Answer:
Depening on the gentotyes the answer will be true
Explanation:
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Answer: I think it is the last answer D
What is the inverse of the statement?
A number that has exactly two distinct factors is prime.
If a number has exactly two distinct factors, then the number is prime.
If a number does not have exactly two distinct factors, then the number is not prime.
If a number is not prime, then the number does not have exactly two distinct factors.
If a number is prime, then the number has exactly two distinct factors.
Answer:
If a number does not have exactly two distinct factors, then the number is not prime.
Explanation:
In an inverse statement, both the hypothesis and conclusion are negated. So, "If A. then B" turns into "If not A, then not B."
If you the conditional is already negated, then you would turn it positive.
Hope it helps! :)
20 POINTS!
Which statement best represents how structure relates to function?
Labrador retrievers can be black, yellow, or chocolate colored.
Tortoises in the wild can live for more than 150 years.
People can develop a tolerance for spicy food over time.
A deer's horizontal pupils help it scan the horizon for predators.
The statement that best represents how structure relates to function is as follows: a deer's horizontal pupils help it scan the horizon for predators (option D).
How does structure of an organism relate with function?A structure is an overall form or organization of organs, tissues, cells etc. in living organisms.
Living organisms are directly dependent on certain structures in their morphology to survive. This is because these structures perform specific functions that determine their survival.
Examples of structures found in living organisms and the function they perform are as follows:
Eyes - sightRadula - feeding in snailsCilia and flagella - for movement and locomotionRoot hairs - for absorptionTherefore, the statement that best represents how structure relates to function is as follows: a deer's horizontal pupils help it scan the horizon for predators.
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The more Jim eats, the less hungry he feels. The correlation that exists between Jim's food intake and his hunger is:
Answer: negative
Explanation: A negative correlation is a relationship between two variables in which an increase in one variable is associated with a decrease in the other.
A biologist might study all of the following except
Multiple choice question.
the motion of planets
ways to protect plants and animals
the diversity of life
ways to improve agriculture
A biologist might study all except the motion of planets
Biologist study about living organisms which include all aspects of plants, animals and microorganisms. The ways to protect plants and animals, the diversity of life and ways to improve agriculture all comes under biology except for the motion of planets.
Astronomy is the study of objects in the universe that includes motion of planets. Kepler’s laws of planetary motion describe in detail about the motion of the planets in our solar system.
Thus, biologist study about the ways to protect plants and animals, the diversity of life and ways to improve agriculture except for the motion of planets.
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What are estuaries what feature allows them to be great spawning grounds for a wide variety of fish and shellfish
MAIN ANS
EXPLANATION
LINK
HASHTAG
Estuaries are partially enclosed water bodies.
Water bodies called estuaries and the marshes that surround them are typically found where rivers and the sea converge.
Unique plant and animal communities that have adapted to brackish water, which is a mixture of fresh water that drains from the land and salty ocean, can be found in estuaries.
Many of the environmental services and features that brackish estuaries provide, such as acting as natural runoff filters and functioning as nursery grounds, are also provided by these freshwater estuaries.
They have clean water and provide a safe growing and protected environment and hence are great spawning grounds for a wide variety of fish and shellfish.
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Challenge: In the process of photosynthesis, plants use carbon dioxide (CO2), water (H2O), and light energy to produce a sugar (C6H12O6) and oxygen (O2). In the process of aerobic respiration, animals and plants release energy from sugar and oxygen and produce carbon dioxide and water. The chemical equations that describe these reactions look like this:
Bio 101
Why are lipids hydrophobic
Answer:
Lipids are a large and diverse class of biological molecules marked by their being hydrophobic, or unable to dissolve in water. The hydrophobic nature of lipids stems from the many nonpolar covalent bonds. Water, on the other hand, has polar covalent bonds and mixes well only with other polar or charged compounds.
If the volume of all water on earth is 1,386,000,000 cubic kilometers What cubic kilometers are accessible surface water
This sphere's volume would be around 2,551,000 [tex]mi^{3}[/tex](10,633,450 [tex]km^{3}[/tex]), and its diameter would be approximately 169.5 miles (272.8 [tex]km[/tex]). Yes, all of this water is fresh water, which we all use on a daily basis, but a large portion of it is underground and inaccessible to humans.
