Autotrophs can be classified into two groups according to which of these properties?
Answers
Answer:
(a) energy source, either sunlight or chemicals
Explanation:
Related Questions
In synaptic transmission, several neurotransmitters are released from the sending neuron and some of these are captured by the receiving neuron. Any neurotransmitter that remains is then degraded or reabsorbed into the transmitting neuron. Can you imagine the consequences of an abnormal degradation or reabsorption of neurotransmitters? What happens if neurotransmitters are persistently available in the synaptic space?
Answers
The receptor that are receiving persistent neurotransmitters will be in a continuous state of excitation which can be harmful.
What are neurotransmitters?The chemical substances that is mandatory for the transmission of signals in the body is referred to as neurotransmitters.
Any remaining neurotransmitter is subsequently destroyed or reabsorbed into the transmitting neuron.
The receptor that are receiving persistent neurotransmitters will be in a continuous state of excitation which can be harmful.
Thus, it is necessary that the neurotransmitters gets reabsorbed if in excess.
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GnRH stimulates the release of all of the following hormones except follicle-stimulating hormone. luteinizing hormone. testosterone. none of these.
Answers
Except for testosterone, all of the following hormones are stimulated by gnrh. Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) are produced and secreted by the pituitary gland in the brain as a result of gonadotropin-releasing hormone. Hence (c) is the correct option.
These hormones stimulate the testicles to produce testosterone in males. They induce the ovaries to produce oestrogen and progesterone in females.The main regulator of the reproductive axis is gonadotropin hormone-releasing hormone (GnRH). Its pulsatile release establishes the pattern of the gonadotropins luteinizing hormone and follicle stimulating hormone production, which in turn control the endocrine system's activity and gamete maturation in the gonads.
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GnRH stimulates the release of all of the following hormones except
A. follicle-stimulating hormone.
B. luteinizing hormone.
C. testosterone.
D. none of these.
5. Which is the complimentary DNA strand of the DNA strand:
ATGCATGCAATG * (T
(8 Points)
ATGCATGCAATG
TACGTACGTTAC
UACGUACGUUAC
TAGCATGCTTAC
None of the above
Answers
Answer:
TACGTACGTTAC (so the second one)
How do catalysts affect a chemical reaction?
Answers
Answer:
Compounds that increase the rate of a reaction are catalysts. By reducing the energy of the rate-limiting transition state, catalysts accelerate reactions. Catalysts do not influence a reaction's equilibrium state.
Catalysts generally affect a chemical reaction by increasing its reaction rate by lowering the activation energy of the reaction. Catalysts are widely used to enhance the rate of any chemical reaction without changing the product.
What are Catalysts?A Catalyst may be defined as a substance that overall changes the rate of reaction without being consumed in a reaction.
The catalysts are widely used when the rate of a given chemical reaction is not considerably altered by changing various conditions such as temperature, concentration, pH, etc., of the reactants.
Such new substances are brought which are not directly involved in the reaction and are mixed. And they finally made alterations in the given chemical reaction. Such new substances are known as a catalyst.
The process by which a catalyst changes the reaction rate without being involved in it is known as catalysis.
Therefore, catalysts generally affect a chemical reaction by increasing its reaction rate. Catalysts are widely used to enhance the rate of any chemical reaction without changing the product.
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the zoning board of adjustment will only grant a variance if the property owner demonstrates that
Answers
The zoning board of adjustment will only grant a variance if the property owner demonstrates that they would otherwise experience an undue hardship.
How to understand the process of granting variances?A variance is an official permission or permit that a local government grants to allow the property owner to bypass specific zoning requirements. Zoning regulations set the zoning rules for various types of properties, such as residential, commercial, industrial, and so on.
A property owner can request a variance from the zoning board of adjustment if they think they should be exempt from specific zoning restrictions. However, the zoning board of adjustment can only grant a variance if the property owner demonstrates that they would otherwise experience an undue hardship.
In zoning, an "undue hardship" refers to a unique challenge or obstacle that a property owner may face due to the zoning laws. If a property owner can demonstrate that compliance with the zoning laws would result in an undue hardship, the zoning board of adjustment can grant them a variance.Therefore, the zoning board of adjustment can only grant a variance if the property owner demonstrates that they would otherwise experience an undue hardship.
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Why do scientists believe that
mitochondria evolved before
chloroplasts?
