Answers
Answer:
B. oxygen and picks up electrons
Related Questions
A codon
A. Is part of a gene
B. Is made of three bases of DNA in a row
C. Represents one amino acid in a protein
D. All of these
Answers
Answer:
D. All of these.
A codon is a sequence of three nucleotides that forms a unit of genetic code in DNA or RNA molecules. It is part of a gene, made of three bases of DNA in a row, and represents one amino acid in a protein.
Which of the following describes an independent variable?
Answers
Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure.
Answer:
relaying on your own and not depending on someone
The work of scientists usually begins with *
testing a hypothesis
careful observations
creating experiments.
drawing conclusions
Answers
Answer:
careful observation
Explanation:
The work of scientists usually begins with careful observations.
The second option is correct.
How do we explain?Scientists make observations of the natural world and ask questions about what they see. These observations can be made through experiments, by collecting data, or by simply observing the world around them.
A hypothesis is a proposed explanation for a phenomenon. It is a tentative statement that can be tested through experimentation.
Scientists then create experiments to test their hypotheses. Experiments are carefully controlled procedures that are designed to test a specific hypothesis. The results of experiments can either support or refute a hypothesis.
Therefore, the second option is correct.
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What is what is the biggest change in leg anatomy from the dawn horse to modern horse
Answers
Answer:
The modern horse, in addition to having much longer legs, has developed hooves in place of hand/foot bones.
Explanation:
Just read the text :)
a change in the base pairs is called a what?
Answers
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Substitution is a type of mutation where one base pair is replaced by a different base pair. The term also refers to the replacement of one amino acid in a protein with a different amino acid.
Hope it helps!
Brainliest pls!
Follow me! :)
Answer:
Substitution is a type of mutation where one base pair is replaced by a different base pair. The term also refers to the replacement of one amino acid in a protein with a different amino acid.
Explanation:
Which of the following are layers of the Earth based on its "composition"? 5 points
*
Mantle
Core
Crust
Lithosphere
Mesosphere
Answers
Answer:
lithosphere this is one of the layers of earth it takes 30% of the earth while hydrosphere takes 70% of the earth crust
Which immune process is most similar to a child being exposed to pathogens by eating dirt? immunization injections cilia filtration natural killer cells anti-histamine reactions
Answers
The process most similar to a child eating dirt and being exposed to pathogens is called immune priming. Immune priming is when a person is exposed to a weak antigen or pathogen, stimulating a response from their immune system that will help them better respond to a secondary, stronger exposure to the pathogen.
What is priming?Antigen-specific T helper cell precursors initially come into touch with an antigen during priming. The ensuing interaction between T helper cells and B cells, which triggers the production of antibodies, is crucial. [1] When antigen is delivered to naive lymphocytes in an immunogenic state, priming of those cells takes place (capable of inducing an immune response). The primed cells will then develop into memory cells or effector cells, respectively, that can mount a stronger and quicker response to subsequent and forthcoming immunological threats. [2]
Dendritic cell antigen presentation is necessary for priming naive T cell activation. Naive CD8 T cells that have been primed produce cytotoxic T cells that can kill pathogen-infected cells directly. According on the sort of signals they receive, CD4 cells can grow into a wide range of effector cell types.
What is the function of CD4 cells?Co-receptors of TCRs (T cell receptors), CD4 cells help TCRs communicate with antigen-presenting cells. The antigen-presenting MHS class II molecules are specifically targeted by the TCR complex and CD4 cells. These CD4 cells' extracellular D1 domain interacts with the MHC Class II 2 region to form a bond. Because of this interaction, the tyrosine kinase Lck is able to phosphorylate ITAMs (immunoreceptor tyrosine activation motifs), which are attached to the cytoplasmic tail of CD4 on the cytoplasmic domains of CD3. The T cell receptors' ability to produce messages is enhanced by this.
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Which form of water is not considered as a resource? A) groundwater B) glacial ice C) ocean water D) water vapor E) surface water
Answers
Answer:
D. water vapor
Explanation:
water vapor is a gas and could not be used as a resource
Which of the following best explains why bacteria are able to adapt to
changing environmental conditions?
A Bacteria have DNA that rarely mutates in the population.
B Bacteria reproduce rapidly, allowing mutations to increase in the
population.
