- If a 0.9 % salt solution is isotonic to an animal cell, then a hypertonic solution would be?
Answers
Answer:
If 0.9% NaCl were isotonic to a cell then anything greater than 0.9% would be hypertonic. A hypertonic solution is one which has a greater concentration of dissolved solutes while an isotonic one has a similar concentration of solutes.
Explanation:
If a 0.9 % salt solution is isotonic to an animal cell, then a hypertonic solution would be 1.0%. Thus, the correct option for this question is D.
What is a Hypertonic solution?A hypertonic solution may be defined as a type of solution that significantly has lower osmotic pressure than another solution to which it is compared. If the surrounding solution has a higher solute concentration compared to inside the cell, it represents a hypertonic solution.
According to the context of this question, if a 0.9 % salt solution is isotonic to an animal cell, then anything greater than 0.9% would be hypertonic. So, all the options except for 1.0% are lesser than or equal to 0.9%.
Therefore, if a 0.9 % salt solution is isotonic to an animal cell, then a hypertonic solution would be 1.0%. Thus, the correct option for this question is D.
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Related Questions
What is photosynthesis?
Answers
Answer:
it's a good question well photosynthesis is a process in which plants absorb the sun light and convert it to energy to prepare Thier food.
Photosynthesis is a process by which plants and other organisms, such as algae, convert solar energy into chemical energy and use it to produce organic molecules. Photosynthesis is the main source of energy in the biosphere.
Si una mujer tuviera una masa de 60 kg, ¿cuál sería su masa en la Luna? (la gravedad de la Luna es de 1,67 m / s2)
Answers
Answer: d
Explanation: just did it on edg
Nitrogen and phosphorus are referred to as macronutrients because ________. A. they are larger than other nutrients needed by plants B. they are needed by large organisms C. they are required in large amounts for organisms to survive D. they are needed to manufacture large biomolecules E. their cycles have larger reservoirs than those of micronutrients
Answers
Macronutrients are all substances that provide energy to the metabolism for optimal functioning, nitrogen and phosphorus are required in large amounts for organisms to survive.
What are macronutrients?It refers to those elements that provide energy to the body, these are proteins, carbohydrates and lipids.
Nitrogen and phosphorus, meanwhile, allow the development of metabolic processes, prevent infections and contribute to growth.
Therefore, we can conclude that the body requires a greater amount of macronutrients than micronutrients, nitrogen and phosphorus are required in large amounts for organisms to survive.
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Why are antibiotics unhelpful for treating the common cold?
O A. Bacteria are not killed by antibiotics.
O B. Colds are caused by antibiotics.
O c. Antibiotics cannot treat illnesses.
O D. Colds are caused by viruses.
Answers
Answer:
d cold are caused by viruses
An ecologist in Costa Rica wanted to determine the PGR for the country in 2018, and collected all of the data necessary to calculate the rate. She concluded that there were 34,560 births and 2,310 deaths within their population of 100,000. There were also 478 immigrants and 126 emigrants that year. What was the population growth rate for Costa Rica?
Answers
The population growht rate is 32.602 % per year. Population growth can be calculated as = (births + immigrants) - (deaths + emigrants).
In this case, population growth is equal to = (34,560 births + 478 immigrants) - (2,310 deaths + 126 emigrants) = 32,602 new individuals per year
Total (original) population: 100,000 _____ 100%
32,602 _____ X
In consequence, the population growth rate per year can be estimated by the following equation:
X = (32,602 x 100)/ 100,000 = 32.602 %
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What are 4 facts about Earth's outer layer? Subject: Science 7th grade Plate motion.
Answers
The outer core is the third layer of earth It is mainly made up of the metals iron and nickel
The outer core is responsible for earths magnetic fields
The magnetic field protect the earth from harmful particles that come from the sun
Tại sao sau khi bón phân đạm cho cây ko nên ăn sau khi bón?
Answers
Answer:
PHÂN ĐẠM VÀ NHỮNG CÂU HỎI LIÊN HỆ THỰC TẾ !
- Tại sao không bón phân đạm cho đất chua?
* Giải thích: Đất chua là đất có độ pH<7 (do dư thừa ion H+), đất chua gây ra nhiều bất lợi cho việc giữ gìn và cung cấp thức ăn cho cây, đồng thời làm cho đất ngày càng suy kiệt cả về lý tính, hóa tính và sinh học . Khi bón phân đạm có chứa ion NH4+ ion này sẽ sinh thêm ion H+ theo phương trình NH4+ «NH3 + H+ ,làm tăng độ chua của đất.