A. because mitochondria are larger and stronger than
chloroplasts
B: because all eukaryotic cells have mitochondria but
not all eukaryotic cells have chloroplasts
C. because mitochondria are more efficient than
chloroplasts
D. because mitochondria live longer than chloroplasts
Answers
B. because all eukaryotic cells have mitochondria but not all eukaryotic cells have chloroplasts.
This is because mitochondria are essential for the process of cellular respiration, which is necessary for producing ATP (the primary energy source for cells) in eukaryotic cells. All eukaryotic cells need energy to survive, which is why they all have mitochondria. On the other hand, chloroplasts are only found in plant cells (and some protists), where they are involved in photosynthesis (the process of converting sunlight into energy). Therefore, scientists believe that chloroplasts evolved later in the evolution of eukaryotic cells, after mitochondria had already evolved
Which plant, shown in the cladogram below, shared a recent common ancestor with spikemosses and quilworths?
clubmosses
spikemosses
_quillworths
flowering plants
ferns
Spike mosses
a
Quillworts
Clubmosses
O Flowering plants
Answers
Answer:
clubmosses
Explanation:
Why are leaves necessary for a plant?
Answers
Answer:
PLEASE MARK AS BRAINLIEST!!
Explanation:
Leaves provide food and air to help a plant stay healthy and grow. Through photosynthesis, leaves turn light energy into food. Through pores, or stomata, leaves “breathe” in carbon dioxide and “breathe” out oxygen.
i hope this helped, have a good day!! xx
an example of a second messenger and its role in a signal transduction pathway
Answers
An example of a second messenger and its role in a signal transduction pathway is cyclic AMP (cAMP).Cyclic AMP is a second messenger that can trigger a variety of cellular responses, such as gene expression, enzyme activation, and ion channel regulation.
The process by which signals from outside the cell are received and converted into intracellular messages is referred to as signal transduction. When an extracellular signal binds to a receptor on the cell surface, a cascade of intracellular reactions is initiated, resulting in the generation of second messengers. Second messengers are small molecules that aid in the transmission of signals within the cell. Cyclic AMP (cAMP) is one of the most well-known second messengers. Cyclic AMP is produced in response to extracellular stimuli that activate G protein-coupled receptors (GPCRs). Once activated, GPCRs activate an enzyme known as adenylate cyclase, which converts ATP to cAMP. Cyclic AMP then activates protein kinase A, which activates several downstream signaling pathways, including gene expression, enzyme activation, and ion channel regulation.
In summary, cyclic AMP (cAMP) is an example of a second messenger that plays a critical role in signal transduction pathways. It is produced in response to extracellular stimuli that activate G protein-coupled receptors, and it activates protein kinase A, resulting in a variety of cellular responses such as gene expression, enzyme activation, and ion channel regulation.
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aerobic respiration meaning
Answers
Aerobic respiration is a chemically preformed process where oxygen is being used to generate energy from sugars or carbohydrates.
Heterotrophs are organisms that consume other organisms in order to gain energy. Compare two different categories of heterotrophs in terms of how they obtain energy. Explain your answer in one to two sentences.
In three to five sentences, compare and contrast the flow of matter and energy in each trophic level for land-based ecosystems and marine ecosystems. How and why are they similar, and how and why are they different?
Answers
Answer: Photoheterotrophs are organisms that get their energy from light, but must still consume carbon from other organisms. Photoheterotrophs cannot utilize carbon dioxide from the air. By contrast, Chemoheterotrophs get their energy and carbon from other organisms.
Explanation:
8. Tell the difference between mammalian and non mammalian blood:
Answers
Answer: Mammals:they have hair, they give birth to babies,warm blooded,have sweat glands. Examples:bear,whales,human beings,etc. Non-mammals:they don't have hair or fur,lay eggs,cold blooded.
what role do wind patterns have in determining climate
Answers
Answer:
Wind carries moisture into an atmosphere, as well as hot or cold air into a climate which affects weather patterns. Therefore, a change in wind results in a change of weather.
Explanation:
Brainlest is appricated
compared to cells with normal gtp, what would result if a g protein-coupled receptor was activated but treated with a nonhydrolyzable version of gtp (a form of gtp that cannot be converted to gdp) that was taken up by the cells?
Answers
The result if a g protein-coupled receptor was activated but treated with a nonhydrolyzable version of gtp that was taken up by the cells will be higher cAMP and higher protein kinase A activity.
A transmembrane helical protein called a G- protein-coupled receptor (GPCR) is physically connected to a smaller G protein at the cytosolic location. GTPase switch proteins include G-protein. Alpha, beta, & gamma are the three subunits that make it up. A catalytic subunit is the alpha subunit. Guanine nucleotides like guanosine diphosphate (GDP) and guanosine triphosphate interact with it (GTP). The alpha subunit is inhibited by the beta-gamma complex. If a g protein-coupled receptor was activated but treated with a nonhydrolyzable version of gtp the result will be higher cAMP and higher protein kinase A activity.