C Bacteria reproduce asexually, causing little genetic variation in the
population.
D Bacteria exchange genetic material, which increases the number of
chromosomes in the population.
Answers
Answer: B
Explanation:
If you infect the buffalo population with a disease how do you predict that will affect the buffalo population ?
Answers
It will decrease the population of Buffalo.
Without proper treatment, the Buffalo will die off. Resulting in less buffalo.
The sister chromatids separate and migrate to opposite poles at Anaphase II.
True
False
Answers
Answer:
True
Explanation:
The sister chromatids separate and migrate to opposite poles at Anaphase II.
True
Answer:
True
Explanation:
Glycerophospholipids are __________. View Available Hint(s) Glycerophospholipids are __________. derivatives of triacylglycerols that contain three polar phosphate heads and three amino alcohols all nonpolar molecules that are only soluble in other nonpolar solvents found only in nerve tissue in the human body derivatives of triacylglycerols that contain a polar phosphate head and an amino alcohol at one of the positions of the glycerol group
Answers
Answer:
a. derivatives of triacylglycerols that contain a polar phosphate head and an amino alcohol at one of the positions of the glycerol group.
Explanation:
Glycerophospholipids consist of glycerophosphate which is an ester of glycerol and phosphoric acid, long-chain fatty acids, and certain alcohols. The glycerophospholipids is responsible for the formation of cellular membranes of organelles within cells of all organisms. The name of Glycerophospholipids indicates the presence of glycerol, phosphorus and lipids so that's why we can say that it is derivatives of triacylglycerol that contain phosphate and an amino alcohol at one of the positions of the glycerol group.
Which of the following occurs during artificial cross pollination? A. A different plant species is used to pollinate another plant. B. The plants reproduce sexually by self pollination. C. The scientist completely controls the transfer of pollen from one flower to the stigma of another.
Answers
Answer:
c
Explanation:
its artificial= done by humans
During artificial cross-pollination, the scientist completely controls the transfer of pollen from one flower to the stigma of another.
What do you mean by Cross-pollination?Cross-pollination may be defined as a type of pollination in which sperm-laden pollen grains are transferred from the cones or flowers of one plant to egg-bearing cones or flowers of another.
Any artificial thing requires the interference of human activity. This activity by human increase the chance of those who give better productivity in every aspect.
Therefore, during artificial cross-pollination, the scientist completely controls the transfer of pollen from one flower to the stigma of another.
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56. In the 1950s, a scientist conducted a study on the changes in a population of moths. Dead moths of two different color types were fastened to trees to study which
color of moth was most likely to be eaten by birds. On dark trees, the light moths were eaten. On light trees, the dark moths were eaten. Other scientists criticized the
investigation because birds' food choice using live moths should also have been studied. Which personal trait prompts scientists to question the validity of an
investigation?
O creativity
O determination
O imagination
O skepticism
Answers
The personal trait that prompts scientists to question the validity of an investigation is skepticism.
Skepticism is a critical and questioning mindset that scientists possess. It involves challenging assumptions, questioning methodologies, and evaluating the reliability and validity of experimental procedures and results.
In the given scenario, other scientists criticized the investigation because it failed to consider the birds' food choices using live moths, which could have provided a more comprehensive understanding of the phenomenon.
This criticism demonstrates the importance of skepticism in scientific inquiry, as scientists strive to ensure that studies are conducted with rigor, encompassing multiple perspectives, and addressing potential limitations or biases.
By being skeptical, scientists promote scientific integrity and the pursuit of accurate and reliable knowledge.
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If the [H+] = 10-5 M for an aqueous solution, the pH of the solution is? Is the solution
acidic or basic (alkaline)?
Answers
If the [H⁺] = 10⁻⁵ M for an aqueous solution , the pH of the solution is 5 . the solution is acidic in nature.
The pH formula is given by :
pH = -log [H⁺]
[H⁺] = 10⁻⁵
putting the value of [H⁺] in the formula we get :
pH = - log [10⁻⁵]
pH = 5
The range of pH scale is from 0 to 14 . pH value 7 is neutral and less than 7 is acidic in nature and greater than is basic in nature.
here, the pH value is less than 7 so, the solution is acidic in nature.
Thus, If the [H⁺] = 10⁻⁵ M for an aqueous solution , the pH of the solution is 5 . the solution is acidic in nature.
