Answer:
The water vascular system of echinoderms functions in locomotion and feeding.
Explanation:
The water vascular system of echinoderms is responsible for the functions in locomotion and feeding. The water vascular system is a hydraulic system that is used by echinoderms for example sea stars and sea urchins, for the purpose of locomotion (movement), food and waste transportation, and respiration. This system is composed of canals connecting numerous tube feet.
What are the two main processes carried out by the excretory system?
A.Absorbing needed nutrients and getting rid of the excess
B.Separating and eliminating wastes from the body
C. Maintaining weight and regulating temperature
D.Controlling the amount of water in the body and eliminating salt
Explanation:
[tex]B.) Separating \: and \: eliminating \: wastes \: from \: the \: body \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ hope \: it \: helps \: you \: (. ❛ ᴗ ❛.)[/tex].
Different types, or isotopes, of oxygen exist in the ocean and are incorporated into the skeletal fragments of animals. What can the ratio of preserved isotopes tell us about climate?
Answer:
The correct answer is - Certain ratios of oxygen reflect either warmer or cooler ocean temperatures.
Explanation:
Ocean have different isotypes or types of oxygen throughout the ocean and also incorporated in the shells of the marine animals of the particular region and time.
We can found out the climate and more particularly the temperature of the ocean as The more 18^O found in the shell or sediment of the animal, the colder the climate and vice versa, however, it is opposite in relation to that of glacier ice.
Which of the following is NOT an example of Karst topography?
A. Haystack hills
B. Sinkholes
C. Runnels and flutes
D. Glaciers
What is the main transformation that occurs during glycolysis?
Glycolysis produces ATP and pyruvate by oxidizing water.
Glycolysis produces ATP and pyruvate by oxidizing glucose and NAD+.
Glycolysis produces pyruvate, ATP, and NADH by oxidizing glucose.
Glycolysis produces CO2, ATP, and pyruvate by reducing glucose.
Answer:
Glycolysis produces pyruvate, ATP, and NADH by oxidizing glucose.
Explanation:
This is the main transformation that occurs during glycolysis. Hence, this statement is correct answer.
Glycolysis produces pyruvate, ATP, and NADH by oxidizing glucose.
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A simple test to differentiate between Staphylococcus and Streptococcus is the addition of H2O2 to a colony to see if bubbles form, which are positive for catalase. Which organism would be positive
Answer:
The Correct answer is B, Staphylococcus.
Explanation:
The Catalase test is used to differentiate Staphylococci (Catalase positive) from Streptococci (Catalyst negative). The enzyme catalase is produced by bacteria that respire using oxygen and protects them from the toxic by-products of oxygen metabolism.
Catalase positive bacteria includes strict aerobes as well as facultative anaerobes. Catalase negative bacteria maybe anarobes or facultative anarobes that only ferment and don't respire using oxygen as terminal electron acceptor.
Catalase converts hydrogen peroxide to water and oxygen gas. Though both Staphylococcus and Streptococcus are gram positive bacteria, only Staphylococcus produces catalase enzymes.
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Answer:
1. changes
2.Adaptations
3. Ecosystem
4.Homeostasis
Explanation:
It is common sense that Morphological Diversity gives Evolution to genetic makeup of coming generation.It can be defined as "change"
Adaptations are certain Methods by which an organism gains certain capalility or advantage towards the changed environment
Ecosystem is where biotic/abiotic component interact
and Homeostatis is the constant of internal conditions of an organism.
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What is a gene? ……………….
Answer:
2nd one is correct
Explanation:
Answer: B
Explanation:
__________ commonly cause increased energy and alertness, increased heart rate and respiration, and loss of appetite.
Answer:
Stimulants commonly cause increased energy and alertness, increased heart rate and respiration, and loss of appetite.
Propose what happens to sodium and potassium ions during hyperpolarization.
Answer:
En biología, la hiperpolarización es cualquier cambio en el potencial de membrana de la célula, que hace que esté más polarizada. Es decir, la hiperpolarización es un incremento en el valor absoluto del potencial de membrana de la célula.
