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nordsb [41]
3 years ago
9

Question 1 of 10

Biology
1 answer:
Aneli [31]3 years ago
3 0

Answer:Option A

Explanation: The snail breaths in the O2 which will then exhale CO2, therefore the plant will take that and process the CO2 back into O2.

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A group of organisms that can reproduce to produce fertile offspring (babies that can reproduce).
Anit [1.1K]

Answer:

Población  

Explanation:

Puesto que no se especifica que individuos realizan la acción podemos deducir que habla de los seres en general, así pues , de todas las definiciones creo que la población es la más acertada.

3 0
2 years ago
Many years of evolution is most likely to produce
Kamila [148]
D) differences between species and their ancestors

This is because of the adaptive mechanism and mutations the organisms have to respond to. <span>Adaptation processes occur to help species survive and thrive in the ecological balance of life. Structural adaptations are physical features of an organism that adapted through time. An example of this are the bills of a bird and the fur of bears that they generally need for their survival; birds for hunting, and bears to protect them from low climate areas.</span>
4 0
3 years ago
Why are enzymes considered catalysts
Margarita [4]

Answer:

enzymes are organic catalyst, the speed up the rate of biochemical processes

Explanation:

enzymes are protein in nature

enzymes are not consumed during the biochemical reaction

enzymes are specific in action

they require optimal temperature for their action.

5 0
3 years ago
If a cell has 8 chromosomes at the beginning of mitosis, how many
Akimi4 [234]

Answer:

46

Explanation:

5 0
3 years ago
A star is not considered born until the process of nuclear fusion
jonny [76]
Star is a brilliantly glowing sphere of hot gas whose energyis produced by an internalnuclear fusion process. Stars are contained in galaxies. A galaxy contains not only stars, but clouds of gas and dust. These clouds are callednebulae, and it is in a nebula where stars are born. In the nebula is hydrogen gas which is pulled together by gravityand starts to spin faster. Over millions of years, more hydrogen gas is pulled into the spinning cloud. The collisions which occur between the hydrogen atoms starts to heat the gas in the cloud. Once the temperature reaches 15,000,000 degrees Celsius, nuclear fusion takes place in the center, or core, of the cloud. The tremendous heat given off by the nuclear fusion process causes the gas to glow creating a protostar. This is the first step in the evolution of a star. The glowing protostar continues to accumulate mass. The amount of mass it can accumulate is determined by the amount ofmatter available in the nebula. Once its mass is stabilized, the star is known as a main sequence star. The new star will continue to glow for millions or even billions of years. As it glows, hydrogen is converted into helium in the core by nuclear fusion. The core starts to become unstable and it starts to contract. The outer shell of the star, which is still mostly hydrogen, starts to expand. As it expands, it cools and starts to glow red. The star has now reached the red giant phase. It is red because it is cooler than the protostar phase and it is a giant because the outer shell has expanded outward. All stars evolve the same way up to the red giant phase. The amount of mass a star has determines which of the following life cycle paths the star will take.
4 0
4 years ago
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