Answer:
Enzymes
Explanation:
Enzymes are the biocatalyst that serves to speed up the rate of chemical reactions by lowering down the required activation energy. They are proteins and are not used up during the reactions. Breakdown of luciferin is also regulated by the enzyme. Carbohydrates and fats serve as energy source mainly. Simple sugar is also a carbohydrate and serves as an energy source.
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in what soil layer does an earthworm live? explain your answer
They live in the topsoil layer
Answer: Topsoil
Explanation: Topsoil is the layer with the most organic material, and the most aerated. Worms are actually a critical ingredient for the formation of this layer and if they go deeper, it is too dense for worms to burrow.
The “push” needed to start a chemical reaction is the:
enzymatic energy.
endothermic energy.
activation energy.
reactant energy.
its reactant energy, hope this helps :)
The “push” needed to start a chemical reaction is the activation energy. Option C is correct.
Activation energy is the minimum amount of energy that is required for a chemical reaction to start. It is the energy barrier that the reactants must overcome in order to form products. Without activation energy, the reactants would not have enough energy to break their bonds and form new ones. This is why chemical reactions do not happen spontaneously.
Enzymes are biological molecules that can help to lower the activation energy of a chemical reaction. This means that enzymes can make reactions happen faster by providing the necessary energy boost. Endothermic energy is the energy that is absorbed by a system during a chemical reaction. Reactant energy is the energy that is possessed by the reactants before a chemical reaction takes place. Option C is correct.
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which property of the gneiss sample prevented it from weathering?
crystalline texture
mineral composition
density
cleaveg
mineral composition is the answer
Why do siblings look and behave differently from each other?
Why? Because each child has different traits and genes from each parent.
-TheOneandOnly003
Because they are not alike in the mind, and have different traits and they have different thoughts.
What kind of density current is caused by a muddy, rapidly flowing mixture of sediment and water.
A turbidity current
it is sort of like a mud slide
Carol and Maria spread some dirt out in a flat pan. Their classmate Ben blew over the dirt with a straw. Some of the dirt moved and formed ruts and bumps. They propped up one end of the pan with a board so the dirt looked like a big hill. Then the girls sprayed the dirt with some water in a spray bottle. More dirt moved as the water ran down the hill. Both the wind and the water modeled what process? A) decomposition B) erosion C) gravity D) weathering
Why do living organism need energy
they need energy because there cells need to reproduce
Living organisms need energy for growth, maintenance, and work to carry out essential functions. Energy is acquired through metabolic pathways and food webs.
All living organisms need energy to grow and reproduce, maintain their structures, and respond to their environments.
Organisms require energy for growth, maintenance, and to perform work such as movement, essential for their livelihood. Energy powers various processes at the cellular level, enabling organisms to assemble macromolecules and maintain their organized states.
Living things acquire energy through metabolic pathways, ATP, and food webs, illustrating how energy flows through ecosystems.
What happens within the cell of a eukaryotic organism when an organelle is no longer functioning properly
Final answer:
When an organelle within a eukaryotic cell fails to function correctly, the cell may utilize autophagy to degrade and recycle the component, or it might trigger apoptosis if the damage is substantial, showcasing the cell's self-maintenance capabilities.
Explanation:
When an organelle within a eukaryotic cell is not functioning properly, the cell can employ several mechanisms to deal with the malfunction. One such mechanism is the autophagy process, where the cell degrades and recycles the damaged organelle. Alternatively, if the damage is too extensive, the cell may undergo programmed cell death, also known as apoptosis, to prevent harm to the organism as a whole. This showcases the cell's ability to maintain internal stability and health, ensuring its optimum functioning within the greater context of an organ or organism.
Autophagy serves as a quality control mechanism, allowing cells to remove malfunctioning organelles and recycle their components, thereby supporting cellular function and health. Similarly, apoptosis plays a crucial role in development and disease prevention by eliminating cells that cannot be repaired. This intricate balance of creating, maintaining, and, when necessary, decomposing cellular components underlines the sophistication of eukaryotic cells.