During hyperpolarization, sodium ions are pumped out of the cell and potassium ions are pumped into the cell, leading to an overall increase in the negative charge within the cell.
What is hyperpolarization?Hyperpolarization is a process that occurs in cells, particularly in neurons (nerve cells). It is characterized by an increase in the negative charge within the cell, which results from the movement of ions across the cell membrane. During hyperpolarization, sodium ions are pumped out of the cell and potassium ions are pumped into the cell. This results in a more negative charge inside the cell, which can inhibit the cell's ability to respond to stimuli.
Hyperpolarization is the opposite of depolarization, which is a process that leads to a decrease in the negative charge within a cell and an increase in the cell's excitability. Hyperpolarization can be triggered by various stimuli and plays a role in the normal functioning of the nervous system.
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Select all the correct answers. Which two examples may be converted into fossil fuel after being buried under pressure for a long period of time?
Answer:
Coal and petroleum.
Explanation:
Coal and petroleum are the two examples that can be converted into fossil fuel after being buried under pressure for a long period of time. Both coal and petroleum formed underground with the presence of very high temperature and pressure. Coal is formed when the plant material is placed under high temperature and pressure for thousand of years while on the other hand, petroleum formed when dead bodies of animals are present underground for a very long time with a suitable pressure and temperature turn into petroleum.
Two views of a kidney. Which level of organization is shown in the diagram? organ ,tissue, organ system, cell
Answer:
tissue
Explanation:
its tissue
Answer:
b. tissue
Explanation:
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Raghavan has two identical plants. He plants one outside in the ground. The other is growing indoors without direct light. Raghavan predicts the weight of the carbon dioxide and water taken in by the plant and the oxygen given off by the plant.
Raghavan notices that a rabbit family has been eating the outdoor plant and that small insects are eating the indoor plant. He sees a fox hunting rabbit, but nothing is eating the insects.
The diagrams show Raghavan’s plants. Raghavan predicted the weight of carbon dioxide and water taken in by the plant. He predicted the weight of oxygen given off by the plant. What should he predict for the weight of the sugar the plant made?
A. 1.80 gram
B. 3.46 gram
C. 3.72 gram
D. 5.64 gram
Answer:
be honest, the correct answer is 1.80 gram
Explanation:
.DNA is the genetic material that makes up living things, and folic acid plays an important role in the formation of DNA. Jon wants to study the effect of folic acid on DNA formation in microbes. Which statement accurately describe the variables in this study?
A.
Answer:
folic acid is the variable
Explanation:
Answer:
Explanation:
folic acid is the variable
Which growth model is a realistic representation of population growth?
A realistic representation of population growth is the _____ growth model.
Answer:
Logistic Growth Model
Explanation:
The logistic model is realistic because it suggests the fact that the population of species is regulated and controlled by the carrying capacity (maximum members that an ecosystem supports) of the ecosystem. The population becomes small when the carrying capacity decreases.
All of the given answer options represent organisms that could coexist in an ocean
ecosystem. In this hypothetical ecosystem, which organism will receive the least amount of
energy in the food pyramid?
Tuna
Great white shark
Seal
Anchovy
Answer:
B. Great white shark
Explanation:
In any food pyramid, the organism at the top of the food pyramid usually gets the least amount of energy in the food pyramid, while those at the bottom have the highest energy in the food pyramid. This is because, as energy moves up the pyramid, some are lost.
In an hypothetical ecosystem, the great white shark will top the food pyramid. Therefore, it would get the least amount of energy in the food pyramid.
while obtaining the vitals during the seconary assessment, the EMT will assess the respirations. what woul dbe included about the respirations during the primary vitals assessment
Answer:
Rate and tidal volume
Explanation:
Tidal volume is the volume of air moved in or out of the lungs with each normal breath. A normal tidal volume is around 500 to 600 mL per inspiration and/or 6 to 7 mL per kilogram of body mass. An Emergency Medical Technician (EMT) should assess the respiratory rate (as well as rhythm and quality), having into account that a normal respiratory rate in an adult is 12 to 18 breaths per minute (BPM). Moreover, an appropriate tidal volume is also fundamental in assisting individuals in respiratory distress and arrest.