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two closely related birds live on seperate islands and do not interbreed what type of isolation is occurring
Answers
When two closely related birds live on separate islands and do not interbreed, the temporal isolation is occurring.
What do you mean by temporal isolation?Temporal isolation is a type of reproductive isolation mechanism among sexual organisms in which the differences in the timing of critical reproductive events prevent members of closely related species.
Temporal isolation happens when two or more species reproduce at different times. For example, three species of orchid live in the same rain forest. Each species has flowers that last only one day and must be pollinated on that day to produce seeds.
One prezygotic reproductive barrier is temporal isolation. Temporal isolation means 'isolated in time,' so this is a mechanism that prevents species from mating because they breed at different times.
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Describe chemical digestion of proteins in the stomach
Answers
In the stomach, proteins are broken down into smaller molecules by hydrochloric acid and an enzyme called pepsin. The hydrochloric acid creates an acidic environment in the stomach, which helps to denature the proteins and make them more accessible to the pepsin enzyme. Pepsin then breaks down the proteins into smaller peptides and amino acids, which can be absorbed into the bloodstream through the small intestine.
What is the meaning of animal level and barangay level results in research?
Answers
Answer:
The points 2, -1+i√3, and -1-i√3 are right angles in the Argond plane because any two points are equally spaced.
Explanation:
Calculating distances We find that the total equals 2√3. Thus, a triangle has three sides of equal length, which is the definition of an isosceles triangle.
Animal level: Animal level results in research typically focus on analyzing or evaluating data, outcomes, or observations at the individual animal level. This level of analysis involves studying and understanding specific characteristics, behaviors, or responses of individual animals within a particular context or research setting. For example, in a study on the effects of a new drug on mice, animal level results would involve analyzing the drug's impact on each individual mouse in the experiment.
Barangay level: Barangay level results, on the other hand, pertain to the analysis and findings at the level of a barangay. A barangay is the smallest administrative division in the Philippines, roughly equivalent to a village or neighborhood. Barangay level research focuses on understanding phenomena, trends, or outcomes within a specific barangay or comparing different barangays. This level of analysis often involves examining social, economic, demographic, or other relevant factors that affect the community or population at the barangay level. For instance, a study on healthcare access in different barangays would involve analyzing data and findings specific to each barangay to understand variations in healthcare services or accessibility.
The choice of analyzing data or presenting results at either the animal level or barangay level depends on the research objectives, scope, and context of the study. It allows researchers to examine phenomena at different scales and gain insights into specific individuals or communities as well as broader patterns or trends.
The feeling of being in a forest of trees that are some of the biggest and oldest creatures ever to live on the planet is known as a(n) __________ ecosystem service.
Answers
A biophilia ecosystem service is the sensation of being among a forest of trees, some of the largest and oldest organisms to have ever existed on Earth. Edward O. Wilson, a biologist and naturalist, invented the word "biophilia" to explain how people are inherently drawn to the natural world.
The advantages individuals experience from being in a natural setting include bettering their physical and mental health, increasing their creativity and productivity, and feeling more content.
These advantages are referred to as "biophilia ecosystem services." In this aspect, trees are especially crucial since they offer a range of ecosystem services including clean air, water filtration, and wildlife habitat.
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what is the difference between cork formation and gum formation in the plants as an immune mechanism
Answers
Answer:
Cork formation is a type of secondary growth that occurs in the stems and roots of woody plants. Gum formation, on the other hand, is a type of defense mechanism that occurs in response to injury or infection.
Explanation:
Jane is doing an experiment to find out how the size of a bowl affects the growth of the goldfish living in that bowl. She has three identical goldfish. She puts them in three bowls of different sizes. Every day, Jane looks at the goldfish in each bowl. In addition to looking, what should she do?
Answers
Answer:
maybe she should feed the gold fish
She should change the water she should change the container to see the change 'cuz there will be a change.
Answer:
C: Record her observations each day
Explanation:
I got it correct.
Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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Why are most marine photosynthesizers unicellular?
Answers
Most marine photosynthesizers are unicellular so that the small organisms can eat them.
Most marine photosynthesizers are unicellular in order to provide food to the unicellular organisms such as zooplankton. Marine photosynthesizers are microscopic, unicellular plants, bacteria, algae and other photosynthetic organisms that used sunlight and produces food for the for small creatures called zooplankton so that's why most marine photosynthesizers are unicellular.