The total magnification of a specimen viewed under a compound light microscope is determined by
multiplying the power of the objective lens times the power of the ocular lens.
Which of these animals undergo complete metamorphosis?
A. Praying Mantis
B. Moth
C. Termite
D.Grasshopper
Answer:
The animal that undergoes complete metamorphosis would be the Moth
Explanation:
Could i get brainly ?
The codons that signal the end of a polypeptide chain are called?
Answer:
The codons that signal the end of a polypeptide chain are called the terminators.
Explanation:
The codons that signal the end of a polypeptide chain are called the terminators.
A codon is a series of 3 DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) nucleotides which corresponds to a particular amino acid or just stop the signals which are sent during the protein synthesis.
The terminators are the codons (also called termination codons) which signal the end of the polypeptide chain during the process of translation.
What role do specialized cells perform in establishing homeostasis? Specialized cells work independently to perform their specific functions. Specialized cells work only as a team to perform the functions of the body. Specialized cells work independently as well as in a team to perform the functions of the body. Specialized cells in the body perform all the functions that are necessary to maintain homeostasis.
Specialized cells work independently as well as in a team to perform the functions of the body.
Specialize cells are cells that are similar in their organizational structure but differ in shape, size and designed to perform specific functions depending on their role in the body. Thus, each of these cell types are formed and operates differently, ensuring that the cell can carry out the necessary body function that it is intended to complete.
Identify a specific structure in a single celled organism. State how that structure is involved in the survival of the organism
Pseudopodia in amoeba is a specific structure in a single-celled organism.
What do amoebas do to humans?Multiple of those contaminated show no signs at all—the amoeba lives calmly in their gut, providing on bacteria without causing trouble.
But in others, the parasite attacks the gut itself and can cause potentially fatal diarrhoea, intestinal ulcers, and liver spots.
Thus, Pseudopodia in amoeba is the answer.
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Velma is developing a computer model of translation. Her instructor points out that the model does not include ribosomes or ribosomal RNA. If the model is accurate in other ways, how does the absence of ribosomes and ribosomal RNA affect it? A. Certain amino acids would be missing from the polypeptides.
B. The polypeptides would be much longer than normal.
C. Amino acids would be joined together in an incorrect order.
D. Amino acids would not join together, and no polypeptides would form.
The correct answer would be option D.
Ribosomal RNA or ribosomes are the site if protein synthesis in a cell.
The small and large subunits of the ribosome form a complex around the initiation codon of mRNA.
The ribosome also has a peptidyl transferase activity which helps in adding amino acid to growing polypeptide chain.
Thus, in absence of ribosome no polypeptide chain would form.
What happens when no oxygen is present after glycolysis?
Fermentation occurs when there is no oxygen present after glycolysis.
You breed together a bean plant that has really long, skinny beans and a been plant with really short, fat beans. The offspring end up having medium length, medium width beans. This would be an example of what type of inheritance.
Answer : incomplete dominance
Explanation:
For a given trait, there are basically two types of alleles that are present. One allele is the dominant one and the other is recessive. Generally , the phenotype of an individual corresponds to the one coded by the dominant allele when both the alleles are present for a given trait, that is if a heterozygous condition is there. However, in some cases the dominant allele is not completely dominant over the recessive allele.When the dominant allele is not completely dominant then under heterozygous condition the phenotype expressed is a blend of the phenotypes expressed by both the alleles. For e.g if a red flower is crossed with white flower and we get a pink flower we can say that the allele shows partial dominance over the other. Similarly in the given question, the dominant allele is partially dominant over the recessive allele thus, a blended phenotype appears in the progeny. Such type of inheritance is known as incomplete dominance, partial dominance or semi dominance.what best describes transduction in bacteria
Which important complexes form due to complementary binding at the enzyme active site
"Substrate product complex" is the important complex among the choices given in the question that is formed due to complimentary binding at the enzyme active site. The correct option among all the options that are given in the question is the third option or the last option. I hope the answer helped you.
Which is an example of phototropism?
