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Fantom [35]
4 years ago
9

Which of the following is a density-independent limiting factor? A. earthquake B. disease C. emigration D. parasitism.

Biology
1 answer:
zalisa [80]4 years ago
8 0
Emigration is aEarthquake is a density-independent limiting factor since the reason for an earthquake to happen is because of natural phenomena such as the drifting or the natural tectonic movement of the plates of the continents and islands. In this case, the population has nothing to do with earthquakes
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The second part of the mitotic phase, during which cell division is completed by the physical separation of the cytoplasm compon
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"<span>The second part of the mitotic phase, during which cell division is completed by the physical separation of the cytoplasm components into two daughter cells is called telophase."

Telophase is the last phase of mitosis. The name itself indicates terminal (telo) phase. </span>The chromosomes get to the cell poles and nuclear membranes are formed around each set of chromatids. The actual cell division is called c<span>ytokinesis and it starts at the end of the telophase.</span>
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3 years ago
How are the molecules in photosynthesis and cellular respiration similar?
WARRIOR [948]

The two processes are similar in that they both produce energy, albeit in two different forms. They are different in that photosynthesis assembles the glucose molecule, while cellular respiration takes it apart

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3 years ago
Debido a la baja cantidad de calorías que utilizamos o quemamos en un día de trabajo
Delvig [45]

Answer: Se debe a que el cuerpo lleva a cabo funciones fisiológicas vitales que requieren energía.

Explanation:

Las calorías son unidades de energía aportadas por los alimentos que consumimos a diario. Puntualmente se define la cantidad de calor necesaria para aumentar en 1 grado centígrado a la temperatura de 1 gramo de agua desde 14,5 hasta 15,5. La principal fuente de calorías en los alimentos son los hidratos de carbono, luego le siguen las grasas y proteínas.

<u>Dicha energía hallada en los alimentos, es utilizada por el cuerpo para llevar a cabo distintas funciones fisiológicas vitales e importantes para que el organismo funciones correctamente</u>, como el bombeo de sangre del corazón, funcionamiento de los riñones o el actividad del cerebro, etc. Nos referimos a esto como el metabolismo basal, el cual es el valor mínimo de energía utilizada en reacciones químicas celulares para la supervivencia del organismo. Dicho metabolismo basal depende de diversos factores tales como la edad, peso, sexo, etc. Pero también, las calorías son necesarias para distintas actividades voluntarias como caminar o levantar algún objeto.

<u>Sin embargo, la forma de energía de las calorías de los alimentos es distinta a la forma de energía necesaria para llevar a cabo estas funciones fisiológicas tanto voluntarias como involuntarias.</u> Para ello, la energía de las calorías debe de convertirse a otra forma y esto ocurre comenzando primero con la digestión de los alimentos, donde luego sus nutrientes son absorbidos en el torrente sanguíneo para luego dirigirse a las células. En las mismas, ocurre un proceso llamado respiración celular, en donde se utilizan las calorías de los alimentos para sintetizar ATP (Adenosín Trifosfato), la cual es una molécula que almacena energía utilizable por parte de las células y que eventualmente impulsará y llevará a cabo todos los procesos fisiológicos y metabólicos.

Entonces, en el caso del trabajo de una oficina en el que las personas permanecen sentadas largas horas, sin mucha actividad, <u>igualmente necesitan consumir mas de 2.000 kilocalorías diarias ya que el cuerpo debe obtener esa energía para llevar a cabo las funciones de todos los órganos para mantenerlos vivos.</u>

3 0
2 years ago
On the electromagnetic spectrum,
statuscvo [17]

<span>B. more energy than radio waves and microwaves.</span><span>
Hope this helps!
</span>
6 0
3 years ago
Which event may lead to speciation? Question 3 options: A. a population is divided by the formation of a river valley. two popul
lora16 [44]

A new island is formed from a volcanic eruption is an event that lead to speciation.

<h3>What is speciation?</h3>

Speciation is the evolutionary process in which in populations of organisms come to being or evolve to become distinct species. The biologist Orator F. Cook made some Discovery and term it speciation in 1906when he performed experiment on cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within lineages.

Therefore, A new island is formed from a volcanic eruption is an event that lead to speciation.

Learn more about speciation from the link below.

brainly.com/question/2113835

7 0
2 years ago
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