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Using renewable energy sources increases carbon emissions and air pollution
True or False
Answers
Answer:
False
Explanation:
Actually, it does the opposite; it help in decreasing CO2 emissions and pollution in general.
- I hope this helps :)
Show a Punnett square for a cross that allows F1 to self-pollinate (Hint: a cross between the offspring).
List the results of the Punnett square.
Answers
We can use a punnett square to predict the outcome of self-fertilization for the f1 hybrids of a monohybrid cross.
In this scenario, the punnett square should be set up as a 2x2 square.
What is the purpose of punet sqaure here?The Punnett square uses the representation of crosses between different persons to indicate the possibility of having children with varied genotypes and attributes.
When we talk about monohybrid crosses, we typically mean a single diallelic gene that codes for a single trait.
These crossovers result in various gamete combinations depending on the alleles involved. Keep in mind that each gamete has an allele of one of the relevant genes.
we can predict using a Punnett square the self-fertilization for the f1 hybrids of a monohybrid cross.
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What is the definition of a scientific theory?
A.
A proposed explanation for an occurrence based on available data, observations, or evidence.
B.
A well supported explanation of why a phenomenon occurs.
C.
A scientifically acknowledged principle that has been confirmed by repeated experimental observations.
D.
The final outcome of an experiment completed one time.
Answers
Please help with this question ignore my lines they might be wrong
Answers
The correct links for the definitions and their characteristics including sex chromosomes and reproduction is:
Sex chromosomes: Found as XX or XY genotype in humans.Sex linkage : XY genotype in the organism results in X chromosomes carrying recessive characteristics being expressedHomozygous: An organism that possesses identical alleles of a particular gene.Haploid : Cell which has a single set of unpaired chromosomesPhenotype : Characteristics of an organism determined by interaction of genes: Homologous chromosomes: Possesses the same number and pattern of genes but may have different allelesWhat are some terms in reproduction ?Sex chromosomes are a pair of chromosomes that determine the sex of an individual. XY genotype in the organism results in X chromosomes carrying recessive characteristics being expressed
Haploid refers to a cell or organism that has a single set of unpaired chromosomes. Homozygous refers to an organism that possesses identical alleles of a particular gene. Phenotype refers to the observable traits or characteristics of an organism, which are determined by the interaction of genes with the environment.
Homologous chromosomes are a pair of chromosomes that have the same number and pattern of genes, although they may have different alleles.
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4. What is the basic function of a computer mouse? 1 point A) Displays video B) Prints documents C) Selects menu commands D) Performs basic computation
Answers
Answer:
The answer is c!
Answer:
c) select menu commands
True or False: When you grow the cells in your body stay the same size, but they multiply in number by growing and dividing.
Answers
Explanation: We grow to our full adult size via an increase in the number — not the size — of our cells. But some of our cells can change size and this can be for healthy or not-so-healthy reasons.
Hope this helps! ^^
During the G2 phase of the cell cycle, the cell carries out a specific function for the organism: for example a muscle cell contracting during exercise chromosome material has already been copied DNA synthesis is occurring daughter chromosomes are distributed into daughter nuclei and cytokinesis occurs.
Answers
Answer:
chromosome material has already been copied
Explanation:
The interphase is the previous step before mitosis occurs. The interphase is conformed of the G1, S, and G2 stages.
• During the S stage occurs the DNI replication process. At this point, also occurs the synthesis of histones and other associated proteins. This is the only stage where the DNI molecule is replicated.
• During the G2 phase of mitosis, sister chromatids are held together until they reach the Anaphase, during which other enzymes are activated to break the bonds and separate the chromatids.
• During the G2 phase of meiosis, sister chromatids and homologous chromosomes are held together by the cohesin proteins. Homologous chromosomes must be together until crossing over is completed, and cohesin proteins play an important role in making it possible. After the firsts stages of meiosis, sister Chromatids get completely separated in Anaphase II. During this phase it occurs the same as in mitosis, bonds break and chromatids get separated and go forward to each cellular pole.
• G2 stage is the final one before the cellular division. Here begins the slow process of DNI condensation. Duplication of centrioles completes. Structures such as spindle fibers are assembled.