Answer:
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Explanation:
I can speak French, German, Spanish, English, and Arabic.. I love learning languages and travelling by my van and see the world
Cuál es el órgano más grande del cuerpo humano
Answer:
Explanation:
La piel
Answer:
The skin is often known as the largest organ of the human body. This applies to the exterior surface, as it covers the body, appearing to have the largest surface area of all the organs. Moreover, it applies to weight, as it weighs more than any single internal organ, accounting for about 15 percent of body weight.
Explanation:
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Answer: 1. The corona is in the outer layer of the Sun's atmosphere—far from its surface. Yet the corona is hundreds of times hotter than the Sun's surface. ... In the corona, the heat bombs explode and release their energy as heat. But astronomers think that this is only one of many ways in which the corona is heated. Our Sun is surrounded by a jacket of gases called an atmosphere. The corona is the outermost part of the Sun's atmosphere. The corona is usually hidden by the bright light of the Sun's surface. ... During a total solar eclipse, the moon passes between Earth and the Sun. 2. The chromosphere is above the photosphere, the visible "surface" of the Sun. It lies below the solar corona, the Sun's upper atmosphere, which extends many thousands of kilometers above the chromosphere into space. The plasma (electrically charged gas) in the chromosphere has a very low density. Chromosphere is a reddish and glowing layer of gas above a star's (or Sun's) photosphere. It is actually the transition between corona and the photosphere. Out of the three layers of the Sun's atmosphere, chromosphere is the second one (with photosphere being the first layer and corona as the third) 3. The photosphere is the deepest layer of the Sun that we can observe directly. It reaches from the surface visible at the center of the solar disk to about 250 miles (400 km) above that. 4. The convection zone is the outer-most layer of the solar interior. It extends from a depth of about 200,000 km right up to the visible surface. At the base of the convection zone the temperature is about 2,000,000° C. Convection zone: This layer of the sun is above the radiative zone and is the outermost layer of the Sun's interior. It stretches from as deep as around 200,000 kilometers right up to the visible surface. ... Energy moves towards the Sun's surface through convection currents of heated and cooled gas. 5. The Sun's radiative zone is the section of the solar interior between the innermost core and the outer convective zone. In the radiative zone, energy generated by nuclear fusion in the core moves outward as electromagnetic radiation. In other words, the energy is conveyed by photons. This is the zone immediately next to the core, which extends out to about 0.7 solar radii. There is no thermal convection in this layer, but solar material in this layer is hot and dense enough that thermal radiation is all that is needed to transfer the intense heat generated in the core outward. 6. The Sun's central core is plasma with a temperature of around 27 million C . At such high temperatures hydrogen combines to form helium by nuclear fusion, a process that releases vast amounts of energy. This energy moves outward, towards the outer layers of the Sun. The core is the Sun's middle region where energy is generated by thermonuclear reactions, which create extreme temperatures of about 15 million degrees Celsius. These nuclear reactions use hydrogen to produce helium. brainliest?
Explanation:
what are hebivorus plants?
Herbivorous plants are plants that obtain their nutrients by consuming animals or animal products, rather than by photosynthesis. These plants can be divided into three main categories: carnivorous plants, which capture and digest insects and other small animals; omnivorous plants, which obtain nutrients from both animal and plant material; and parasites, which obtain nutrients by attaching themselves to a host plant or animal and extracting nutrients from it. Some examples of herbivorous plants include Venus flytraps, pitcher plants, and the Western Australian Christmas tree
Which statement about the factors that affect the affinity of hemoglobin for oxygen are FALSE? Group of answer choices Decreased O2 partial pressure diminishes affinity and this favors oxygen unloading and delivery to the tissues. CO2 increases the affinity of oxygen for hemoglobin so that hemoglobin binds oxygen more strongly. Decreased blood temperature increases hemoglobin affinity for oxygen. The affinity of hemoglobin for oxygen is higher than for carbon dioxide which results in oxygen being able to displace carbon dioxide from hemoglobin as the blood travels through the pulmonary capillaries. With decreasing pH, affinity decreases so that more oxygen is released from hemoglobin.
