how does the cell membrane work with other organelles
Why is carbon so abundant in living things when oxygen is the most abundant element on Earth?
Answer:
Although oxygen constitutes 21% of the total atmospheric gases utilized by the organisms but carbon is the abundant element of the living organisms.
This happens because a living organism is composed of the smallest structural and functional unit called cell which is formed by the aggregation of the small molecule mostly which contains the carbon.
This is due to the reasons as the carbon element shows two properties called catenation sue to which carbon can form long chains by attaching the same carbon element and tetra-valency where the carbon can attach four different elements.
Thus, carbon is the abundant element of the living organism.
Which of the following is true of minerals?
Answer: Minerals holds the following properties-
They occur naturally.They have a defined chemical composition.They are inorganic.They have a precise internal arrangement of atoms.Minerals are of various types such as silicate minerals, oxide minerals and so on.They are comprised of one or more than one element.They combine with one another to form rocks.the part of the experiment in which the experimental factor has been removed is referred to as the ?
It is advantageous for animals that migrate to store energy in the form of lipids rather than carbohydrates. This is because A) lipids do not form polymers. B) lipids are more dense than carbohydrates. C) carbohydrates do not supply energy to cells. D) lipids weigh less and store more energy (gram for gram) than carbohydrates.
Answer:
D
Explanation:
just cause it is
Explain why a large animal like a humpback whale can feed on such small animals as krill or other plankton and yet still have the energy and mass available to produce such a large biomass.
what effect has breast cancer research had on society
Final answer:
Breast cancer research has led to advancements in early detection, treatment, and awareness. It has improved survival rates, influenced societal attitudes, and addressed healthcare disparities.
Explanation:
Breast cancer research has had a significant impact on society. It has led to advancements in early detection methods, improved treatment options, and increased awareness about the disease. For example, research has contributed to the development of mammography and genetic testing, which help in the early detection of breast cancer. It has also led to the development of targeted therapies, such as Herceptin, that have improved the survival rates of patients with HER2-positive breast cancer (BCA, 2012).
Furthermore, breast cancer research has influenced societal attitudes and behaviors. Awareness campaigns, like the pink ribbon movement, have raised public consciousness about breast cancer and encouraged support, fundraising, and advocacy for the cause. Research has also highlighted the importance of addressing inequalities in access to healthcare, leading to efforts to reduce health disparities and improve the quality of care for all individuals.
Photographs of the surface of Mars reveal the presence of sand dunes that shift over time. These dunes demonstrate the presence of what phenomenon on Mars?
f Magnetic pole reversals
g Winds
h Plate tectonics
j Precipitation
The presence of shifting dunes on Mars is evidence of wind activity on the planet. Martian winds are capable of redistributing surface material and forming dunes, and the photographs of these dunes indicate active wind-driven processes. So the correcct option is g.
Explanation:The shifting dunes on Mars demonstrate the presence of winds on the planet. These winds play a crucial role in redistributing surface material. As described, much of the material stripped from Martian canyons has been deposited into extensive dune fields, primarily at high latitudes.
Mars experiences various wind-related phenomena, such as dust devils, which are responsible for creating patterns on the surface by moving dust and sand. These dust devils and windstorms have enough power to move sand and create dunes, which change shape and position over time. The passage of Martian winds over loose sediments can also result in cross-bedded sandstone formations, as have been interpreted from images taken by the Curiosity rover in Gale Crater, indicating past interactions with liquid water.
In summary, Mars' winds are integral to the planet's surface dynamics, creating and shifting the dunes observed in high-resolution photographs. These winds are an essential factor in understanding the Martian climate, surface erosion, and geological history.
What structure contains the embryo of a plant?
The structure that contains an embryo is present between the endosperm and fruit wall. The structure is called the seed.
What is an embryo?The embryo is the undeveloped offspring indie the womb or the plants inside the seed. In plants, it is the undeveloped plant inside the seed. Each seed contains an embryo.
