I think the correct answer among the choices listed above is the first option. In an ecosystem without primary consumers, t<span>he populations of producers would increase. This is because nothing will eat the the producers or the plants. The plants will only grow and increase.</span>
Answer:
The correct answer is D. Umbilical cord
Explanation:
The umbilical cord connects the fetus to the placenta and through it exchanges nutritional substances as well as oxygen-rich blood. The umbilical cord is maintained throughout gestation until the moment of birth, when it is cut and leaves a permanent scar, the navel. The umbilical cord is responsible for breathing and feeding the fetus until the moment it is born, so any failure or blockage in the circulation of oxygen and nutrients through the cord can lead to injury or even death of the embryo. It also serves to remove waste and carbon dioxide (CO2).
The correct answer is absolute threshold.
Absolute threshold is a neurobiological term referring to the lowest level of a stimulus that a person is able to detect. The stimulus can either be touch, sound, taste or light.
Regarding taste, the absolute threshold of taste is the lowest concentration of a certain compound which can be detected by the human sense of taste.
Correct answer: Zygomycota
The Zygomycota is also known as conjugation fungi, it includes molds that invade bread. One of the identifying characteristics of Zygomycota is the formation of zygospore during sexual reproduction, it lacks the hyphal cell.
The asexual spore of Zygomycota includes conidia, sporangiospores, and chlamydoconidia etc.
They are found near the plants in the soil and on dead and decaying matter and help to decompose soil and play an important role in the carbon cycle.