- Tại sao không bón vôi và đạm amoni (NH4NO3, NH4Cl)
Comments
Explanation:
What makes a successful Aquarium
Answers
Answer:
Im guessing animal control feeding the animals good glass and thickness also a strong bridge last is a passive shark
Explanation:
Like other living creatures, fish must meet certain basic needs for survival. Water, food and shelter are among the most important requirements:
• Water: Fish not only live in water, but they get oxygen from water. They breathe by taking water into their mouths and forcing it out through gill passages.
• Food: Fish must be able to find enough to eat at various life stages, whether they feed on microorganisms, small fish or larger prey.
• Shelter: Fish need a place to hide from predators and to reproduce. Some fish find shelter among submerged aquatic plants and shoreline vegetation, while others hide among rocks, soft sediments, or blend into clear, open waters.
and filtration
Cellular respiration in plants does not require atmospheric oxygen because
Answers
Answer:
Oxygen produced during light reaction of photosynthesis is partially consumed during cellular respiration by plants and unconsumed oxygen is released in atmosphere. Thus plants produce oxygen in presence of light.
Answer:
it uses the oxygen generated in photosynethesis
Explanation:
Which of the following describes why a glucose transporter is needed to move glucose into the cell?
Glucose is nonpolar and requires ATP to move across the membrane.
Answer A: Glucose is nonpolar and requires A T P to move across the membrane.
A
Glucose molecules are polar and need to move from low concentration to high concentration.
Answer B: Glucose molecules are polar and need to move from low concentration to high concentration.
B
Glucose molecules are charged, and charged molecules are only ever actively transported.
Answer C: Glucose molecules are charged, and charged molecules are only ever actively transported.
C
Answer D: Glucose is large and polar and cannot pass through the phospholipid bilayer.
Answers
A glucose transporter is needed to move glucose into the cell because glucose molecules are polar and need to move from low concentration to high concentration.
What do you mean by Glucose Transporters?Glucose transporters may be defined as proteins that facilitate the transport of glucose across the plasma membrane.
Glucose transporters work with the concentration gradient. This process of moving glucose across the cell membrane is called facilitated diffusion.
Therefore, a glucose transporter is needed to move glucose into the cell because glucose molecules are polar and need to move from low concentration to high concentration.
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Which statement describes the ability of the cell membrane to allow various substance to move through it?
Answers
The cell membrane is selectively permeable.
what is the first layer of hair that is cut by scissors when receiving a hair cut?
Answers
Answer: the guide?
Explanation:
Cuticle is the first layer of hair that is cut by scissors when receiving a hair cut.
What do you mean by cuticle?The cuticle is a layer of clear skin located along the bottom edge of your finger or toe. This area is known as the nail bed. The cuticle function is to protect new nails from bacteria when they grow out from the nail root.
A cuticle is a hydrophobic boundary layer on the outer surface of primary aerial organs. Its presence is a common feature of all vascular and some non-vascular plants.
The cuticle plays an important role in nail health. They provide protection for the tissue that grows new cells to build nails. As you know, your nails are constantly growing, that's why you have to keep them manicured.
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Starch is found in foods such as peas, corn, and potatoes. For the body to receive energy from starch, it is broken down into smaller units. A mutation occurs in the gene that codes for a protein that breaks down starch.In which case will the mutation be harmful?
Answers
This mutation would be harmful for the body because, when not able to break down the starch and use it for energy, the body will begin to have starch buildup and not be able to do anything with it. It would continue to build up and do some serious damage everytime someone who has this mutated gene eats food rich in starch.
Most opportunist species ____.
are non-native
tend to mature slowly after birth
go through irregular and unstable boom-and-bust cycles in their population sizes
are especially vulnerable to extinction
tend to compete well when their population size is near the carrying capacity of their environment
Answers
Most opportunist species go through irregular and unstable boom-and-bust cycles in their population sizes. Please mark BRAINLIEST.
what are three biotic factor that limit the carrying of any habitat?
Answers
Answer:
Amount of food, competition with other species, habitat space
in a eukaryotic cell, where does transcription occur?
