Answer:
Keystone species
Explanation:
Keystone species are such species that had a large effect on the natural environment. Such species are very important species as they play key role in determining and maintaining the the structure of an ecosystem and also decide or fix which type of species will be there in that environment and what will be the number of those species in that particular community. Without these keystone species an ecosystem could completely cease or all species could not work in that same manner all-together. Wolf is one of an important keystone species in the ecosystem.
Answer:
The correct answer is Most DNA binding protein would have strong positive charge .
Explanation:
DNA is the genetic material in most organism. DNA consist of nucleotides that contain a nitrogen base,deoxyribose sugar and phosphate group. The phosphate group is highly reactive and contain negative charge.
Most DNA binding protein such as Helix turn helix, Leucine zipper,Zinc finger Interracts with the negatively charged phosphate group by the positive charge that they contain . This positive charge facilitates their interraction with negatively charged DNA molecule.
They begin to form about 3.8 billion years ago
The property of polarity of the water and cohesion could be the actual responsible for the beading up of water on the surface of leaves.
What is cohesion?
Cohesion, also known as cohesive attraction or cohesive force, is the action or quality of like molecules sticking together and being attracted to one another (from the Latin cohaesi, "cohesion, unity"). The uneven distribution of surrounding electrons that results when molecules are close to one another creates electrical attraction, which can keep a small structure like a water drop in place. This attribute of a substance is caused by the shape and structure of its molecules. Surface tension is made possible by cohesion, resulting in a "solid-like" state that allows for the placement of light or low-density materials.
It turns out that the tendency of water molecules to attract one another, or the tendency of cohesion, is what causes surface tension. The "lowest energy state," or the state in which the atoms in the molecule are utilizing the least amount of energy, is when a water drop takes on its natural form. This condition of water occurs when a water molecule forms a sphere or ball and is encircled by other water molecules on all sides. On Earth, gravity flattens this perfect sphere into the form of a drop that we can perceive.
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<h3><u>Similarity and differences of carbon cycle in the ocean as on land:</u></h3>
- The Carbon Cycle is a biogeochemical cycle by which Carbon circulates around the planet.
- Carbon Cycle just like other cycles compromises of sequence of events that are essential to make earth capable of sustaining life.
- In land carbon is mostly circulated through photosynthesis and stored in living as well as non-living organisms.
- In oceans carbon is absorbed and dissolved into the water and get used by animals and plants.
- Ocean is like a giant sponge that soaks up more carbon than it gives.
- Like on land photosynthesis too occur in oceans and get incorporated into marine and terrestrial organisms as organic matter.