During which period of the Paleozoic Era did the first amphibians evolve?

Permian

Devonian

Cambrian

Carboniferous

Which of the following describes the number of times an analog wave is measured each second during an analog-to-digital conversion? Select one: A. Converting rate B. Simplifying rate C. Conversion rate D. Sampling rate

What is the difference between vehicle borne and vector borne transmission?

Sounds of explosions taking place on other planets is not heard by a person on the earth. give reason

Political scientists use political models to describe which of the following? a. political spectrum b. political shift c. political opiniond. political climate

A 50kg box is pulled on by a rope. The rope applies a horizontal force of 180 N to the box. What is the normal force exerted on the box by the floor?

What's the definition of: • cellular respiration • photosynthesis

What are the steps that are important to take for your safety during an earthquake? a. stay away from walls and windows c. stay away from electrical and gas lines b. get under a desk or table d. all of the above

You have an open air column of length 1.40 m in air at 24.2 °C. What is the frequency of the third harmonic?

Why do we use average force while solving momentum problems? How is net force related to the momentum of the object?

If you had a positive 8 score on the sit-an-reach test you