Answer:
A. Three–fourths of the offspring should have red flowers
Explanation:
An aerobic activity is defined as one that _____ the heart rate and ____ the body's need for oxygen.
increases; decreasesincreases; increasesdecreases; decreasesdecreases; increases
Answer: increase, increase
The term aerobic literally means "with oxygen", and refers to the use of oxygen by muscles for generating energy. An aerobic activity will increase the rate of heat so that it can pump more oxygenated blood because of increase in muscle activity, the need of oxygen of body also increases.
Hence, an aerobic activity is defined as one that increases the heart rate and increases the body's need for oxygen.
Rosalind Franklin's x-ray diffraction images of DNA gave James Watson and Francis Crick information about DNA's
A. function.
B. structure.
C. optimal temperature range.
D. location within the cell.
Answer:
B. structure. is the correct answer.
Explanation:
Rosalind Franklin's x-ray diffraction images of DNA gave James Watson and Francis Crick information about DNA's structure.Rosalind Franklin utilized a method called X-ray crystallography to determine out the 3D form of molecules and made important contributions in understanding the accurate DNA structure. James Watson and Francis Crick used Franklin's data in creating a three-dimensional form of DNA. They proved that DNA is a double helix structure and the two strands of DNA are wind around each other like a twisting ladder.Biologists have separated Monera into two kingdoms according to the differences between the two groups. In which classification does this separation occur?
A) Two kingdom clasification
B) five kingdom classification
C) Six kingdom classification
What role do predators play in maintaining the balance of an ecosystem?
A)
They ensure that the ecosystem is not stripped entirely of its vegetation.
B)
They ensure the transfer of energy from plants to the rest of the food web.
C)
They are primarily responsible for the transfer of nutrients to the plants.
D)
They are primarily responsible for the cross pollination of plants in the ecosystem.
The correct answer is - A) They ensure that the ecosystem is not stripped entirely of its vegetation.
The ecological pole of the predators is to maintain the balance between the herbivores and the vegetation. By being able to kill and eat large numbers of herbivores, the predators do not allow their numbers to grow over what is an optimum for the survival of the ecosystem.
If there's no predators, for only a very short time, the numbers of herbivores will grow significantly, to the point where pretty much all of the vegetation will be stripped, thus ending without food and dying out very quickly, as well as damaging almost all vegetation and contributing to its dying out.
Predators ensure the transfer of energy from plants to the rest of the food web. Therefore, the correct option is B.
By controlling the population of their prey species, predators play an important role in maintaining the balance of the ecosystem. To keep herbivore populations under control and avoid overgrazing or excessive plant consumption, predators eat them. As a result plant populations can grow and regenerate permanently.
Predators also aid in the movement of energy through the food chain. They eat herbivores, and plants are a source of energy for herbivorous animals. As we move up the trophic levels, this energy is transferred from plants to herbivores to carnivores. Predators control herbivore populations by ensuring that energy is effectively channeled and dispersed throughout the ecosystem.
Therefore, the correct option is B.
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These are true and false questions and I want to be sure of my answers. Please someone check. Thanks:
The eight-element periodicity found in the Periodic Table is related to the number of electrons in the outermost energy level of the atoms that make up each element. True
2. Electrons in the first energy level of an atom are called valence electrons. False
3. For atoms important to life, if the first energy level is the outermost shell, it is stable with 2 electrons. If any other energy level is the outermost shell, it is stable with 8 electrons. True
4. Atoms tend to react in ways that give each atom a stable outer shell of electrons. True
5. Atoms with an outer shell that is almost empty are located on the right side of the Periodic Table while atoms with an outer shell that is full or almost full are located on the left side of the Periodic Table. False
6. Atoms in the same row of the Periodic Table tend to have the same number of valence electrons. False
7. Atoms with 7 valence electrons tend to be non-reactive. False
The student's true/false answers about the periodic table and atomic properties have been corrected, clarifying misconceptions about valence electrons and the reactivity of different elements based on their position in the periodic table.
The responses to the true/false questions on the properties and behaviors of atoms in the period table are as follows:
The eight-element periodicity found in the Periodic Table is related to the number of electrons in the outermost energy level of the atoms that make up each element. TrueElectrons in the first energy level of an atom are called valence electrons. False - Valence electrons are the electrons in the outermost energy level.For atoms important to life, if the first energy level is the outermost shell, it is stable with 2 electrons. If any other energy level is the outermost shell, it is stable with 8 electrons. TrueAtoms tend to react in ways that give each atom a stable outer shell of electrons. TrueAtoms with an outer shell that is almost empty are located on the right side of the Periodic Table while atoms with an outer shell that is full or almost full are located on the left side of the Periodic Table. False - It is the opposite.Atoms in the same row of the Periodic Table tend to have the same number of valence electrons. False - It is atoms in the same column that have the same number of valence electrons.Atoms with 7 valence electrons tend to be non-reactive. False - Atoms with 7 valence electrons are actually quite reactive as they tend to gain an electron to achieve a full outer shell.Take note that elements in the noble gases group have a full valence shell, making them very stable and non-reactive. Elements with 1-3 valence electrons tend to lose electrons forming positively charged ions, whereas elements with 4-7 valence electrons typically gain or share electrons to achieve stability.