Answer:
CO2 increases the affinity of oxygen for hemoglobin so that hemoglobin binds oxygen more strongly
Explanation:
Hemoglobin (Hb) is a protein found in red blood cells that functions to transport oxygen (O2) to the tissues. This protein has four subunits and each subunit binds to a heme group. Each heme group in Hb contains an iron atom that binds to one O2 molecule. The affinity of hemoglobin for O2 is a critical mechanism that is dependent on the ability of Hb to carry O2 molecules. Hb is fully saturated with O2 when all of its four O2-binding sites are occupied. Moreoever, the O2-hemoglobin dissociation curve is a plot of saturation of Hb regarding the partial pressure of O2 (PO2). A rightward shift in the curve indicates that Hb has a decreased affinity for O2, while a leftward shift in the curve indicates that Hb has an increased affinity for O2. As CO2 concentration increases, hemoglobin's affinity for O2 decreases, thereby Hb binds to O2 less tightly at heme group sites and therefore the dissociation curve shifts to the right.
Pls help me it’s due today at 11:59
The component of a vaccine that makes it effective is the antigen.
What is a Vaccine?
A vaccine is basically a biological preparation that provides active acquired immunity to a particular disease. It contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins. Vaccines are designed to stimulate the body's own immune system to protect the person against subsequent infection or disease.
11) An antigen is a substance that causes the body to produce antibodies when it enters the body. These antibodies help the body recognize and fight the antigen if it enters the body again.
12) A vaccination is a way of introducing a weakened or killed version of a particular virus, bacteria, or toxin into the body. This weak or dead version of the virus, bacteria, or toxin stimulates the body's natural defense system to produce antibodies that are specific to that virus, bacteria, or toxin. These antibodies can then recognize and fight off the real virus, bacteria, or toxin if the body is ever exposed to it, thus preventing the individual from getting the disease. This is known as active immunity. The immunity created by the vaccination is typically long-lasting, and in many cases, lifelong.
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Which of these is measured during a scientific investigation? Group of answer choices Control group Test variable (independent variable) Outcome variable (dependent variable)
Answer:
Outcome variable (dependent variable)
Explanation:
In a scientific investigation, a DEPENDENT VARIABLE (also known as outcome variable) is the variable that is being measured. The dependent variable, as the name implies, responds to the changes made to the independent variable.
For example, in an experiment where the effects of different concentration of fertilizer is used to test plant growth (height), the HEIGHT OF THE PLANTS is the dependent variable because it is the variable being measured.
Question 39 (1 point)
Experiments with cattle have demonstrated that
a) they remember how humans have treated them
b) they can identify and remember individual human handlers
c) gentle treatment by humans makes them less fearful of humans
d) all choices are correct
Answer:
The correct answer is - d) all choices are correct.
Explanation:
Cattles remember the behaviour of human how they have treated them in the experiment and they also become less fearful of their handlers due to their gentle treatment.
Cattles develop memory and have a bond with their handlers and remember them and recognize them very well. In this experiment, it is found that animals also create an emotional bond with the human treat them well and gentle.
What are two ways that an organism can have a dominant phenotype ?
Ocean currents have a direct effect on climate by an interaction of which systems? (1 point)
O hydrosphere and atmosphere
O geosphere and biosphere
O geosphere and atmosphere
O biosphere and atmosphere
Ocean currents have a direct effect on climate by an interaction of ' geosphere and atmosphere'.
What is the atmosphere?
The atmosphere is basically the layer of gases surrounding the Earth. It is composed of nitrogen (78%), oxygen (21%), and trace amounts of other gases, such as argon, carbon dioxide, and water vapor. The atmosphere protects us from the sun's harmful ultraviolet radiation, helps keep temperatures moderate, and creates the weather patterns that make life possible.
Ocean currents act as a bridge between the atmosphere and the geosphere, transferring heat, moisture, and momentum between the two. This helps to regulate the global climate by moving warm water from the equator to higher latitudes and vice versa. This in turn affects air masses, cloud formation, and precipitation patterns, which can have a great impact on the climate. For example, warm ocean currents can strengthen cyclones, while cold currents can help prevent them. In addition, ocean currents can influence the rate at which heat is absorbed and released into the atmosphere, which can lead to extreme weather events like heat waves and droughts.
