Answer:
The return of blood to the heart is assisted by the action of the skeletal- muscle pump. As muscles move, they squeeze the veins running through them. Veins contain a series of one-way valves, and they are squeezed, blood is pushed through the valves, which then close to prevent backflow.
I believe the correct answer among the choices presented above is option A. The flow that correctly shows how genes are inherited is DNA→ RNA→ protein→ trait. The DNA gets transcripted into RNA which is translated to the proteins which turns into traits.
Answer:
A symbol that indicates the sedimentary rocks (for example, salt rocks).
Explanation:
The sedimentary rocks are formed through time by cycles of evaporation and the consequent deposition of minerals. In the case of salt rocks, for example, they are generated by the accumulation of layers of salt in the seashore through the movement of the sea waves, i.e., by the evaporation of seawater and subsequent accumulation of salt.
Answer:
The relationships that organisms have with one another are an important part of the balance among species within ecosystems. Which type of symbiotic relationship occurs when ecological niches overlap and multiple organisms seek the same resources?
Competition
Explanation:
Competition entails when ecological niche overlaps and many organisms seek for the same resorces hence leads to competition and overcrowding.