some snake venoms are harmful because they contain enzymes that destroy blood cells or tissues. the damage cause by such a snakebite could best slowed by
Volcanoes occur at all of the following EXCEPT ____. where plates are moving apart where plates are moving together hot spots cool areas in the mantle
Ashley is taking a science course in college. she has conducted an experiment and needs to submit the results to her professor. ashley should write a _____. newsletter business report business letter research paper
Answer: research paper
Explanation:
A research paper is a written document which is generated by conducting surveys, and experiments. These are subjected to rejection on the basis of implementation of incorrect scientific methodology and incorrect data.
On the basis of the above description, research paper is the correct option. As it is mentioned that it is the outcome of experiments.
What happens to pyruvate molecules formed in glycosis in the absence of oxygen
Which of the following contain the genetic code?
1)carbohydrates
2)lipids
3)nucleic acids
4)proteins
Nucleic acids are the carriers of the genetic code. The molecules that carry and transmit genetic information in living things are called nucleic acids, specifically the deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) families. Therefore, the correct option is C.
The fundamental genetic material, DNA, is located in the nucleus of cells, while RNA is involved in gene expression and protein synthesis. Sequences of nucleotides, the constituent parts of nucleic acids, contain the genetic code. Proteins, lipids, and carbohydrates all play important roles in many cellular processes and functions within an organism, but none of them directly contain the genetic code.
Therefore, the correct option is C.
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explain the process of mitosis in a tissue culture for normal cells
Answer:
Cell tissue is taken from a living organism.
Cells divide and reproduce in the culture.
Cells continue mitosis until they are touching, then they stop reproducing until a cell dies.
Cells reproduce one layer thick and then stop reproducing.
Cells undergo 20 to 50 mitotic divisions in a tissue culture.
Explanation:
What two components are often found as part of an enzyme?
What is the correct order for respiration?
A. Krebs cycle, electron transport chain, glycolysis
B. Glycolysis, electron transport chain, Krebs cycle
C. Glycolysis, Krebs cycle, electron transport chain
D. Krebs cycle, glycolysis, electron transport chain
Answer:
Its C :)
Explanation:
The correct order of cellular respiration is Glycolysis > Krebs cycle > electron transport chain, hence option C is correct.
What is cellular respiration?It is the cellular process through which cells get oxygen inside it and release carbon dioxide outside of it.
Cellular respiration is the metabolic process that starts with the degradation of metabolic products and ends with the complete oxidation of these products.
Glucose is oxidized via glycolysis and produces pyruvate as an end product of glycolysis, this pyruvate is further oxidized into the Krebs cycle and releases electrons for the synthesis of ATP.
Therefore, for correct order of cellular respiration inside the cell option C, Glycolysis, Krebs cycle, electron transport chain is correct.
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Hair color and eye color are examples of a person's
Hair color and eye color are examples of a person's phenotype, which are the observable traits of an organism influenced by their genetic makeup (genotype) and environmental factors.
Explanation:Hair color and eye color are examples of a person's phenotype. In biology, phenotype refers to the set of observable characteristics or traits of an organism that are produced by the interaction of genetics (genotype) and the environment. Characteristics such as hair color and eye color are determined by the genetic material (genotype) that an individual inherits from their parents, and these traits are expressed physically (phenotype).
For instance, hair gets its color from the pigment melanin, which is produced by melanocytes in the hair papilla. Different hair color results from differences in the type of melanin, which is genetically determined. Similarly, eye color is also a genetic trait, and it too can vary based on the genetics of the individual.
This genetic diversity among humans results in the vast range of observable physical characteristics we see, such as different hair colors, eye colors, and much more. These traits can also interact with our environmental influences in ways that further shape our physical expressions.
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based on their molecular formulas, witch are not carbohydrates? a.c3h8o3, b.c10h18o9,c.c18h32o16, d.c4h8o2, e,c16h32o2, f
.c6h12o6
Compounds c16h32o2 and c4h8o2 are not carbohydrates as they do not conform to the general molecular formula for carbohydrates, which is Cn(H2O)n where the ratio of Carbon to Hydrogen to Oxygen is 1:2:1.
Explanation:The general formula for carbohydrates is Cn(H2O)n. It translates to the ratio of Carbon to Hydrogen to Oxygen is in the ratio 1:2:1. From the options: a.c3h8o3, b.c10h18o9,c.c18h32o16, d.c4h8o2, e.c16h32o2, and f.c6h12o6, Compound e (c16h32o2) and Compound d (c4h8o2) do not fit into this ratio and hence are not carbohydrates.
