The answer is passive transport does not require energy and moves materials from areas of relatively higher to lower concentration.
Passive transport is a movement of ions and other atomic or molecular substances across cell membranes without need of energy input. Unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.
The passive transport does not need energy and transport materials from areas of relatively higher to lower concentration. Thus, the correct option is C.
What is passive transport?Passive transport is defined as a movement of ions and other atomic or molecular substances across cell membranes without energy input. Passive transport based on the second law of thermodynamics.
Unlike active transport, it does not need an input of cellular energy because it is instead driven by the tendency of the system in the cell to grow in entropy.
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How does global climate change most directly impact marine life?
Decreased ability of marine reptiles to lay eggs
Decreased habitat for polar marine animals
Increased marine mammal oxygen consumption
Increased reproduction of marine migratory birds
Answer: Decreased habitat for polar marine animals
Explanation:
Global climate change is a worldwide concern this is occurring due to global warming. The global warming is directly relating to the melting of the ice of the glaciers in the polar regions. This can be directly related to the loss of habitat, change in temperature, and severe change in the weather conditions. Marine mammals such as seals, polar bears, walruses may suffer for habitat loss in future due to the global climate change.
Global climate change impacts marine life by causing a decreased habitat for polar marine animals, as a result of warming oceans and the melting of polar ice caps. It also leads to ocean acidification and deoxygenation, affecting species' health and survival.
Global climate change most directly impacts marine life by leading to a decreased habitat for polar marine animals. The warming of the oceans and the melting of polar ice caps reduce sea ice coverage, which is crucial for the survival of species like polar bears, who rely on them to hunt seals. The loss of ice also affects numerous other species adapted to arctic conditions. Additionally, a rise in sea levels due to glacial melt and the expansion of warmer water can inundate coastal habitats, leading to a reduction in habitat size and potentially causing some islands to disappear entirely. This habitat loss has significant effects on marine life and can contribute to declines in population numbers for certain species.
Furthermore, climate changes impact marine ecosystems through ocean acidification and deoxygenation, which threaten the health and reproduction of marine species. Marine organisms have evolved in a relatively stable environment, which means they are particularly vulnerable to these rapid environmental changes. The shifting climate can cause species to adjust their ranges, reduce biodiversity, and disrupt critical interactions within the marine ecosystem.
Darwin collected an studied many specimens to understand natural selection on the Galapagos islands. which organisms did he study while he was there
He chose to study birds, plants, and animals. Mostly 2 types of Finches.
Answer:
C and D or it might just be C
Explanation:
Which type of melanin is produced by the version of the MC1R gene most prevalent among people of African ancestry?
The MC1R gene gives directions for producing a protein known as the melanocortin 1 receptor. This receptor performs an essential function in normal pigmentation. The receptor is mainly situated on the melanocytes surface that are unique cells, which generate a pigment known as melanin.
Melanin is generated by the melanocytes located in the basal layer of the epidermis. The MC1R monitors the production of both pheomelanin and eumelanin.
The MC1R gene most prevalent among people of African ancestry produces eumelanin, a type of melanin. This melanin is responsible for their darker skin pigmentation, especially with UV exposure which stimulates melanocyte's production of more melanin.
Explanation:The type of melanin produced by the version of the MC1R gene most prevalent among people of African ancestry is eumelanin. Melanin occurs in two forms: eumelanin which is black or brown and pheomelanin which provides a red color. People of African ancestry produce more melanin, specifically eumelanin, which provides a darker pigmentation. The MC1R gene plays an essential role in the synthesis of melanosomes, causing skin pigmentation.
For instance, when skin is exposed to the Ultraviolet (UV) rays from the sun, the UV rays stimulate keratinocytes to secrete chemicals which in turn stimulate melanocytes. The melanocytes increase the production of melanin which results in the darkening of the skin, also known as sun tan.
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Population growth is: evenly distributed around the world increasing faster in some countries than in others decreasing worldwide not a cause for concern
the negative population growth is mainly due to a very low birth rate (there are around 8 births per 1,000 Japanese women) and an even lower rate of immigration to the country. Like many highly industrialized countries, Japan's older population is growing at a higher rate than other age groups in the country.
Answer:
increasing faster in some countries than in others.
Name three things atmosphere dose for us
1.) it provides oxygen for humans and carbon dioxide for plants
2.) it keeps the earth warmer than it would be without the atmosphere
3.) it protects us from radiation and meteoriods
if this is helpful please click on the thanks button dear friend!
Have a great day!
Answer:
protects us from radiation, keeps earths gasses on earth, keeps the earth pressurized
Explanation:
you misspelled does, "dose" is the amount of something taken in like medicine .