A. the roots of a plant following water
B. a Venus flytrap capturing a fly
C. a plant bending toward the light
D. roots growing into the soil
Which is an example of phototropism?
C. a plant bending toward the light
Answer:
An example of phototropism would be: "a plant bending toward the light"
Explanation:
The Latin root word photo means light
The Greek suffix tropism means: the turning of all or part of an organism in a particular direction
With that being said... The turning of all or part of an organism in the direction of light is known as phototropism
Your answer is C.) a plant bending toward the light
Green and brown algae share many common features. Both have pigments for trapping sunlight and use photosynthesis for energy. Both store their food as sugars. Both have cell walls and plant-like bodies. However, their DNA suggests that they are not even remotely related to one another. Green algae and brown algae show __________________ evolution, since they look similar, but are not close relatives.
Answer:- Convergent
Explanation :-
Convergent evolution is the process in which the organisms that are not closely related evolve independently in such a way that they acquire similar traits due to similar environment in which they live or the ecological niche that they occupy. Such structures that result from convergent evolution are called as analogous structures, which perform similar function but have different origins. Convergent evolution can be distinguished from parallel evolution in the fact that in parallel evolution similar traits develop in different species which shared a common ancestor and hence, are closely related.Thus, since the brown and green algae look similar but are not close relatives they show convergent evolution.
What is the major difference between the saturated and unsaturated zones
Saturated Zone
[ Completely full of water ]
Unsaturated Zone
[ The pore spaces are not completely full of water ]
The groundwater resource is divided into saturated and unsaturated zones. The saturated is characterized by the water filled in pores, whereas unsaturated is by incompletely filled space.
What are saturated and unsaturated zones?Saturated zones are the division of the groundwater that is found below the rocks and water table. The rocks and the pore space found in this zone are characterized by completely filed water spaces. The fractures and pores of this zone emerge in the groundwater.
The unsaturated zones are found above the saturated zones and just below the soil and land surfaces that are characterized by impartial water spaces. The pores and spaces of this zone are not totally filled with water.
Therefore, the saturated and unsaturated zones differ in water spaces.
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What type of organic molecule will be created if alanine bonded with many other amino acids such as serine and glycine
Ans.
The organic molecules that formed by the amino acids are known as proteins. Each amino acid binds with other amino acid with the help of peptide bond between amino group of one amino acid and carboxylic group of another amino acid.
Thus, 'when alanine binds with other amino acids, such as with glycine or serine, a protein molecule will formed.'
Alanine bonded with amino acids like serine and glycine forms a polypeptide. This molecule is linked by peptide bonds through a dehydration synthesis reaction, and its sequence determines its structure and function.
Explanation:When alanine is bonded with many other amino acids, such as serine and glycine, the organic molecule created is a polypeptide. A polypeptide is a long chain of amino acid residues linked together by peptide bonds. Each amino acid is attached to the next by a dehydration synthesis reaction, releasing a molecule of water and forming the peptide bond. The sequence in which these amino acids are linked determines the primary structure of the polypeptide. For example, the sequence Gly-Trp-Ala is distinct from Ala-Trp-Gly because the location of the free amine and carboxyl groups would be different. The polypeptide can fold into complex shapes to form proteins which have variable functions, depending on their amino acid sequence and resultant three-dimensional structure.
What is the difference between a population showing exponential growth and a population showing logistic growth? (Site 1)
Population growth refers to the patterns governing how the number of individuals in a given population changes over time. These are determined by two basic factors: the birth rate and death rate.
Answer:
A population can show two types of growth, exponential or logistic. Exponential growth occurs in case of unlimited resources like unlimited food or space. Organisms in the population do not have to compete with each other and the population can grow indefinitely. Such a growth model shows J shaped curve when population size is measured against time.
Logistic growth occurs in case of limited resources and competition. The population has carrying capacity i.e. maximum number of individuals it can hold before the population growth becomes stagnant. This model shows S shaped curve when population size is measured against time.
In real life logistic growth is shown by populations. Exponential growth is not possible since the resources get used up after some time.