Hence, Option C is correct.
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Answer:
A) Hydrosphere and atmosphere
Explanation:
Took the quick check :)
Which of the following is a major benefit of commercial agriculture?
Answer:
Advantages of Commercial Farming
Explanation:
Advantages of Commercial Farming
Encouraging Improvement in Local Infrastructure. ...
Job Creation. ...
Lowering the Price of Products. ...
Increased Production and Enhancing Food Security. ...
Provision of Raw Materials for Agribusiness Manufacturing Companies. ...
Lowering the Cost of Production. ...
Foreign Exchange earner.
When the eye ball is too long it produces ____.
a.
nearsightedness
b.
farsightedness
c.
rods
d.
cones
Please select the best answer from the choices pro
Answer:
A. Nearsightedness
Explanation:
Nearsightedness usually occurs when your eyeball is longer than normal or your cornea is curved too steeply. Instead of being focused precisely on your retina, light is focused in front of your retina, resulting in a blurry appearance
Which of these describes an example of a keystone species that scientists should make efforts to protect?
A. More than 1,000 newly hatched wood frog eggs in a forest ecosystem.
B. A gopher tortoise that provides a home to more than 300 different species of animals in its burrow.
C. A nonnative population of lionfish living on a coral reef in Florida that have no natural predators.
D. A population of mistletoe plants that are parasitic because they depend on other trees and plants in the ecosystem in order to get what they need to survive.
Answer:
Explanation:
.
In addition to movement, arthropod appendages can be used
for
a feeding
b defense
c sensory reception
d all of the above
In addition to movement, arthropod appendages can be used for 'all of the above'.
What do you mean by arthropod appendages?
Arthropod appendages refer to the jointed legs, antennae, mouthparts, and other body parts of arthropods, such as insects, crustaceans, arachnids, and centipedes. These appendages are adapted for a variety of functions, such as locomotion, sensing the environment, and manipulating food and objects.
Arthropod appendages can be used for a variety of functions, including movement, feeding, defense, and sensory reception. They are equipped with various organs, such as antennae and mouthparts, that allow them to perform a variety of tasks.
Hence, option D is correct.
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Which of the following is NOT a lobe of the cerebrum?
parietal
cerebellum
occipital
frontal
Answer:
Cerebellum
Explanation:
what are body organs?
Answer:
Anything the body needs to function or perform certain functions to maintain i.e being the large and small intestines, the heart, the liver, and your kidneys
Explanation:
NOTICED A DEFINITION NEEDED FIXED ANSWER HOPE HELPED )
Which of the following are decomposers of an aquatic ecosystem?
A: sunlight and salt content
B: bacteria and fungi
C: aquatic plants and algae
D: sharks and eels
Aquatic plants and algae are the decomposers of an aquatic ecosystem.
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Answered by Benjemin
Bacteria and Fungi are decomposers of an aquatic ecosystem. So, the correct option is (B).
What are Decomposers?Decomposers are defined as organisms that break down dead or decaying organisms that undergo decomposition, a process possible only by certain kingdoms such as fungi.
Many decomposers are microscopic organisms, including protozoa and bacteria, while other decomposers are large enough to be seen without a microscope, including invertebrates as well as fungi, sometimes called detritivores, which include earthworms, Includes termites and millipedes.
In an aquatic ecosystem, producers are small plants like pistia which are consumed by primary consumers like aquatic insects, snails etc. where as primary consumers are consumed by secondary consumers like small fishes, frogs. The heron is a tertiary consumer that eats small fish and frogs. Bacteria and fungi are the decomposers in this ecosystem.
Thus, Bacteria and Fungi are decomposers of an aquatic ecosystem. So, the correct option is (B).
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Qué tipos de lípidos forman parte de la membrana celular?
Answer:
Hay tres clases principales de moléculas de lípidos de membrana: fosfolípidos, colesterol y glicolípidos. Las composiciones de lípidos de las monocapas internas y externas son diferentes, lo que refleja las diferentes funciones de las dos caras de una membrana celular.
