How long does it take for food to pass through the esophagus? Once food has entered the esophagus, it doesn’t just drop right into your stomach. Instead, muscles in the walls of the esophagus move in a wavy way to slowly squeeze the food through the esophagus. This takes about 2 or 3 seconds. Which […]
Which plant is known as Embryophyta?
Which plant is known as Embryophyta? The Embryophyta are informally called land plants because they live primarily in terrestrial habitats, while the related green algae are primarily aquatic….Phylogeny and classification. Liverworts Marchiantiophyta Marchiantiophyta Mosses Bryophyta Bryophyta Hornworts Anthocerotophyta Anthocerotophyta Tracheophyta Do all land plants have cuticles? All land plants have a cuticle. The main function […]
What makes a healthy ecosystem?
What makes a healthy ecosystem? A healthy ecosystem consists of native plant and animal populations interacting in balance with each other and nonliving things (for example, water and rocks). Healthy ecosystems have an energy source, usually the sun. Decomposers break down dead plants and animals, returning vital nutrients to the soil. What animal is most […]
What is relation between current and drift velocity?
What is relation between current and drift velocity? Current is the flow of free charges, such as electrons and ions. Drift velocity vd is the average speed at which these charges move. Current I is proportional to drift velocity vd, as expressed in the relationship I=nqAvd I = nqAv d . Here, I is the […]
What are the two most important factors affecting the credibility of a persuasive speaker?
What are the two most important factors affecting the credibility of a persuasive speaker? A speaker’s credibility is affected by two primary factors-competence and character. 1. Competence refers to how an audience regards a speaker’s intelligence, expertise, and knowledge of the subject. Which of the following is recommended in your textbook as a way to […]
What is inside the Pyramid of Giza?
What is inside the Pyramid of Giza? The pharaoh’s final resting place was usually within a subterranean burial chamber underneath the pyramid. Although the Great Pyramid has subterranean chambers, they were never completed, and Khufu’s sarcophagus rests in the King’s Chamber, where Napoleon is said to have sojourned, deep inside the Great Pyramid. What stone […]
What is the length of a vector?
What type of data is the dependent variable?
What type of data is the dependent variable? Dependent variables are the measured behaviors of participants. They are dependent because they “depend on” what the participants do. The most obvious example is text entry speed, measured, for example, in words per minute. What is the relationship between dependent and independent variables in a hypothesis? A […]
When an object is raised vertically work is done against?
Is the number of cosmic rays passing through the body is the same for every person?
Is the number of cosmic rays passing through the body is the same for every person? The flux of these cosmic particles is approximately 240 per metre squared per second at ground level. Many pass through our bodies every second. In addition, 65 billion neutrinos pass through every square centimeter of our skin every second […]