The biggest sphere, which would represent all the water on, in, and above the Earth, would have a volume of around 332,500,000 cubic miles ([tex]mi^{3}[/tex]) (1,386,000,000 cubic kilometers ([tex]km^{3}[/tex]) and a diameter of approximately 860 miles (almost 1,385 kilometers). The oceans contain over 96.5 percent of the planet's total water, covering about 71 percent of its surface. Only 3% of the water that makes up the surface of the globe comes from freshwater sources. This means that the total amount of water on the surface of the world is 1,386,000,000 [tex]km^{3}[/tex]. Fresh water volume is equal to 3% of 1,386,000,000, or 41,580,000 [tex]km^{3}[/tex].
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Consider how lettuce or spinach placed in water becomes firm and crisp. Use what you have learned about cell membranes to explain this observation. Be sure to include homeostasis in your explanation.
Cell membrane is semi-permeable outer covering of an animal cell. Cell membrane allows the transport of substance into and out of the cell. When the spinach and lettuce are placed in water they become firm and crisp due to endo-osmosis of water.
What is a Cell Membrane?A cell membrane is the outermost covering in the animal cell and it is covered by the cell wall in the plant cells. Cell membrane is responsible for the transport of materials into and out of the cell.
Cell membrane is semi-permeable in nature that means it only allows some substances to pass through the membrane and block others. Osmosis and diffusion are the processes through which substance pass. When a cell is placed in water, the concentration of water is low inside the cell as compared to the solution. In this case, water travels from its high concentration to its low concentration into the plant cell and the leaves swell and become crisp.
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Why is hyaline cartilage white and shiny?
Hyaline cartilage is known to be white and shiny because it is made up of mainly collagen fibre in its matrix.
What is a cartilage?A cartilage is a type of connective tissue found in the body that helps to provide support on bony areas where there is a need for flexibility.
There are three different types of cartilage which includes the following:
Hyaline cartilageFibro cartilage andElastic cartilage.The hyaline cartilage is mostly distributed of all the types of cartilages mentioned above. They contain more collagen fibres than elastic fibres. They are found on the following parts of the body that includes the following:
ribsnose,larynx, trachea, andas precursor of bone.When the hyaline cartilage is viewed under a microscope, it appears shinny and white. This is so because it's matrix is made up of abundance of type II collagen fibres.
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In what form is phosphorus mostly commonly found in the environment?
A. Inorganic phosphate
B. Elemental phosphate
C. Calcium phosphate
D. Phosphorus Acid
It is clear that the form in which phosphates mostly occur is the Inorganic phosphate.
What are elements?Elements are the smallest indivisible particles of a substance that is capable of independent existence. Now we know that phosphorus is one of the most abandonment elements on earth because it is part of rocks and many soil formations on the earth.
There are many inorganic elements and compounds that could be found in nature especially in the soil and these are mostly found in rocks as well as the soil.
Thus, we it is clear that the form in which phosphates mostly occur is the Inorganic phosphate.
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Drag each tile to the correct box.
Because of genetic variation, a species of beetle has two different body colors, red and green. This species exists in a grassy environment that’s mostly green. A new species of bird that eats these beetles enters the area. Arrange the steps of natural selection in the correct order.
Green beetles and red beetles exist in the environment.
Green beetles pass on their color trait to future offspring.
Birds that eat the beetles move into the environment.
Red beetles are eaten by birds, but green beetles aren’t eaten.
The entire population of beetles eventually becomes green in color.
This is an example of directional selection. Under the environmental pressure of birds eating beetles, natural selection favors the green phenotype over the red one. The correct order is 1, 3, 4, 2, 5.
What is directional selection?Directional selection is one type of natural selection, and increases the proportion of individuals with an extreme phenotypic trait.
There must be a selective pressure or environmental pressure acting on populations to lead the species to increase the number of individuals expressing that extreme phenotype.
This selection presents more frequently in those cases in which interactions between living organisms and the environment modify in the same direction.
In thee xposed example,
there are beetles of two different body colors, red and green.substaret color is mostly green.the bird is a predator that uses its sight to hunt beetles.The selective environmental pressure is the birds, which prey on beetles.
Red beetles are exposed because their color contrasts with green grass.
On the other hand, green beetles manage to camouflage on the green substrate.
Birds, who use their sight to hunt, can see red beetles better. So they exert more pressure on these individuals.
Green beetles who survive hunting, reproduce and pass their genes to the following generations.
The green phenotype spreads on the population until the whole population becomes green.