[tex]what \: is \: photosynthesis \: {?} [/tex]
[tex]\sf\purple{Photosynthesis}[/tex] is a process by which phototrophs convert [tex]\sf\pink{light\:energy}[/tex] into [tex]\sf\red{chemical\:energy}[/tex] .
The word “photosynthesis” is derived from the [tex]\sf\blue{Greek}[/tex] words "phos" (which means “light”) and "σύνθ-εóîς" (which means “combining together.”) And so it means “combining together with the help of light.”
The process of photosynthesis occurs in [tex]\sf\green{green\:plants}[/tex] (the primary producers in a food chain) and a few other autotrophic organisms such as cyanobacteria, purple bacteria and green sulfur bacteria.
Following is the photosynthesis [tex]\sf\purple{formula}[/tex] :
︎︎︎ 6 [tex]CO_{2}[/tex]+ 6 [tex] H_{2}O[/tex] —> [tex] C _{6} H_{12} O_{6}[/tex] ([tex]\sf\blue{glucose}[/tex]) + [tex] 6 O_{2}[/tex] ([tex]\sf\pink{oxygen}[/tex]).
[tex]\large\mathfrak{{\pmb{\underline{\red{Mystique35 }}{\red{❦}}}}}[/tex]
During the respiration of an organism
A, 1 molecule of glucose produces 2
ATP molecules whereas in the
respiration of another organism B, 1
molecule of glucose produces 38 ATP
molecules. Which of the organisms, A
or B has anaerobic mode of
respiration? Explain with reason.
Answer:
The correct answer is - organism A is anaerobic.
Explanation:
Organism A can convert glucose into alcohol, as it undergoes anaerobic respiration, however, there is an incomplete breakdown of glucose. In this process, there are only two molecules of pyruvate formed, and the rest convert to lactic acid or ethanol.
The energy is only enough to release two ATPs. In the aerobic process, there is a complete breakdown of glucose in CO2 and H2O with 38 ATPs.
The correct answer is - organism A is anaerobic.
What term is used to describe decay that happens in the presence of oxygen?
Answer:
Aerobic Decomposition. When organic materials decompose in the presence of oxygen, the process is called “aerobic.” The aerobic process is most common in nature
What is one factor that could account fir a rise int the water table? A.more clouds B.less porous soil C.more precipitation D.more wind
Answer:
I agree that it is C
Which animal population do scientists frequently study in order to identify specific ways to evaluate the impacts of contaminants on biological communities?
a. bottlenose dolphins
b. giant tortoises
c. mallard ducks
d. swan geese
Answer:
mallard ducks I think so
Answer:
D.
Explanation:
Galapagos tortoises have been and continue to be threatened by predation and habitat destruction from invasive species, and increasing human
What kind of material is found in the C horizon of a soil profile?
hardpan
mineral and organic matter
clay particles
partially weathered parent material
Explanation:
partially weathered parent material
Answer:
partially weathered parent material
Explanation:
what formulae do we use when calculating the number of organisms using capture recapture method. Some help I will give you brainliest
Answer:
Use the information on capture recapture method to calculate the total number of organisms in habitat.
First capture : 200
Second capture : 120
Number of organisms with second capture =40. The number of of organisms therefore is 600
Explanation:
Hope this helps u
If an egg with 22 chromosomes is fertilized by a normal sperm with 23 chromosomes the result is a condition called
Answer: the answer is monosomy
Draw a Punnett Square to show Queen Victoria and her husband Albert. Queen Victoria’s genotype will be XX^H and Albert will be XY. X^H indicates the female sex chromosome carrying the gene for hemophilia.