Best examples for biodiversity
Answers:
Biodiversity, is the diversity of life. Usually within a certain environment, within a certain time frame.
There is diversity on the genetic level within populations, diversity within ecosystems among the species that inhabit them, and even diversity among ecosystems.
Another example might be the diversity of landscape, moisture, nutrients, sunlight, soil and vegetation development in certain areas of the world which will support the more diverse set of species.
Biodiversity refers to the number and variety of organisms found within a specified geographic region. Prime examples include tropical rainforests, coral reefs, grassland ecosystems, and even our own backyards.
Explanation:Biodiversity is a term used to describe the enormous variety of life on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem. For example, the tropical rainforests such as the Amazon, are known for being the most biodiverse regions on Earth, hosting a vast array of different species. Coral reefs like the Great Barrier Reef, are also exceptional examples of biodiversity. They host a multitude of different species, each with a unique role in the ecosystem. Another example of significant biodiversity would be grassland ecosystems such as the African Savannah, which support a wide variety of different animal species, from herbivores like zebras and gazelles, to top predators like lions and hyenas. Even in and around your own home– a urban area or a rural countryside, you may observe a high degree of biodiversity among plants, insects and birds.
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trash is unsanitary and can attract pests it is important that trash is taken out to the dumpster
Trash is unsanitary and can attract pests it is important that trash is taken out to the dumpster otherwise it can cause serious infection in the individuals of a society.
Garbage pollution is the main reason for various bacterial diseases. Gastrointestinal, stomach pain, vomiting and diarrhea, cholera, typhoid, malaria skin diseases and respiratory allergies are the diseases which are caused by the garbage.
The smoke from the burning garbage not only poisons the air, it also increases the spread of diseases. Recent research has provided information about emission of toxic gases like carbon dioxide and carbon monoxide due to the burning of waste.
This assignment is a creative writing assignment on the different organelles found in either the plant cell OR the animal cell. You are going to imagine you are the nucleus of a plant or animal cell and have been asked to mentor an organelle that is new to the cell. You will take your mentee on a tour of the cell, describing the major parts of the cell and their functions. You may present your tour in a variety of ways; just be sure it demonstrates a complete understanding of the organelles, their functions, and how they work together to support the cell. You may present your tour in one of the following ways: A written dialogue, from your perspective as the nucleus, explaining the parts of the cell to your mentee. A presentation including images and written descriptions of each organelle. A drawing of a cell accompanied by written descriptions. Another creative way, approved by your instructor before you begin. Your tour should include: A description of the type of cell (plant or animal) being toured and the type of organelle (your mentee/audience) being taken on the tour. Descriptions, drawn or written, of the structure and location of each organelle in the cell. Written descriptions, in your own words, of each organelle’s function and interaction with the rest of the cell.
Major parts of the animal cell:
Nucleus- controls the cell's activities and contains all the genetic material
Nucleolus- is involved in the synthesis of ribosomal RNA. It is a dark body inside the nucleus
Nuclear membrane- keeps DNA inside the nucleus but allows mRNA and proteins through. It is a double membrane with large pores
Golgi Complex- store and package cellular secretions for export out of the cell (usually through the use of vacuoles). Salivary, oil, and digestive glands have very active golgi bodies.
Rough Endoplasmic Reticulum-is a series of long canals running throughout the cell with ribosomes attached. It transports proteins to the golgi bodies for packaging.
Smooth Endoplasmic Reticulum- is a series of long canals running throughout the cell. It detoxifies the cell and converts foodstuffs.
Centrioles- anchor spindle fibers during cell division. They are composed of microtubules and are only found in animal cells.
Mitochondria- produce most of the cell's energy. They are composed of two membranes (an outer and a folded inner membrane) and are common in muscle cells
Ribosomes and Free Ribosomes- assemble proteins from RNA codes. They are found free-floating in the cytoplasm throughout the cell or attached to the endoplasmic reticulum
Lysosomes-digest and remove worn out cell organelles. In essence, they are vacuoles filled with digestive enzymes.
As the nucleus of an animal cell, I am thrilled to mentor a new organelle joining our cell community. Our cell type is specialized for various functions within the animal body.
Let's embark on a fascinating tour of our animal cell and explore the major parts and their functions!
Nucleus: I am the control center of the cell. My primary job is to store genetic information in the form of DNA and govern all cellular activities. I also coordinate the replication and transcription of DNA to maintain the cell's functions.