Explanation:
Some adaptations are helpful in one environment,but would be harmful in other environments .complete the table below with 5 more adaptations.
Adaptations are changes that a species makes in order to better survive in its environment.
What do you mean by environment?
Environment is the natural world and all of the living creatures in it. It includes the air, land, water, plants, and animals. It also includes the physical, chemical, and biological processes that occur in and around these elements. Humans are also part of this environment and have an impact on it.
adaptation helpful environment harmful environment
thick fur cold, arctic environment hot environment
webbed feet swimming in water running on land
sharp claws climbing trees open fields
long neck reaching food in tall trees small, enclosed spaces
long legs savanna environment deep water environment
horns defense and protection in fights tight spaces
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You identify an auxotroph that doesn't grow in normal medium, but does grow in medium supplemented with Q, indicating that it has a defect in one or more enzymes in this pathway. This auxotroph is also able to grow if you supplement the medium with Y. Based on this, which enzymes can you say with certainty is/are disrupted by the mutation
Answer: Enzymes in both Q and Y pathway are disrupted because you have to supplement the medium with those components for the organism to grow.
Explanation:
A microorganism is auxotrophic when it is only able to proliferate in a culture medium if some specific substance has been added to it, which the wild type (prototroph) does not require, because it can synthezise it. The underlying genetics of auxotrophy is the lack of a functional metabolic pathway that generates the substance on which the auxotroph depends. This lack is usually due to a mutation that generates a null allele lacking biological capacity. So, due to a deficiency in an enzyme required for the synthesis of a certain component, the organism requires that component in the culture medium in order to grow.
A metabolic pathway is a set of consecutive chemical reactions catalyzed by enzymes synthesized by the cell, in which the product of one is the substrate of another. In living organisms there are multiple metabolic pathways, responsible for synthesizing and metabolizing compounds (cellular components, regulatory molecules, compounds that serve to store energy), or degrading them to obtain energy. Thus, enzymes catalyze chemical reactions, this means they accelerate the rate of reaction.
A normal medium is one that possesses all the nutrients and compounds necessary for the proper functioning of a normal organism (prototroph). However, if the organism lacks, for example, an enzyme, it will not grow in a normal medium because it does not have the enzyme to make the components. If the organism does not grow in the normal environment, then it has some mutation that causes some enzyme not to be produced. Remember that enzymes are proteins, and all proteins are encoded by DNA, so if there is a mutation in the DNA, in the gene that encodes the enzyme, the enzyme will not be synthesized or will be synthesized but in such a way that it cannot function properly.
If the organisms only grow in medium supplemented with Q and in medium supplemented with Y, then this indicates that it has a defect in one or more enzymes in Q and Y pathway, because the organism cannot produce certain components and they need to be added in the environment. The problem does not provide enough information to know if for each pathway only one enzyme is affected or several, but it is enough to say that enzymes in both Q and Y pathway are disrupted because you have to supplement the medium with those components for the organism to grow.
Which type of environment would tend to reduce genetic variation in a population because of evolution
(1 point)
O an ocean ecosystem that is becoming more acidic
O a tropical rainforest that is being deforested for farmland
O grasslands that are undergoing severe drought
O an old growth forest with trees that are over 1,500 years old
Answer:
The old growth forest with trees that are over 1,500 years old
Explanation:
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Unlike reptiles and amphibians, birds generate their own body heat, what does this mean for birds?
Answer:
Birds can keep themselves warn without any external heat source which is not the case with reptiles and amphibians
Explanation:
Birds are able to generate heat means they are endothermic. They generate heat through various metabolic processes. They have air pockets beneath their feathers to insulate their bodies during cold temperatures. Feathers which are modified reptilian scales help birds to streamline their exterior body and structure feathers in a way that it insulates the body.
Damage to which of the
following structures
would cause you to lose
vision from your left
visual field?
help me pls and i will make a branliest to the one that gets them all right
3 Answer:
Electromagnetic energy is associated with
a. chemical reactions
b. the nuclei of atoms.
c. the motion of electric charges.
d. motion.
4 Answer:
Heat energy is associated with
a. position or shape.
b. holding together the nuclei of atoms.
c. the internal motion of particles of matter.
d. motion.