Explanation:
XY XX^H
XX^H XX^H XY XX^H XX^H
XY XY XY XY XX^H
all the royal families in Europe were related
that must mean 1 family ruled all of europe
The family pedigree of Queen Victoria shows a number of hemophilic descendants. Because hemophilia is recessive disorder and Queen Victoria was a carrier. X-linked recessive disease most often occurs in males because Males have only one X chromosome.
XY XX^H
XX^H XX^H XY XX^H XX^H
XY XY XY XY XX^H
Which chromosome will cause the disease?
A single recessive gene on that X chromosome will cause the disease. Females have two X chromosomes so they can act as carriers for the disease.
What is hemophilia?
Hemophilia is a bleeding disorder that slows the blood clotting process.Hemophilia is x-linked recessive disorder
So, Queen Victoria was a carrier.
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Explanation:
The answers to number 10 are
I for homeostasis
B for metabolism
B for biosphere
E for ecosystem
I for system
E for biology
the answer to no. 11 are
B for biodiversity
B for metabolism
G for organism
G for biosphere
I for cell
I evolution
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Manpower is the most important resource of an organization. Explain.
Answer:
Manpower planning is counted as the most important function of the human resource management of the organization. It helps in managing the maintenance of the business goodwill by providing value to the man, material, machine and money.
One of your homework questions is reproduced below.
All six answers were correct. Can you
think of two more conceivable answers to the question below?
Many promoters are regulated by proteins that bind to adjacent DNA sequences. Which of the following is correct?
A. Some transcriptional regulators stimulate transcription and do so only when binding a low molecular weight ligand.
B. Some transcriptional regulators stimulate transcription and do so only when NOT binding a low molecular weight ligand.
C. Some transcriptional regulators inhibit transcription and do so only when binding a low molecular weight ligand.
D. Some transcriptional regulators inhibit transcription and do so only when NOT binding a low molecular weight ligand.
E. Some transcriptional regulators stimulate transcription and do so only when phosphorylated.
F. Some transcriptional regulators repress transcription and do so only when phosphorylated.
It’s not multiple choice, I need help coming up with two more answers that are true
Answer:
Phosphorylation activation:
1- p53 (transcriptional activator)
2- CDK8-cyclin C (transcriptional inhibitor)
Explanation:
Phosphorylation is a well-studied post-translational modification mediated by a protein called 'kinases' which phosphorylates specific protein substrates. This post-translational modification (phosphorylation) acts as a reversible switch capable of modulating protein function. Phosphorylation at specific amino acid residues (e.g., tyrosine, serine) controls protein function by triggering conformational changes in the phosphorylated protein. For example, P53 is a transcription activator activated by phosphorylation at multiple sites in its N-terminal region. P53 activates transcription of different genes by modulating protein-protein interactions with different substrates (e.g., MDM-2, CBP/p300, TFII). On the other hand, cyclins are proteins that have no enzymatic activity but are able to activate cyclin-dependent kinases (CDKs) by binding to them. CDK8-cyclin C (SRB10-SRB11) is a negative regulator of transcription that is able to inhibit transcription by phosphorylating the carboxy-terminal domain of the largest subunit of RNA polymerase II (Pol II) before the formation of the preinitiation transcriptional complex.
Apart from man, write down four other organisms that are affected by the destruction of crops due to the fall armyworm. Give a reason for you answers
Answer:
Women, Herbivore animals, carnivore animals
Explanation:
Because they need food to survive.
what is the task of vessel cells in xylem
Answer:
Tracheal, vessel or vascular cells have one or more pores in their terminal walls. They reabsorb the common walls. They adopt a vertical position and are linked together forming a continuous tube or glass. They constitute the Xylem of angiosperms, plants that have flowers, and their function is to conduct water and other nutrients.
Explanation:
The vascular elements or vessels are specialized tracheids whose terminal walls are crossed by one or more pores; a vertical series of vascular elements that form a continuous tube is called a vessel. The tracheids are cells that conduct water and salts of the xylem, through which the raw sap circulates. It is typical of gymnosperms. The tracheids are unicellular, very elongated and with numerous simple, areolate pits, through which they intercommunicate.