Cell Membrane: Look around, and you'll see the cell membrane surrounding us. It's like a security gate, controlling what goes in and out of the cell. It's crucial for maintaining cell integrity and communication with the outside environment.
Cytoplasm: This gel-like substance fills the cell, supporting various organelles and providing a medium for chemical reactions to occur. It's where many metabolic processes take place.
Mitochondria: Over there, those bean-shaped structures are the mitochondria. They are the powerhouses of the cell, responsible for producing ATP, the cell's energy currency, through cellular respiration.
Endoplasmic Reticulum: A network of membranes makes up the ER. There are two varieties: rough and smooth. The smooth ER aids in lipid metabolism and detoxification, whereas the rough ER contributes to protein synthesis.
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Jill has a beaker. In this beaker there are two layers. The phone top layer is transparent with a yellow tint to it, and the bottom layer is transparent and clear. Jill decides that the bottom layer is probably water. What is the top layer
In the given case, most probably the top layer is of oil.
As oil is not soluble in water, it will float on the top of the water surface, in the given case it is the beaker. The oil will always float on top of the water, as it is less dense in comparison to water. The water and oil do not mix as the molecules of water are more fascinated with each other than in comparison to the molecules of oil.
As water is polar and oil is nonpolar, their molecules are not attracted to each other.
Which has the greater momentum, a car traveling at 8 m/s or an identical car traveling at 5 m/s?
The car traveling 8 m/s. Good luck.
which example is given to the type of scientific concept
he's right one it but the order might change
Wich best describes somatic mutations?
A)They are usually passed to offspring.
B)They can cause different kind of cancers.
C) They always result from point mutations.
D)They only occur in reproductive cells
Answer:
The correct answer will be B.(Can cause cancers)
Explanation:
Somatic mutations are mutations present or found in the somatic cells or non-germ-line cells.
since these mutations are present in the somatic cells and not in the germ cells so they cannot be passed on to the progeny.
But these mutations in the somatic cells can cause tumor which can lead to cancer. This happens if the gene causing cancer for e.g- Proto-oncogene or tumor suppressor gene is involved in cell division is mutated. So, the mutated gene is passed on to the daughter cells during cell division and shows uncontrolled differentiation of cells causing cancer.
Thus, option B is correct.
which organelle in the plant will mostly likely the absorbed herbicide waste
Vacuole.
Hope this helps!
describe how irrigation on farms influences natural sources of water and the ecosystems they support
Hello Suki00
The answer to your question would be that there will be water shortages if too much water is removed from the ecosystem.
:)
Answer:
I belive the correct answer is cuticles
Explanation:
i think this is the answer because the definition is the waxy, water-repellent layer found on the outer covering of plants that prevents injury and water loss
Why is the synapse important
synapse are the communication between nerve cells , it helps one neuron to talk to the next neuron creating a continuous impulse
A grass starts with 30,000 MJ of energy. How much energy would a cheetah acquire after it ate a zebra that consumed the grass
The answer is 300 joules of energy.
An energy pyramid is a presentation of the trophic levels in an ecosystem. Energy from the sun is transferred through the ecosystem by passing through various trophic levels. Roughly 10% of the energy is transferred from one trophic level to the next, thus preventing a large number of trophic levels.
Answer:
300 KJ
Explanation:
Edge 2020
PLEASE HELP! Imagine you are a doctor in a maternity ward. During your last shift, 20 babies were born. 10 had blue eyes, 10 had brown eyes. 15 had round heads, and 5 had pointed heads. Given the phenotypes, what are the possible genotypes for these babies?
is the definition of a straight angle seen below reversible? if yes, write it as a true biconditional.
A straight angle is an angle that measures 180°.
PLEASE HELP
Yes, the definition of a straight angle is reversible. A straight angle is an angle that measures 180°.
Explanation:Yes, the definition of a straight angle is reversible. A straight angle is an angle that measures 180°.
A true biconditional statement for this definition would be:
A figure is a straight angle if and only if it measures 180°.
True or false the greater the mass the greater the gravitational pull
The question that you have asked is false
Photosynthesis converts light energy to chemical energy. Which molecules are the end product of this transformation of energy in this reaction? ADP and NADPH ADP and NADP+ ATP and NADPH ATP and NADP+
The answer is ATP and NADPH (c)
ATP and NADPH are the end products of photosynthesis, storing the energy produced by light-dependent reactions.
Explanation:In photosynthesis, the end products of the transformation of light energy into chemical energy are ATP and NADPH. These molecules store the energy produced by the light-dependent reactions and are then used in the light-independent reactions to build sugar molecules. ATP and NADPH are forms of chemical energy that play a crucial role in photosynthesis.