Each ovule turns into a seed when fertilization takes place. Each seed has an embryo, which is a tiny, developing plant. When the sperm cell fuse with the egg, it forms an embryo. The seed is present between the endosperm and the fruit wall.
The seed is the hard part of the plant. It is preset inside the soil to form offspring.
Thus, between the endosperm and fruit wall is the structure that houses an embryo. The form is referred to as the seed.
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Which of the following is NOT a characteristic of an invasive species? Invasive species
Question 7 options:
have specific needs or requirements to survive.
grow rapidly and compete with other plants or animals.
produce large numbers of seeds/offspring at a young age.
have a native region with a climate similar to the affected invaded area.
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Final answer:
An invasive species is a species that arrives in a habitat it had not previously occupied and establishes a population that spreads autonomously. It has specific needs or requirements to survive, grows rapidly and competes with other plants or animals, and produces large numbers of seeds/offspring at a young age. However, the characteristic that is NOT associated with invasive species is having a native region with a climate similar to the invaded area.
Explanation:
An invasive species is a species that arrives in a habitat it had not previously occupied and establishes a population that spreads autonomously. It has specific needs or requirements to survive, grows rapidly and competes with other plants or animals, and produces large numbers of seeds/offspring at a young age. However, the characteristic that is NOT associated with invasive species is having a native region with a climate similar to the invaded area.
Final answer:
Invasive species are adaptable and not characterized by having specific survival needs. They threaten biodiversity due to rapid growth and competitive advantages, but don't necessarily originate from areas with similar climates to the regions they invade.
Explanation:
The characteristic of an invasive species that is NOT true is that they have specific needs or requirements to survive. Invasive species are typically successful exactly because of their ability to thrive in a variety of conditions and do not have highly specific environmental requirements. These species are adaptable, grow rapidly, and often compete with native plants or animals, often causing conservation problems as they threaten biodiversity in invaded ecosystems. Their successful spread usually depends on their reproductive strategies, such as producing large numbers of seeds or offspring at a young age. Moreover, invasive species do not necessarily come from a native region with a climate similar to the affected invaded area; they often have broad environmental tolerances.
How do I put a picture in???
Identify organisms that are extinct
Which of the molecules below is NOT a subunit for building macromolecules?
a
glucose
b
cellulose
c
glycerol
d
amino acids
Explain how the amount of direct sunlight hitting a location near the equator would be different than a location near to one of the poles
which of the following is not likely to appear on a map
Which description is not a property of a base?
A.) pH lower than 7
B.) Turns litmus paper blue
C.) Bitter taste
D.) Slimy feel
The right option is; A.) pH lower than 7
pH lower than 7, is the description that is not a property of a base.
A base is any solution that has a pH higher than 7. Bases can either be strong (such as lye, ammonia, bleach), or weak (such as baking soda, and toothpaste). The strong bases can be harmful to organisms and can destroy substances. Bases usually have a bitter taste, and a slimy feel (such as in soap). Bases produce a salt and water when they react with water. Also, they change the color of indicators (turns litmus paper to blue, and turns phenolphthalein to pink).
Answer:
the answer is A
Long chains of sugars are ______. Name three
The long chains of sugars are glucose, sucrose, and fructose. These chains are significantly made up of glycosidic bonds. The molecules of glucose construct glycosidic bonds with their own, fructose, and galactose.
What is the long chain called?When numerous molecules of glucose are correspondingly linked together in a long chain, these molecules formed a structure that is known as polysaccharides (many sugars). The link formed between each molecule is known as a glycosidic bond.
The structure of glycogen, galactose, and other components are the long chains of sugar called polysaccharides. They are generally made up of repeating units of single sugar molecules called monosaccharides.
Therefore, the long chains of sugars are glucose, sucrose, and fructose. These chains are significantly made up of glycosidic bonds.
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what happens to the spores when a sporangium splits open.
The sporangium rupture usually involves specialized structures that enhance expulsion of the spores away from the parent gametophyte.
What happens to the spores when sporangia open?
When the sporangia dry out, they break open, releasing the spores into the wind.
What is a sporangium?