The reference point for the coordinate (-2, 3) is _____.
A. (x, y)
B. (0, 0)
C. (2, -3)
D. (3, -2)
Answer:
Option A
Explanation:
The point of reference for any co-ordinate point is defined by the co-ordinate frame. In a co-ordinate frame there are six degrees of freedom – three Cartesian co-ordinates and three angular co-ordinates.
Cartesian Co-ordinates – X, Y, Z
Angular Co-ordinates – Rx, Ry, Rz
Angular co-ordinates basically define the rotation of a co-ordinate point about that axis.
In the given question, the co-ordinate point is two dimensional. Hence, its reference point would be x,y
Hence, option A is correct
If 8.0g of H2 reacts and 72g of H2O is produced how much O2 is consumed in the reaction
Answer:
64 g of O₂ is consumed in this reaction.
Explanation:
Mass of H₂O = 72 g
Mass of H₂ = 8 g
So, mass of O₂ consumed = mass of H₂O - mass of H₂ = 72 - 8 = 64 g
64 g of O₂ is consumed in this reaction.
The importance of material transport in plants for photosynthesis
Material transport in plants, specifically through xylem and phloem tissues, is essential for effective photosynthesis. Xylem transports water and minerals to leaves, while phloem distributes photosynthates throughout the plant.
Importance of Material Transport in Plants for Photosynthesis
The process of photosynthesis is vital for the survival of plants and for the production of oxygen, which is essential for most life on Earth. For photosynthesis to occur effectively, plants must have a system to transport materials such as water, nutrients, and photosynthates (sugars) throughout their tissues. The phloem and xylem are specialized transport tissues found in vascular plants that play critical roles in the movement of these essential materials.
Role of Xylem and Phloem in Material Transport
The xylem primarily carries water and dissolved minerals absorbed from the soil up from the roots to the leaves. This water is crucial for photosynthesis, where it is used to split water molecules to release oxygen and electrons needed in the synthesis of glucose. The phloem, on the other hand, transports the soluble organic compounds made during photosynthesis from the leaves to various parts of the plant through a process called translocation. This ensures that photosynthates reach all parts of the plant for growth, energy, and storage.
Water and nutrient uptake often occurs through structures such as dead velamen, rhizoids, and living rhizodermis in plant roots. Moreover, the process of evapotranspiration and stomatal regulation are crucial in managing water transport and preventing water loss, while maintaining the balance necessary for photosynthesis to proceed efficiently.
Select the correct part on the image.
Identify the cause of impure groundwater.
a. Tree
b. Consumption
c. Landfill
d. rocks and pebbles
Landfill seems to be a reasonable answer being as it is an area filled in with layers of garbage and soil. So i'd say c. I hope I helped :).
Which of the following is not true about sedimentary rocks? A. They formed through compaction and cemintation B. They are made up of sediments C.they formed from igneous rock fragments D. They are not part of the rock cycle (15Points!)
The answer is D.
Hope this helps
Answer:
The correct answer option is D. They are not part of the rock cycle.
Explanation:
The rock cycle is the transitional process where the rocks of a particular type change and turn into rocks of another type.
The breaking down of different rocks like igneous andmetamorphic and then the cementation and compaction of these broken rock pieces forms the sedimentary rocks.
Therefore, saying that sedimentary rocks are not a part of the rock cycle would not be true.
what is the only native gymnosperm in kansas?
Answer:
Juniperus virginiana, that is also commonly known as Eastern redcedar, only native gymnosperm in kansas. It is an evergreen tree and is most found throughgout the state.
It can grow to a height of around 30 to 35 ft with huge branches of 12-15 ft.
The trees have great economical and commercial importance because they are used as source of habitat for birds and small animals. Also, Because of compact, dense and long-lived foliage they are excellent agents of windbreaks. They serve for the purpose of multiple row windbreak because they are very dense and effective even in a single row.
Hope it help!
What occurs when sediment reaches its final destination. A. Erosion B. Deposition C. Weathering D. Transportation
deposition is the answer
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