Answer:
B. involuntary activities
2 and 3 are too similar to distinguish because they both are saying it's been back up on several different accounts but 3 seems like a more solid answer go with 3
Answer:
Explanation:
•Variation: Organism shows variation within a population, these variation could be body size, facial marks, hair color, number of offspring, etc. Also some features shows little or no variation, for example the number of eyes a vertebrate have, etc
•Inheritance: Certain traits are always passed from parents to their offsprings, these traits are called HERITABLE TRAITS. But traits that are exhibited as a result of an environment are termed weak heritable traits.
•High rate of population growth: When the number of offsprings produced in a year is greater than the resources within an environment, such population will experience high rate of mortality.
•Differential Survival and reproduction: The ability possessed by an individual to struggle for survival within it's environment will give rise to more offspring in the next generation.
Answer:
The cell cycle has three phases that must occur before mitosis, or cell division, happens. These three phases are collectively known as interphase. They are G1, S, and G2. The G stands for gap and the S stands for synthesis.
Explanation:
Carbon dioxide concentrations in soil are higher than in the atmosphere because of respiration of the plants, their roots. Also, CO2 is inhigherr concentration because of the decomposition of organic matter. Decomposition of organic matter produce more CO2 because of increased microbial activity. CO2 concentrations can change as a result of temperature change or different soil structure. Composition of air in soil and atmosphere of CO2 is
<span>Soil Air: 0.25% Atmosphere: 0.04%.</span>