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stira [4]
3 years ago
7

Why does the northern hemisphere experience spring in March, while the Southern Hemisphere experiences fall?

Biology
1 answer:
Free_Kalibri [48]3 years ago
7 0
Because the earth is in an angle so the northern hemisphere receives more heat and vice versa
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Select all of the statements that describe the electron transport chain of E. coli. Multiple select question. It has three diffe
deff fn [24]

Answer:

It adjusts to different oxygen levels.

The cytochrome bo branch operates when E coli is growing rapidly with good aeration.

The cytochrome bd branch operates at low oxygen conditions. It is located in the outer membrane.

Explanation:

Electron transport chains of Escherichia coli are composed of different dehydrogenase and terminal reductase which is linked by quinones. It adjusts to different oxygen level because Oxygen is preferred electron acceptor and represses the terminal reductase of anaerobic.

5 0
2 years ago
Which structure connects each kidney to the bladder?<br> Ureter<br> Urethra
Maslowich

Answer:

Two ureters.

These narrow tubes carry urine from the kidneys to the bladder. Muscles in the ureter walls continually tighten and relax forcing urine downward, away from the kidneys. If urine backs up, or is allowed to stand still, a kidney infection can develop.

Explanation:

6 0
3 years ago
Que tipo de aislamiento reproductivo exhibe la mula?
bulgar [2K]

Answer:

<em>Aislamiento postreproductivo: Esterilidad del híbrido</em>

Explanation:

El concepto biológico de <u>especie</u>, en su definición, destaca que los ejemplares de una especie no pueden entrecruzarse con ejemplares de otra especie distinta, o bien, en caso de hacerlo, no hay éxito reproductivo.

Existen distintos mecanismos de aislamiento reproductivo, que son barreras que inhiben o interrumpen el flujo génico entre especies distintas. Se trata de caracteres biológicos propios de cada especie que previenen la reproducción con otras especies.

Estos mecanismos de aislamiento reproductivo pueden ser precigóticos o postcigóticos.  

  1. Pre-copulatorios o pre-cigóticos:
  • Ecológico o por aislamiento de hábitat;
  • Estacional o temporal;
  • Sexual o etológico;
  • Mecánico;
  • Por incompatibilidad de gametas.  

   2. Post-copulatorios o cigóticos:

  • Inviabilidad del híbrido;
  • Esterilidad del híbrido;
  • Híbrido con viabilidad o fertilidad disminuido;
  • Interacciones citoplasmáticas.

La mula es producto de la cruza entre dos especies distintas: una yegua (<em>Equus ferus caballus</em>) y un burro (<em>Equus africanus asinus</em>). Es un ejemplo de la accion de mecanismo poscigótico, en el cual se forma un híbrido viable esteril. Este ejemplar puede nacer crecer y sobrevivir, pero que no pueden producir gametas funcionales, por lo cual no pueden reproducirse.        

4 0
2 years ago
For humans, intelligence scores correlate with the surface area of the ______. group of answer choices
agasfer [191]

For humans, intelligence scores correlate with the surface area of the <u>frontal</u> and <u>parietal cortex</u>.

And this intelligence score is also a function of healthy living

<h3>What is healthcare?</h3>

Healthcare can simply be defined as an organized medical care given to a person, organization or even a community either by a doctor, nurse or any other licensed healthcare professional

However, healthcare-associated Infections, are those infections patients can get during their treatment for another condition due to bacteria, viruses, fungi, and other pathogens.

And for a good reason, the fundamental purpose of healthcare is to enhance healthy living and quality of life by giving quality healthcare services.

So therefore, for humans, intelligence scores correlate with the surface area of the frontal and parietal cortex.

Learn more about healthcare:

brainly.com/question/4784548

#SPJ1

7 0
1 year ago
What are some abiotic factors that might effect some biotic factors
Stels [109]

Answer:    An abiotic factor is a non-living factor that influences and resides in an environment. So, things like weather, temperature, and humidity are considered abiotic factors, while things like predators are considered biotic factors.

Explanation:

7 0
3 years ago
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