Because Putting a carrot in salty water will make it shrivel up, as water leaves the carrot's cells to enter the salty water -- a process called osmosis.
Scientists use the light year because nothing can travel fast than light. Therefore, in any given time frame, light will travel farther than any other substance or particle in the universe. For more precise measurements, scientists use astronomical units. One AU is equal to the distance between the earth and the sun. For anything less, scientists usually use kilometers. For extremely large, interstellar distances, light years are very useful. You wouldn’t want to measure the distance between Earth and Proxima Centauri in kilometers or even AU. The lightyear gives a simple, relative measurement.
Answer:
biochemical compound
Explanation:
A biochemical compound is any compound that contains carbon and is found in
living things. They're involved in every process of life, including growth, digestion,
respiration, you name it. There are four classes of biochemical compounds :
carbohydrates, proteins, lipids (fats), and nucleic acids.
Explanation:
a plant body that is not differentiated into stem and leaves and lacks true roots and a vascular system. hence spirogyra called a thallus.
Spirogyra is an example of Green algae , thus it prepare its own food by process of photosynthesis in presence of sunlight and chlorophyll.So, its nutrition type is Autorophic.
Bacteria: Bacteria: Cell walls with peptidoglycan, includes autotrophs and heterotrophs, Prokaryotic cells
Archaea: Includes methanogens and halophiles, Prokaryotic cells, includes autotrophs and heterotrophs.
Eukarya: Includes plants, animals and fungi, eukaryotic cells, includes autotrophs and hetrotrophs.
Explanation:
Bacteria are the unicellular prokaryotes with a distinct feature of cell wall made up of peptidoglycan.
Archaea: They are unicellular and lack a defined nuclei and lives in extreme climate.
Eukarya: multicellular, Eukaryotic, well-defined nucleus, membrane-bound organelle, no cell wall.
