these please?
25) D hypertonic
23) active transport
Those are the ones I know (sorry I couldn't help with the other ones... I'm studying for my exam) ^-^
You are observing different tissue samples and classifying the cells into their respective stage in the cell cycle. What can you conclude about Sample B based on these observations? A) Sample B Is is most likely cancerous because most of the cells are in interphase. B) Sample B is most likely cancer tissue because most cells are in some stage of mitosis. C) Sample B is most likely a normal tissue sample because most of the cells are in interphase. D) Sample B is most likely a normal tissue sample because most cells are in some stage of mitosis.
We have been given that different tissue samples are in their respective stage of cell cycle.
Ans is option B because cancerous cells tend to divide indefinitely regardless of the presence or absence of growth factors. In cancerous cells G0 check points fail and the cells are always in some stage of mitosis i.e. cell is supposed to be in any of the following stages of mitosis :
1) Prophase
2) Metaphase
3) Anaphase
4) Telophase
D) Samples A & C indicate cancer due to the large proportion of cells in some stage of mitosis compared to the cells in interphase.
Sample: Number of Cells in Interphase Number of Cells in Prophase Number of Cells in Metaphase Number of Cells in Anaphase Number of Cells in Telophase
Sample A 6 15 4 7 8
Sample B 25 4 2 3 1
Sample C 4 9 5 3 6
In a simple synapse, neurotransmitter chemicals are received by___
Mostly by Acetylcholine receptors if it is a simple neuron.
If Acetylcholine isn´t your Neurotransmitter just put the name of it before the word "receptor"
Neurotransmitter chemicals released by the presynaptic cell in a simple synapse are received by the receptors on the postsynaptic cell. Once bound, they trigger an electrical impulse in the postsynaptic cell. After transmission, the neurotransmitter is either degraded or reabsorbed for future use.
Explanation:In a simple synapse, neurotransmitter chemicals are received by the receptors on the surface of the postsynaptic cell. This is a biological process typically observed in a chemical synapse, where the neurotransmitter released from the presynaptic cell diffuses across a very minor distance called the synaptic cleft. After traversing this gap, the neurotransmitter attaches to a receptor protein, causing a change in the electrochemical potential in the postsynaptic membrane and thereby launching the next electrical impulse.
In this process, the neurotransmitter fits into its receptor akin to a lock-and-key mechanism. This binding is a very specific biochemical event, and each neurotransmitter only binds to its relevant receptor. Following the signal transmission, the neurotransmitter is rapidly degraded or reabsorbed by the presynaptic cell. This allows for the quick recovery of the recipient nerve cell and readiness to respond to the subsequent synaptic signal.
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