Answer:
Allele frequency can be described as a phenomenon which measure how common an allele is in a particular population. It tells about the genes which are richest in a gene pool and it also shows the genetic diversity in a population. Allele frequency is often expressed in percentages.
Natural selection tends to favour those organisms that are best adapted to live in an environment and which can withstand changes occurring in the ecosystem. If due to some circumstances, a trait becomes less useful to organisms in a population then by natural selection the allele frequency for those alleles will reduce with time. Similarly, the alleles which code for better genes for an environmental change will be increased due to the phenomenon of natural selection.
No, in facilitated diffusion molecules move against their concentration gradient. Facilitated diffusion is diffusion that requires an input on energy; moving against the concentration would require that energy.
The human body requires seven major<span> types of nutrients. Not all nutrients provide energy but are still </span>important<span>, such as water and fiber. Micronutrients are </span>important<span>but required in smaller amounts. Vitamins are essential organic compounds that the human body cannot synthesize.</span>
Answer:
Los fotorreceptores son neuronas especializadas sensibles a la luz, localizadas en la retina externa de los vertebrados. Los conos y bastones son unas de las células mas especializadas y complejas de nuestro cuerpo. Realizan la conversión de la luz en impulsos nerviosos que el cerebro transforma en imágenes.
Explanation:
Answer:
Explanation:
The reactants for cellular respiration are the products of photosynthesis. The products of cellular respiration are the reactants in photosynthesis.
- During photosynthesis, green plants manufacture their food using sunlight to synthesize glucose from water and carbon dioxide.
- The other product of the process is oxygen gas.
- During cellular respiration, the glucose is combined with oxygen to produce energy, carbon dioxide and water.
