ecology-The scientific study of interactions among organisms and between organisms and their environment, or surroundings.
biosphere-Contains the combined portions of the planet in which all of life exists, including land, water, and air, or atmosphere.
species-A group of organisms so similar to one another that they can breed and produce fertile offspring.
populations-Groups of individuals that belong to the same species and live in the same area.
communities-Assemblages or different populations that live together in a defined area.
ecosystems-Assemblages or different populations that live together in a defined area.
biome-Assemblages or different populations that live together in a defined area.
atotrophes-Only plants, some algae, and certain bacteria that can capture energy from sunlight or chemicals and use that energy to produce food
producers-Those that can capture energy from sunlight and those that capture chemical energy.
Photosynthesis-Producers
Those that can capture energy from sunlight and those that capture chemical energy.
Photosynthesis -Autotrophs use light energy to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches.
Chemosythesis-When organisms use chemical energy to produce carbohydrates.
Heterotrophs-Organisms that rely on other organisms for their energy and food supply
Consumers-A.K.A. Heterotrophs
Herbivores-Heterotrophs that obtain energy by eating only plants
Carnivores-Eat animals
Omnivores-Eat both plants and animals
Detritovores-Feed on plant and animal remains and other dead matter
Decomposers-Breaks down organic matte
Food chain-A series if steps in which organisms transfer energy by eating and being eaten.
Food web-When the feeding relationships among the various organisms in an ecosystem form a network of complex interactions
Trophic level-Each step in a food chain or food web
Ecological pyramid-A diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web.
Biomass-PLAY
Ecological pyramid
A diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web.
Biomass -The total amount of living tissue within a given trophic level
Biogeochemical cycles-When elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another.
Evaporation-The process by which water changes from liquid form to an atmospheric gas.
Transpiration-The process of which water can also enter the atmosphere by evaporating from the leaves of plants.
Nutrients-PLAY
Transpiration
The process of which water can also enter the atmosphere by evaporating from the leaves of plants.
Nutrients -All the chemical substances that an organism needs to sustain life.
Nitrogen fixation-Such bacteria, which live in the soil and on the roots of plants called legumes, convert nitrogen gas into ammonia.
Denitrification-Nitrogen fixation
Such bacteria, which live in the soil and on the roots of plants called legumes, convert nitrogen gas into ammonia.
Denitrification -The process of which other soil bacteria convert nitrates into nitrogen gas.
The biosphere-All of life on Earth exists in a region known as
Community-Groups of different species that live together in defined area make up a(an)
Food chain-The series of steps in which a large fish eats a small fish that has eaten algae is a
Biomass pyramid-The total mass of living tissue at each trophic level can be shown in a(an)
Biogeochemical cycles-Nutrients move through an ecosystem in
Phosphorus cycle-What biogeochemical cycle does NOT involve a stage where the chemical enters the atmosphere?
Limiting nutrient-When an ecosystem is limited by a single nutrient that either is scarce or cycles very slowly, this substance is called a(an)
i hope this helps on this question and the rest of your homework/quiz
The gene coding for the protein untwists and
unzips.
O RNA nucleotides form complimentary base
pairs with the DNA bases.
Hydrogen bonds and sugar-phosphate bonds
form and the mRNA strand is synthesized.
mRNA peels off the DNA and moves to the
cytoplasm.
RNA nucleotides form complimentary base pairs with DNA bases. Hydrogen and sugar-phosphate bonds form and the mRNA is synthesized.
Explanation:
The process of mRNA formed by DNA is called transcription. The genes coding for the protein is present on DNA as a nitrogenous base or nucleotides.
Transcription takes place inside the nucleus with the assistance of major enzyme RNA polymerase. In transcription 5'to3' single strand of RNA is synthesized which is complementary to the 3'to5' strand of DNA. The sequence of DNA has promoter sites which will be recognized and DNA will unzip to form transcription bubble. Several transcription factors and enzyme will be required to synthesize mRNA.
This mRNA after some modification would become primary transcript and pass on to the cytoplasm where protein synthesis will take place.
Answer:
b and c
Explanation:
i did it
B. Sandblast
C. Slip face
D. Sand dunes
Answer: Loess is the fine grained material that has been transported and deposited by the wind.The answer isA.
Explanation:
Since the wind can carry these types of material (find grained) father than sand, and also higher up, they are generally found very far from their original place of origin.
Loess is no larger than 50 micrometers in size. It is coarse in texture like clay, but finer than a grain of salt.
Answer:
The process in which one bacteria transfers DNA to another is called conjugation.
Explanation:
Conjugation is the process of transferring genetic material from one bacteria to another through direct cell contact. In the process of conjugation one bacteria acts as donor and transfer the DNA to a recipient. There is a specific DNA sequence present in Donor's DNA called fertility factor (F factor). F factor helps in the formation of pillus which is the site of genetic material transfer.