A sporangium is a structure in certain plants and other organisms that is charged with making and storing spores.
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In a numbers pyramid, which trophic level usually has the smallest numbers? A. producer B. primary consumer C. decomposers D. tertiary consumer
Answer: It's D
Explanation: I took the test and I got D
O2 is a molecule. oxygen gas Question 1 options: A) True B) False
20 Points!
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Before testing for starch, the leaf is warmed in ethanol. The ethanol turns green. Why is this?
How do the cells of a multicellular organism differ from those of a unicellular organism? Question 3 options: They are all the same. They are specialized. They never replicate.
What distinguishes one element from another
The main factor that distinguishes one element from another is its atomic number.
Each element on the periodic table has a unique atomic number, which corresponds to the number of protons found in the nucleus of an atom of that element.
For example, hydrogen has an atomic number of 1 because it has one proton, while carbon has an atomic number of 6 because it has six protons.
Other properties that help distinguish elements from one another include their atomic mass (the total mass of protons, neutrons, and electrons in an atom), electron configuration (the arrangement of electrons in atomic orbitals), and physical properties such as melting point, boiling point, density, and color.
Thus, it is the atomic number that serves as the primary characteristic distinguishing one element from another.
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(Click the picture)
Can someone please answer number 22? I have an answer, but I don't know if it's correct.
My answer: The process that the thin arrows show is conduction. The heat source warms the bottom of the pot and the warmth goes to the sides of the pot, and then the handle.
the bubbles of gas are only produced while photosynthesis is taking place.
What Two measurements would the student make to calculate the rate of photosynthesis?
The two measurements taken here are the size of the bubbles and their rate of production.
What is photosynthesis?Green plants and certain other creatures convert light energy into chemical energy through a process called photosynthesis. Light energy is gathered and utilized during photosynthesis in green plants to change the water, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules.
It is hard to overstate the role that photosynthesis plays in sustaining life on Earth. There might eventually be little food or other organic materials on Earth if photosynthesis stopped. The majority of life would vanish, and eventually, the atmosphere of Earth would contain almost no gaseous oxygen. Only chemosynthetic bacteria, which can use the chemical energy of certain inorganic substances and are not reliant on the conversion of light energy, would be able to survive in such an environment.
The fossil fuels (coal, oil, and gas) that drive modern society today were created by plants using energy from photosynthesis carried out millions of years ago. Green plants and tiny critters that fed on plants grew more rapidly in the past than they were eaten, and as a result, sedimentation and other geological processes buried their remnants in the Earth's crust. These organic residues were gradually transformed into fossil fuels there, shielded from oxidation.
Therefore, the two measurements taken here are the size of the bubbles and their rate of production.
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until about 200 million years ago , earth 's continents were joined as a single land mass called
Why is it difficult, using the traditional definition of species to classify some bacteria and archaea at the species level?
Trees use narrow tubes to transport water upward. Which property of water allows the water to rise in these narrow tubes?
a.net charge of molecules
b.high boiling point
c.cohesion of molecules
d. high vapor pressure
Answer:
C. Cohesion of molecules
Explanation:
Cohesion is the interaction of molecules of the same substance together. By the force of cohesion if two drops of water come together they form one. Water has high rates of cohesion due to hydrogen bonds.
This phenomenon also called surface tension and is what allows small insects to stand on water.
Cohesion along with adhesion of water to the walls of the narrow tube generate what is called capillarity. This allows liquids to ascend inside the narrow tubes. As long as the cohesion is less than the adhesion, the liquid will rise until both forces are equal.
Answer:
C
Explanation:
Organisms use energy to drive chemical reactions which is ____________. (One word)
ATP
Organisms use energy to drive chemical reactions which is ATP.
Explanation;ATP is the usable form of energy that is used by the cell to drive cellular processes such as transport, growth and development, among other activities by the cell. ATP is produced by cellular respiration which takes place in the mitochondria. During cellular respiration simple sugars are broken down in three phases, glycolysis, Kreb's cycle and electron transport chain, to release ATP molecules, which can be used by the cell or stored for future use.