Do humans have gill slits?

Do humans have gill slits? …and other nonaquatic vertebrates exhibit gill slits even though they never breathe through gills. These slits are found in the embryos of all vertebrates because they share as common ancestors the fish in which these structures first evolved. Human embryos also exhibit by the fourth week of development a well-defined… […]

What are the 6 common properties of electromagnetic radiation?

What are the 6 common properties of electromagnetic radiation? Properties of Electromagnetic Radiation These magnetic and electric waves travel perpendicular to each other and have some characteristics like wavelength, amplitude, and frequency. Some basic properties of Electromagnetic Radiation are given in the points mentioned below. They can travel through empty space. What are the four […]

How do I make an organizational chart in PowerPoint?

How do I make an organizational chart in PowerPoint? Head to the “Insert” tab and then click “SmartArt.” In the Choose a SmartArt Graphic window that opens choose the “Hierarchy” category on the left. On the right, click an organization chart layout, such as “Organization Chart.” When you’re done, click “OK.” What is the best […]

Is heliocentric model correct?

Is heliocentric model correct? The geocentric model states that the Sun and the planets move around the Earth instead of the heliocentric model with the Sun in the center. Obviously the Earth orbits the Sun. Sure, the textbooks all say that the solar system is heliocentric. What is difference between geocentric and heliocentric? The geocentric […]

How does air resistance affect cars?

How does air resistance affect cars? Air friction does not significantly affect a car’s gas mileage. Cars are slowed down when they stir up the air too much. Stirring up the air creates vortices and billows that take energy away from the car. This effect is known as “wake drag”, “pressure drag”, or “form drag”. […]

Can a fire hose kill you?

Can a fire hose kill you? The most common cause of death in a fire is from inhaling hot gases rather from the flames. Respiratory burns can kill instantly, or at least as close as makes no difference. Also, structural fires will release toxic gases that can incapacitate and kill just as fast. How much […]

Can you see light if not why?

Can you see light if not why? Radiation within a certain, tiny spectrum of around 400 to 800 nanometers in wavelength, causes objects to be seen by we humans. We can’t see the reflected light from those objects but we can see the objects. If the light shines through something translucent it appears to glow. […]

How do B cells fight infection?

How do B cells fight infection? B-cells fight bacteria and viruses by making Y-shaped proteins called antibodies, which are specific to each pathogen and are able to lock onto the surface of an invading cell and mark it for destruction by other immune cells. B-lymphocytes and cancer have what may be described as a love-hate […]

What are the 3 main stages of cellular respiration?

What are the 3 main stages of cellular respiration? Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation. What is the cellular respiration process? Cellular respiration, the process by which organisms combine oxygen […]

Begin typing your search term above and press enter to search. Press ESC to cancel.

Back To Top