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SCORPION-xisa [38]
3 years ago
5

The evidence that scientists currently have suggests that life on earth __________.

Biology
1 answer:
vlada-n [284]3 years ago
7 0
Began in the water
first evolved around 3500 million years ago
began as single celled organisms
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In what way is the treaty on plant genetic resources limited ?
SCORPION-xisa [38]

Answer:

The correct answer is option D. "It neglects the loss of habitat".

Explanation:

The main objective of the international treaty on plant genetic resources for food and agriculture is to achieve the conservation and sustainable use of all plant genetic resources and the fair and equitable sharing of the benefits obtained from their use. This treaty is managed by Food and Agriculture Organization of the United Nations and is applied in many countries of the world. One of the limitations of this treaty is that it neglects the loss of habitat, which can also affect the availability of plant genetic resources. The international treaty on plant genetic resources is limited to work on loss of biodiversity and management of genetic resources such as seeds.

5 0
3 years ago
How does a cells surface area change compared to its volume when the cell grows
EastWind [94]

Answer:

As a cell grows bigger, its internal volume enlarges and the cell membrane expands. Unfortunately, the volume increases more rapidly than does the surface area, and so the relative amount of surface area available to pass materials to a unit volume of the cell steadily decreases.

5 0
2 years ago
Do buffalo compete for food with other herbivores? If so, for what food and when?
irakobra [83]

Answer:

Sure grass.  And there is a lot of grass. Compete with wild horses, wild pigs, wild goats, wild "golfer's who are way off the fairway. Wild deer are in the forests, wild goats in the hills so buffalo and horses manage the plains and the back nine.  So much grass there was no competition...with the wild rabbits.  Grass continues to grow.  The buffalo move to greener pastures once they mowed down the other fields.  When there were Millions of them, they were not starving.

Explanation: Got this from somewhere hoping it helps!

5 0
3 years ago
Read 2 more answers
Which does not belong to the skeleton
Nimfa-mama [501]

i have tuh say Veins

4 0
3 years ago
Beyond their role in energy transfer, what other benefit do microorganisms that act as producers provide for ecosystems?
insens350 [35]

Answer:

The microorganisms present metabolic wastes that serve as the primary source of food for other living things.

Bacteria that live free in the soil or in symbiosis with plants are essential to fix nitrogen, both nitrates and ammonia. These bacteria take nitrogen directly from the air, originating compounds that can be incorporated into the composition of the soil or living beings.

This property is restricted only to prokaryotes and is widely distributed among different groups of bacteria and some archaeobacteria. It is a process that consumes a lot of energy that occurs with the mediation of the enzyme nitrogenase, which the rest of the living organisms that cannot do or comply with this process is because they lack said enzyme.

Dunaliella is a genus of microscopic algae of the Chlorophyceae class and of the order Volvocales. All are unicellular, although with very varied morphologies.

Morphologically, its main characteristic is that they lack a rigid polysaccharide cell wall.

The ecology of this genus of green algae is characterized by its high tolerance to salinity, with eukaryotic organisms having greater tolerance to salt. They are euryhaline, adapted to salt concentrations from 50 mM NaCl to almost 5.5 M NaCl.

Explanation:

By nitrogen fixation is meant the combination of molecular nitrogen or dinitrogen with oxygen or hydrogen to give oxides or ammonia that can be incorporated into the biosphere. Molecular nitrogen, which is the majority component of the atmosphere, is inert and not directly usable by most living things. Nitrogen fixation can occur abiotic (without the intervention of living beings) or by the action of microorganisms (biological nitrogen fixation). Fixation in general involves the incorporation into the biosphere of a significant amount of nitrogen, which globally can reach about 250 million tons per year, of which 150 correspond to biological fixation.

6 0
3 years ago
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