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Which macromolecules release energy the quickest?
a lipids
b proteins
c carbohydrates
d nucleic acids
Answers
Can you explain why
Florida gets so much
more rain in the summer
months than in the
winter months?
Answers
Answer:
Air that is warmer is able to evaporate more water into the atmosphere. An air mass with more water vapor available to precipitate will naturally create more precipitation.
Explanation:
Most of South Florida has a tropical climate. There is a defined rainy season from May through October, when air mass thundershowers that build in the heat of the day drop heavy but brief summer rainfall. In some years the dry season becomes quite severe and water restrictions are imposed to conserve water.
Answer:
Summer is, as usual, the rainiest season because of thunderstorms, but also because of the contribution given by hurricanes, Also another reason is how close Florida is to the ocean and the humidity and heat when ever it's summer and hot out, so I believe that's why it rains the most in Summer than winter
Explanation:
The "safe keeping" of a eurkaryotes genetics is the job of the 1. A. DNA C. nucleolus B. ribosome D. nucleus
Answers
The structure that keeps guard safe in eukaryotes is the nucleus.
Eukaryotes are cells that have a cell nucleus. The nucleus is a structure that stores most of the cell's genetic material.
In addition, the cell nucleus has a membrane that strictly controls the entry and exit of substances. Therefore, this membrane which is called the karyotheca is of great importance to keep the DNA of the cells safe.
Therefore, the correct answer is "D) nucleus".
Does Astigmatism cause blindness? Can Astigmatism be cured?
Answers
Answer:
Astigmatism is a problem of how the eye focuses light typically caused by a defect in the lens, resulting in distorted images. Astigmatism is not an eye disease or health problem. While it can cause blurred vision, eye strain, and headaches, particularly after prolonged reading, it does not cause blindness.
Astigmatism can be corrected with glasses, contact lenses, or refractive surgery (i.e. laser eye surgery), although treatment may not be necessary if the symptoms are mild. Glasses and contact lenses both compensate for the irregular shape of the cornea and help to focus light properly into the back of the eye
A father is heterozygous (AO) for his type A blood and a mother is heterozygous for her type B(BO) blood. What percentage of their offspring would you expect to have a child with O type blood?
Answers
Answer:
2 : 2 BO : OO
Explanation:
Children either have blood group B or O thus the probability of a child being either blood group B or O is 50%.
Once you’ve decided on your three organisms, the next step is to ask questions about the characteristics of the organisms you chose. This step will help you complete the Venn diagram. Here are a few questions to help you:
How many stages are present in the life cycles of these organisms?
Does a metamorphosis occur during their life cycles?
How do these organisms gain energy for their growth?
Where do these organisms live on Earth?
Can these organisms move freely?
What type of reproduction do these organisms have?
Are the organisms genetically identical or different from their parents?
Do these organisms produce many or few offspring at one time?
What other specialized structures or reproductive strategies do these organisms have?
life cycle: an organism’s stages of growth and development that lead to the production of offspring
Write down two additional questions you’ll research.
URGENTT
Answers
(giving brainliest and 30 points)
1. Discuss the environmental l issues to creating artificial life
2. Discuss the Social issues to creating artificial life
Answers
Answer:
1.the transition to life, the evolutionary potential of life, and the relation between life and mind and culture.
2.The creation of artificial life would have to consist, we assume, in the creation of an artificial living entity, henceforth an ‘artificial organism’.1 We will take an organism to be artificial just in case either
Explanation:
#keepsafe
What happens if the first line of defence is breached?
(Will mark as brainliest)
Answers
what happens if the first line of defence is breached?
Damage to the skin, such as burns or cuts, very quickly leads to complications and infections that before modern-day antibiotics could easily prove fatal. Once the outer line of defence is breached, the body very quickly starts up its first major attack on the invading substances.
How are proteins used in mating by Japanese beetles
A. They build mitochondria from proteins
B. They use proteins to store lysosomes
C. They send proteins as chemical messages
D. They store proteins in the their large vacuoles
Answers
Answer:
C. They send proteins as chemical messages
Explanation:
In the case of Japanese beetles, the female is the one who attracts the pheromones that have a role in the mating. The pheromones are the chemicals that serve to get a social response from the same species.
The males, however, produce the protein that helps them discover the pheromones which afterwar is sent to the female with the goal of mating.
Natural resources are spread equally within a city is that true ?