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When diverse peoples form a single nation, then _____ has occurred.
...?
Why do the sun and moon appear to be the same size when viewed from earth?
What do eukaryotic cells have that prokaryotic cells do not? A.Cell membranes B.DNA C.Cytoplasm D.Membrane-enclosed organelles
Answer:
The answer is D.Membrane-enclosed organelles
Explanation:
Eukaryotic cells have a cytoplasm organized in compartments, with separate or interconnected organelles, limited by biological membranes that have the same nature as the plasma membrane. In the nucleus is the genetic material in the form of chromosomes, where all the necessary information is given so that all the processes both intracellular and outside the cell are carried out.
Eukaryotic cells are more complex than prokaryotic cells and contain various membrane-enclosed organelles, such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, and others. The correct answer is D. Membrane-enclosed organelles.
These organelles perform specific functions within the eukaryotic cell. Prokaryotic cells, on the other hand, lack membrane-bound organelles and have a simpler internal structure. They do have cell membranes, DNA, and cytoplasm, which are also present in eukaryotic cells.
Eukaryotic cells have the additional feature of membrane-enclosed organelles, which provide them with compartmentalization and specialization of cellular functions, whereas prokaryotic cells lack these organelles and have a more simplistic internal structure.
Therefore, the correct answer is D. Membrane-enclosed organelles.
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. Chemical digestion of food involves:
A. condensation reactions in the small intestine
B. Enzymatic conversion of monosaccharides to polysaccharides in the small intestine
C. hydrolysis reactions in the large intestine (colon)
D. hydrolysis reactions in the small intestine
E. Random: I DONT KNOW / I JUST WANT POINTS OTHER ____
What might happen to the cell if the cell membrane stopped working?
Most of the pollution that causes acid precipitation to fall in southeastern Canada is released from __________.
central Canada
Mexico
the midwestern and eastern United States
the southern United States
Please help me.. My question is about Science.( The skeletal system) the question is: A thick band of bone forms around a broken bone as it heals. In time, the thickened band disappears. Explain how this extra bone can disappear over time. -- PLEASE HELP ME!!1 ...?
The section of the cell membrane illustrates one method of cellular transport. Consider steps A, B and C. What transport mechanism is represented by the model?
How has government regulation of public lands affected the environment?
The government regulations of the public land helped in sustaining the resources. In the lands, which are under the government regulation, the guidelines are provided for the use of land resources. These guidelines are designed in such a way that the resources are used in sustainable manner and would be available for future generations. Hence, the government regulation of the land prevented the exploitation of the resources and helped in maintaining a sustainable environment.
Answer:
The government regulations of the public land helped in sustaining the resources. On the grounds, which are under government regulation, guidelines are provided for the use of land resources. These guidelines are designed in such a way that the resources are used in a sustainable manner and would be available for future generations. Hence, the government regulation of the land prevented the exploitation of the resources and helped maintain a sustainable environment.
Explanation:
correct on edge
In a population, when the birthrate becomes higher than the death rate, the population’s growth rate
A) decreases.
B) increases.
C) slows to a stop.
D) levels off and remains constant.
Answer:
B) increases
Explanation:
Answer:
B) increases.
Explanation:
When births outnumber deaths, a population increases in size.
Q:Suppose the human gene coding for hemoglobin is inserted into a bacterial plasmid. A bacterial culture is transformed with the recombinant plasmid. Which of the following statements will be true?
A.The bacteria will not survive.
B.The bacteria will produce only human hemoglobin.
C.The bacterial will produce human hemoglobin and its own bacterial proteins.
D.The bacteria will produce human hemoglobin and other human proteins.
when a hydrocarbon chain is bent, it is called ____
Which of the following contains stem cells that can produce only their own type of cells?
A. 6-week-old embryo
B. 3-day-old embryo
C. Adult
D. Blastocyst
the apex answer is C) Adult
How is it possible for an offspring to exhibit a recessive trait if neither parent exhibited that recessive trait? What must be true about the parents’ genes for this to occur?
The remains of these form oil and natural gas
nonrenewable resources
renewable resources
methane hydrates
marine organisms
petroleum
nonliving resources
The correct answer is - marine organisms.
Both, the oil and the natural gas are formed on the basis of dead marine organisms. When the marine organisms were dying, they were falling in depths and onto the sea/ocean floor. The sea floor is covered with very soft sediments, and if they were not eaten by scavengers, or they have been covered with another layer of sediments, they have been relatively well preserved. As they were decomposing, the isolation, temperature, and pressure, managed to transform the dead remains of the marine organisms into oily sticky liquid that over time gained the characteristics that we see now in the oil and the natural gas.