Answers
Answer:
transcription occurs in the nucleus, and translation occurs in the cytoplasm.
Explanation:
one anatomical difference between cercopithecoids and hominoids is:
Answers
Answer:
Cercopithecoids have a narrow nose and palate, and smaller brains relative to body size than Hominoids
Which underwater ecosystem is made of calcium carbonate structures?
tide pools
coral reefs
kelp forests
salt marshes
100 points and if correct brainliest <33
Answers
Answer:
coral reefs
Explanation:
Coral is a sea living or aqueous animal.Coral shells are made of solid calcium carbonate.Chemical formula for calcium carbonate is CaCO3Answer:
Coral reefs OR A coral reef
Explanation:
It's function is to provide protection / shelter for different species of fish/water wildlife.It is an ecosystem Which is under water.Corals are marine/ocean invertebrates (without a backbone)help plssssssssssss plsssssssssss
Answers
Answer:
The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations,
Explanation:
can you mark me brainliest
Which of the following situations show a biotic factor operating within an ecosystem? SC.912.L.17.7
A.
The kind of climate in a given region
B.
The concentration of hydrogen gas in the air
C.
The rate of water flow in a body of water
D.
Carnivores that eat other animals
Answers
A biotic factor is a living organism that shapes its environment.
Carnivores that eat other animals is a situation which shows a biotic factor operating within an ecosystem. Thus, the correct option is D.
What are the biotic factors?
A biotic factor in an ecosystem is a living organism which shapes its surrounding environment. In a freshwater ecosystem, the examples of biotic factors might include aquatic plants, fishes, amphibians, and algae population.
An example of biotic factor should consist of living organisms such as the one "Carnivores that eat other animals". In this example, carnivores are the animals which eat other lower animals for their nutrition. Both the organisms are living hence are the biotic factors of an ecosystem.
Biotic factors of an ecosystem depends upon the abiotic factors for their survival such as water, climate, soil, temperature, and atmosphere, etc.
Therefore, the correct option is D.
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Explain how Earth's magnetic field is generated.
Answers
Answer:
The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in the Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.
Answer:
On Earth, flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet
Why do we have high and low tides?
Answers
Answer:
It often accompanies a new moon and when the moon is closest to the Earth. The moon's gravitational pull on the Earth and the Earth's rotational force are the two main factors that cause high and low tides. Tides move around the Earth as bulges in the ocean.
chúng ta cần làm gì để bảo vệ môi trường sống không còn tác nhân đột biến?
Answers
sunlight gives what to the chloroplasts in side leaves
Answers
Answer:
Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. Chloroplasts capture light energy from the sun to produce the free energy stored in ATP and NADPH through a process called photosynthesis.
Regions that have similar climate characteristics can be widely spread apart, but typically have which of the following in common?
A: Varying altitudes and similar precipitation
B: Corresponding latitudes and continental locations
C: Corresponding temperature and wind patterns
D: Similar ocean currents and vegetation
Answers
C: Corresponding temperature and wind patterns are in common.
What are the 3 characteristics of climate?The simplest way to describe climate is to look at average temperature and precipitation over time. Other useful elements for describing climate include the type and the timing of precipitation, amount of sunshine, average wind speeds and directions, number of days above freezing, weather extremes, and local geography.
Climate features also include windiness, humidity, cloud cover, atmospheric pressure, and fogginess. Latitude plays a huge factor in determining climate. Landscape can also help define regional climate. A region's elevation, proximity to the ocean or fresh water, and land-use patterns can all impact climate.
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Transcription is the process by which the
information in a strand of DNA is copied
into a new molecule of messenger RNA.
Which of these are the steps involved in
transcription?
Answers
Answer:
1. initiation
2. elongation
3. termination
how i know a chemical reaction took place
Answers
Answer:
Gas bubbles, precipitation, color change, temperature change, if some light is produced, the volume changes, or taste and or smell changes.
Explanation:
I learned these were the 7 signs of a chemical reaction but some schools and curriculums vary on how many signs of reactions there are. I hope this helped!
List the 5 Factors that influence Climate
Answers
+ elevation/altitude
+ temperature
+ distance from sea
+ latitude
Answer:
Latitude, Altitude, Winds, Distance from the sea, relief
Explanation:
cancer is the result of an improperly regulated cell cycle
Answers
how many chromosomes do human sperm and egg cells have?