Answers
(Its actually Physical Science)
Which two elements in the list would bond together based on their ionic charges?
A. calcium and potassium
B. potassium and neon
C. potassium and iodine
D. calcium and neon
Answers
Answer:
It's C. Potassium and iodine
The two elements in the list that would bond together on their ionic charges is potassium and iodine. The correct option is C.
What is ionic bond?Ionic bond, also known as electrovalent bond, is a type of linkage formed in a chemical substance by the electrostatic attraction of ions with opposite charges.
When the valence (topmost layer) electrons of one atom are indefinitely transmitted to another, a bond is formed.
The complete transmission of valence electron(s) among both atoms is referred to as ionic bonding.
It is a chemical bond that produces two opposing ions. The metal loses electrons in ionic bonds to become a positively charged cation, meanwhile the nonmetal chooses to accept those electrons to become a negatively charged anion.
Ionic bonds are formed by potassium iodide (KI). Iodine and potassium have very divergent electronegativities.
Since ionic bonds form between atoms with a large difference in electronegativity, the two atoms would form an ionic bond.
Thus, the correct option is C.
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Veterinary Science!!
Has Bruno been exposed to other reptiles recently?
Bruno's poor chameleon is once again visiting the vet because his mouth is swollen, and he is drooling. Bruno's
chameleon has previously been treated for stomatitis caused by bacteria. The vet suspects that this is a recurrence of the same issue. Which question would the herp veterinarian MOST likely ask Bruno as she investigates this recurring stomatitis?
What kind of food does Bruno generally eat?
Have you been handling Bruno more than usual?
Has Bruno shown signs of sloughing his skin lately?
Answers
The question that the herp veterinarian MOST likely ask Bruno as she investigates this recurring stomatitis is: "Has Bruno been exposed to other reptiles recently?"
What is the question?The question above should be asked because germs that are typically found in the environment, including on other reptiles, can cause stomatitis, sometimes known as mouth rot.
Bruno could have acquired the sickness once more if he has come into contact with other reptiles that are carriers of the disease. Thus the reptiles are the vectors that are carrying the disease.
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......................................................peridot
Answers
Answer:
It's C. They are mostly made up of hydrogen and helium
The removal of undigested remains of food from the alimentary canal is called
Answers
Answer:
Egestion
Explanation:
This is because Egestion is the process where undigested food remains is removed or discharged from the alimentary canal as faeces. In Egestion, the food that refuse to digest form faeces and it is remove from the body through defecation. While exrection is the removal of wastes products like urine from the alimentary canal.
Phenotypic variation in tail length of mice has the following components: VA = 3; VD = 1; VEp = 1; VE = 4, VGE = 1 where VA is additive genetic variance, VEp is epistatic variance and VE is other environmental variance and VGE is genotype by environment interaction. What is the broad sense heritability (H2) for tail length in this population? a. 0.5 b. 0.2 c. 0.4 d. 0.6 e. 0.3
Answers
The broad-sense heritability (H2) for tail length in this population is 0.5, which corresponds to option (a) in the given choices.
To calculate the broad-sense heritability (H2) for tail length in this population, we need to follow these steps:Step 1: Identify the variance components provided.- Additive genetic variance (VA) = 3
- Dominance genetic variance (VD) = 1 (although not asked, it's essential for calculating H2)
- Epistatic variance (VEp) = 1
- Other environmental variance (VE) = 4
- Genotype-by-environment interaction (VGE) = 1Step 2: Calculate the total genetic variance (VG).
VG = VA + VD + VEp
VG = 3 + 1 + 1
VG = 5Step 3: Calculate the total phenotypic variance (VP).
VP = VG + VE + VGE
VP = 5 + 4 + 1
VP = 10Step 4: Calculate the broad-sense heritability (H2).
H2 = VG / VP
H2 = 5 / 10
H2 = 0.5The broad-sense heritability (H2) for tail length in this population is 0.5, which corresponds to option (a) in the given choices.
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According to the current model of fluid flow in xylem, what creates the force that moves water from the roots to the leaves?.
Answers
According to the current model of fluid flow in xylem An increase in water tension in leaves.
How does the xylem function?The vascular plants' xylem is responsible for moving water and nutrients from the ground to a stems and leaves. Xylem provides a crucial "supporting" role by giving tissues and organs strength, preserving the structure of the plant, and resistant to bending.
How is xylem created?Procambium and cambium, two types of meristematic cells, give rise to the cells that make up xylem tissue. These meristems have pluripotent stem cells, or so-called "stem cell niches," which have the capacity to divide constantly and sustain the stem cell population.
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