5 Answer:
Chemical energy is
a. energy that bounds atoms or ions together.
b. contained in the nuclei of atoms.
c. a result of the motion of electric charges.
d. a result of the internal motion of particles of matter.
6 Answer:
Nuclear energy is
a. energy that bonds atoms or ions together.
b. contained in the nuclei of atoms.
c. a result of the motion of electric charges.
d. a result of the internal motion of particles of matter.
7 Answer:
An example of stored chemical energy is
a. gasoline in an automobile.
b. an electric motor.
c. the sun's energy.
d. light.
8 Answer:
An object's kinetic energy varies with its
a. mass and volume.
b. mass and weight.
c. volume and velocity.
d. mass and velocity.
9 Answer:
Which of the following is "not" an example of an object with
potential energy?
a. car battery
b. diver prepared to jump off a diving board
c. wrecking ball
d. moving baseball
10 Answer:
The factor that has the greatest effect on kinetic energy is
a. mass.
b. weight.
c. velocity.
d. density.
Answer: 3 is C
4 is C
5 is A
6 is B
7 is B
8 is B
9 is D
10 is C
Explanation:
Drag each tile to the correct location.
Match each characteristic to the type of protist it describes.
Answer:
shows absuce of cell wall though chloroplasts may be present -plant like
slime mold belongs to this cateroy-fungus like
feeds on decaying matter-fungus like
presence of flagella-fungus like
Explanation:
⚠️Pangea was the last supercontinent on the Earth. However, by the late Triassic period it had begun to separate. By the Jurassic, Pangea had split into the northern continent of Laurasia, and the southern continent of Gondwana, separated by a narrow ocean called the Tethys Sea. Which statement below best describes what likely happened here?
Which type of weather is usually associated with a cumulus cloud? Please help me
Answer:
Fair
Explanation:
I agree with your answer.
Two of the main drivers of genetic variation are mutations and genetic recombination. During which process can these two
events occur? (1 point)
O meiosis
O fertilization
O binary fission
O mitosis
Genetic mutations and genetic recombination occur during the process of meiosis
What is genetic variation?Genetic variation refers to the changes that occurs in the genes of organism resulting in variation in physical traits between organisms.
Genetic variation occurs mainly due to;
mutations andgenetic recombination.Genetic mutations and genetic recombination occur during the process of meiosis.
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Answer:
Meiosis
Explanation:
I did the Quick Check
6. Use your understanding of the Big Idea to explain which cell below converts the most food into energy and why. Justify your answer
Answer:
The plant cell converts the most food into energy because it contains chloroplasts, which are organelles that are responsible for photosynthesis. Photosynthesis is the process in which plants use light energy from the sun to convert carbon dioxide and water into glucose. This glucose is then used as an energy source for the cell. The other cells do not contain chloroplasts and therefore cannot conduct photosynthesis, so they are not able to convert as much food into energy.
Explanation:
Which of the following is not part of a flower?
a. petal
b. root
C. stamen
d. anther
The correct answer is Option (B) - Root.
It is because roots are the organs of a plant that grows downward into the soil and their primary function is to provide nutrients and take in water through the soil for the faster growth and development of the plant body. Roots are the base of a plant and provide a strong base for the plant above to sustain.
Whereas, Petals, Stamen, and Anther constitute the body of a flower. Petals are the colored parts, and Stamen consists of both Filament and Anther.
Therefore, roots do not bear leaves and are not a part of the body of a flower.
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Which bases are found in In 1953, who developed the model that is shown below?a strand of DNA?
The person that developed the model are James Watson and Francis Crick. The bases are found in In 1953 are: adenine, cytosine, guanine, and thymine.
What is the DNA bases?In 1953, James Watson and Francis Crick developed the model of the structure of DNA, which is shown in the image below. The model, known as the double helix, consists of two strands of DNA that are coiled around each other.
Hence, DNA is made up of four bases: adenine (A), cytosine (C), guanine (G), and thymine (T). These bases pair up with each other in specific ways: A pairs with T, and C pairs with G. The sequence of these bases on a DNA strand carries genetic information, and the specific order of the bases determines the genetic code for an organism.
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