According to this sequence of events, the correct order is as follows
1. Green beetles and red beetles exist in the environment.
3. Birds that eat the beetles move into the environment.
4. Red beetles are eaten by birds, but green beetles aren’t eaten.
2. Green beetles pass on their color trait to future offspring.
5. The entire population of beetles eventually becomes green in color.
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Answer:
bro above me is correct
its 1,3,4,2,5 :)
Explanation:
Explain the scale of cells and the technology that helps us observe them.
Cells can vary in size from a few micrometers(μm) to hundreds of micrometers in diameter. Cells cannot be easily seen through normal eyes. Cells can be studied through microscopic techniques.
What are microscopic techniques?Cells are the smallest unit that can survive independently. It is not possible to study the cells through normal eyes. For the proper observation of objects different microscopic techniques are used. These tools help in magnifying the image of cells.
There are mainly three branches of microscopy- optical, electron and scanning probe microscopy. For the study of cells, transmission and scanning microscopy are widely used techniques.
In principle, transmission electron microscopy is similar to the bright-field light microscope. A scanning electron microscope is an electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons.
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How much colder was Tuesday then Saturday? if Tuesday is 55 degrees and Saturday is 60 degree
What is the independent and dependent variable?
What type of limitation that requires cosmologists to use these telescopes
Which field of earth science would be involved in studying the surface features of Jupiter's moons?
The field of Earth science would be involved in studying the surface features of Jupiter's moons is Geomorphology.
What is Geomorphology?Geomorphology, which literally means the study of the shape or form of the Earth, focuses mostly on the topographical characteristics of the planet's surface. It is focused on how landforms are categorized, described, and how they came to be.
The study of landforms and their evolution is known as geomorphology. Both qualitative and quantitative research have traditionally been done on the subject, with the former focusing on the description of landforms and the latter on the forces acting on the Earth's surface to create and alter landforms.
In conclusion, the correct option is Geomorphology.
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Which cell structure would be found in a plant cell but not in an animal cell?
A. Permeable cell membrane
B. Large central vacuole
OC. Membrane-enclosed nucleus
OD. Endoplasmic reticulum
Answer:
B
Explanation:
hope this works for you :)
Atoms with positive or negative charges, such as H+, Cl-, and K+, are called ______. Multiple choice question. electrically neutral neutrons ions radioactive
Answer:
ions
Explanation:
hope this helps you :)
To result in an action potential in the central nervous system, EPSP's must ____ through temporal and spatial summation to ____ threshold voltage.
O add up; exceed
O accelerate; reach
O flow; polarize
O sum; activate
Answer:
accelerate; reach
Explanation:
EPSPs fire to trigger action potentials in the postsynaptic cell, by getting the membrane potential to threshold at the axon hillock true, or initial segment of the axon
synaptic knob can fire several times, as others fire as well, so EPSPs can be summed or added; the whole cell body depolarizes, causing current flow, eventually causing an AP to propagate down the axon if brought to threshold at the axon hillock/initial segment.
-remember, as one synaptic knob firing causes 0.5mV charge, you need much more than one to get to threshold.
T/F: if a knob is closer to the axon hillock, more charge will get to it
EPSPs, as described above, are what happens in efferent neurons, which go to effectors, and in interneurons, which are found in the CNS between afferent and efferent neurons
-we already covered afferent neurons, which cause APs to fire in the membrane next to the receptor (toward the CNS)
A very important concept of succession is facilitation, where the successes of one community type
change the environment gradually so as to not favor their own (or their children's) continued
dominance, but rather favor the success of some new, different community members. Why do you think
organisms would facilitate the success of other organisms when it would be at the expense of their own
success? (10 points)
1
Succession by facilitation is an evolutionary process in which different types of adaptive modifications emerge and they are triggered by the occurrence of genetic features (allele emergence) and environmental conditions.
What is succession by facilitation?In terms of evolution, succession by facilitation refers to the ecological phenomenon in which a disturbed environment can be exploited by a particular pioneer species, which largely depends on their own intrinsic features (genetic background) and the environmental conditions that leads to their emergence in the disturbed area.
This process (succession by facilitation) is triggered by the phenotypes in some individuals which are selected by the environment in order to ensure the evolutionary success of other organisms.
In conclusion, succession by facilitation is an evolutionary process in which different types of adaptive modifications emerge and they are triggered by the occurrence of genetic features (allele emergence) and environmental conditions.
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hi can you help me with question
Answer:
Look at this....................It should help you
Researchers collected data about the heart rates of
humans aged 5 to 90 years. They represented the data in a
graph.
Which statement is the best explanation of the pattern in the data?
