Answer:
D. Transport of oxygen through a placenta to a fetus.
Explanation:
Zygotes are fertilized egg cell, zygotes aren't produced in the ovaries but ovums or egg cells are produced in the ovaries. So option A is false.
Fertilization is internal not external in human. Option B is wrong.
Production of milk happens in the mammary gland (the breast) not in the reproductive system. Option C is false.
Transport of oxygen through a placenta to a fetus. The placenta is a vascular organ which is implanted in the wall of the uterus (a part of the female reproductive system) and links to the foetus through the umbilical cord.
The goldfish is a pet. In a home it is in a secure taken care of aquarium and will only grow to fit the size of the aquarium it is in.
The answer is probably B. Because a High Biodiversity has different variety of genes and species in a ecosystem.
Answer: overpopulation of predators
Explanation: Overpopulation of predators is the correct option. Predators are the organisms which kill other organism so as to obtain them as food. The organism being killed is called as the prey.
If the population of the predators increase this will lead to the extinction of many species of prey. As it is evident that every organism in the ecosystem has a typical role to play. Therefore, it can be said that role of prey will not be performed and this may lead to disturbance in the ecological balance.
Answer:
No se producen consecuencias si las vitaminas se toman en el rango normal.
Explicación:
La caída del cabello, el malestar gastrointestinal, la fatiga y el daño leve a los nervios son algunas de las consecuencias que se pueden obtener si se toma demasiado selenio. Las vitaminas son esenciales para la salud porque nuestro cuerpo las necesita para crecer y desarrollarse. Si estas vitaminas se usan en un rango normal, causan un buen efecto en el cuerpo, pero si tomamos demasiadas vitaminas, causa toxicidad y conduce a una serie de enfermedades. Entonces, si la concentración de vitaminas está en un rango normal en la leche desnatada, tiene un buen efecto en nuestra salud, de lo contrario, causa un problema.