This drawing shows the internal anatomy of a sponge. What does the arrow in the middle represent?
A) the direction of the sponges travel through the water
B) the flow of water through the body of a sponge
C) the path sperm take to fertilize the egg of a sponge
D) the path food takes through the digestive system of a sponge
Answer:
The correct answer would be B) the flow of water through the body of a sponge.
Sponges are multi-cellular organisms which are devoid of organ systems like digestive system, nervous system, circulatory system et cetera.
They have a unique feeding system in which they keep constant water flow through their bodies. They obtain food and oxygen and remove waste through this water movement.
The movement of water throughout the sponge is unidirectional in nature. It enters the sponge body through ostia and exit from the osculum.
As the water is pumped out, the cells present in the walls filter out the food present in the water.
Answer:
Answer:
The correct answer would be B) the flow of water through the body of a sponge.
Sponges are multi-cellular organisms which are devoid of organ systems like digestive system, nervous system, circulatory system et cetera.
They have a unique feeding system in which they keep constant water flow through their bodies. They obtain food and oxygen and remove waste through this water movement.
The movement of water throughout the sponge is unidirectional in nature. It enters the sponge body through ostia and exit from the osculum.
As the water is pumped out, the cells present in the walls filter out the food present in the water.
Explanation:
During the process of protein synthesis, each tRNA carries one
Answer:
(tRNA) molecules carry amino acids to the ribosomes during protein synthesis.
Explanation:
Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein synthesis.
Answer:
amino acid.
Explanation:
During the process of protein synthesis, each tRNA carries one amino acid.
a freshwater paracemin is placed in salt water. which of the following events is most likely to occue
C The salt Would dry out the cell
a section of dna that contains heredity information
What should you do to prevent a microscope from falling?
Practices to protect microscope from falling:
Don't place it on edge of of shelves.Don't lean on it with force.Don't move it too much while focusing.Don't set its parts force fully.Two years of dry weather are followed by two wet years, causing the grass population to rise. How will the increase in grass affect the animal populations?
Final answer:
An increase in grass population after wet years positively affects herbivores by providing more food, which may increase net primary productivity and benefit the entire ecosystem. The exact impact on animal populations will depend on various environmental factors, including potential disturbances.
Explanation:
When the grass population increases after two wet years, this abundance of food is likely to positively affect animal populations, specifically herbivores. Herbivores that had previously inhabited the area or similar species may return to take advantage of the increased food supply. This, in turn, can increase the net primary productivity, as a thriving grass population supports a chain of consumers, eventually affecting the entire ecosystem. Predators may also benefit indirectly from the increase in herbivore populations. As the herbivores feed on the grass, they convert the energy from the plants into biomass that fuels the growth of carnivorous species.
However, the exact impact on animal populations can vary and may depend on other factors such as availability of water sources, presence of predators, and the potential for overgrazing. If the conditions remain favorable, the grasslands can support a diverse and flourishing community of organisms, contributing to greater biodiversity. On the other hand, disturbances like fires may lead to a decrease in habitat complexity and a corresponding decline in mammal diversity, as described by Bond and Archibald (2003).
Why can oxygen gas, and carbon dioxide gas, CO2 , move through the cell membrane?
Because Nonpolar and small polar molecules can pass through the cell membrane, so they diffuse across it in response to concentration gradients. Carbon dioxide and oxygen are two special molecules that undergo this simple diffusion which goes through the membrane.
number 4 for the explain your reasoning part please help 30 points!!
What is the general structure of an amino acid?
Carbon. Good luck!!!!!
Final answer:
The general structure of an amino acid includes an alpha carbon with four different components attached: an amino group, a carboxyl group, a hydrogen atom, and a variable R group, which defines the type of amino acid.
Explanation:
The general structure of an amino acid involves several key components around the central alpha (α) carbon: an amino group (-NH₂), which under physiological pH conditions usually becomes ionized to -NH₃⁺; a carboxyl group (-COOH), which ionizes to -COO⁻; a single hydrogen atom; and a distinctive side chain known as the R group. This R group is what makes each of the 20 standard amino acids unique, affecting their chemical properties such as size, polarity, and pH. These properties, in turn, play a critical role in determining the protein's final structure and function.
2) Which biome has the most constant conditions over the course of the year? EXPLAIN your answer!
The most constant temperature is found in tropical rainforest.
Tropical rainforests are found near the equator and have temperatures between 20°C and 25°C year-round. There is no dry season in tropical rainforests, all months have an average precipitation and receive about 250 cm of rainfall per year. Tropical forests are classified by the amount of rainfall received each year.