A. The data show that increasing age causes an increase in heart
rate
8. The data show neither correlation nor cause between age and heart rate
C. The data show a correlation between age and l
D. The data show cause but not correlation between age and heart
rate
Answerحبيبي والله انا نخبة معرفش يعني بس لو تبا الحل اسأل مس سيمة
جاوب السوال واضح
Which type of anthropologist would most likely study living savanna baboons
in their natural habitat?
O Primatologists
O Forensic anthropologists
O Archaeologists
O Cultural anthropologists
O None of the answers are correct
Answer:
Primatologists
Explanation:
Primatologists are scientists who study primates, such as gorillas, orangutans, chimpanzees, and lemurs. The other anthropologists: forensic anthropologists, archaeologists, and cultural anthropologists study mostly humans, not non-human primates.
The moon's orbit is described in
what way?
A. completely straight
B. slightly tilted
C. very tilted
D. almost vertical
The moon's orbit is slighted tilted due to the gravitational pull of the sun. Thus, option B is correct.
What is an orbit?An orbit is referred as the tilted or curved path that any celestial body follows. This path is usually elliptical. The gravitational pull of the sun is also important in determining the orbit of the celestial bodies.
Moon takes revolution around the sun in a slightly tilted orbit. This tilted path is important for the occurrence of solar and lunar eclipse on earth. This tilt is important for regulation of climate and seasons on earth.
Thus, an orbit gives an orientation to the moon and also impacts the climate on earth.
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Explain how ecological pyramids help analyze energy flows through trophy’s levels
Explanation:
Ecological pyramids help analyze energy flow through trophic levels by showing the amount of energy available at each trophic level. Primary producers make up the first trophic level while various consumers occupy the other levels. Only a small portion (on average 10%) of energy stored in any trophic level is available to organisms at the next level.
What is used to help model chemical bond formations?
Answer: Shared-electron (covalent) model
Explanation:
Lewis in 1916, and it remains the most widely-used model of chemical bonding. It is founded on the idea that a pair of electrons shared between two atoms can create a mutual attraction, and thus a chemical bond.
The secretion of Liver
The liver is a vital organ as it secretes one of the most important enzyme- Bile.
Bile aids in digestion by breaking down fats in the small intestine and carrying waste away, making specific proteins for blood plasma. Cholesterol and unique proteins are produced to assist the body in transporting fats. The liver's special ability to produce bile is essential to the organism's existence. Recent advances in the understanding of the mechanism underlying bile production have laid the groundwork for improved diagnosis and management of cholestatic diseases.
Hepatocytes produce bile, an intricate aqueous secretion that is altered distally by absorptive and secretory transport systems in the bile duct epithelium. After that, bile either travels directly to the intestinal lumen or is concentrated in the gallbladder. A number of endogenous solid elements, such as bile salts, bilirubin phospholipid, cholesterol, amino acids, steroids, enzymes, porphyrins, vitamins, and heavy metals, as well as exogenous medicines, xenobiotics, and environmental pollutants, are dissolved in bile's approximately 95% water content.
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What is the Lymphatic system?
The lymphatic system, or lymphoid system, is an organ system in vertebrates that is part of the immune system, and complementary to the circulatory system. It consists of a large network of lymphatic vessels, lymph nodes, lymphatic or lymphoid organs, and lymphoid tissues. The vessels carry a clear fluid called lymph (the Latin word lympha refers to the deity of fresh water, "Lympha") back towards the heart, for re-circulation.
Unlike the circulatory system that is a closed system, the lymphatic system is open. The human circulatory system processes an average of 20 litres of blood per day through capillary filtration, which removes plasma from the blood. Roughly 17 litres of the filtered blood is reabsorbed directly into the blood vessels, while the remaining three litres are left in the interstitial fluid. One of the main functions of the lymphatic system is to provide an accessory return route to the blood for the surplus three litres.
The other main function is that of immune defense. Lymph is very similar to blood plasma, in that it contains waste products and cellular debris, together with bacteria and proteins. The cells of the lymph are mostly lymphocytes. Associated lymphoid organs are composed of lymphoid tissue, and are the sites either of lymphocyte production or of lymphocyte activation. These include the lymph nodes (where the highest lymphocyte concentration is found), the spleen, the thymus, and the tonsils. Lymphocytes are initially generated in the bone marrow. The lymphoid organs also contain other types of cells such as stromal cells for support. Lymphoid tissue is also associated with mucosas such as mucosa-associated lymphoid tissue (MALT).
Source : Wikipedia