Burning of coal plays a role in which of the following cycle?

A)

nitrogen

B)

water

C)

carbon

D)

phosphorus

Which best describes the order of the technology used to transmit a sound through the radio? microphone → transmitter → microphone radio → transmitter → radio radio transmitter microphone microphone → transmitter → radio

How does cell technology affect government? 4 New government agencies must be created to fund and regulate each type of technology. 3 A new technology may reduce the amount of money that a hospital needs to operate.

Nandita is learning about cells in the human body and made this table. A mutation in which type of cell can be passed along from parent to child? A) sex cell B) blood cell C) gland cell D) heart muscle cell

Many birds are monogamous, meaning that one male and one female mate for an entire breeding season. Other animals are naturally polygamous, meaning one female has the opportunity to mate with many males or one male mates with multiple females.

What problems would you expect to observe in an ecosystem without secondary consumers

Why does the meiosis produce cells with only half the amount of DNA? How does this aid in the formation of a healthy zygote?

Which way does the sun's gravity act on any body in orbit? A. pulls it forward in its orbit B. pulls it backward in its orbit C. pulls it toward the sun

Which two processes result in variations in sexually reproducing species? (1) mutation and genetic recombination (2) mitosis and natural selection (3) extinction and gene replacement (4) selective breeding and cloning

How was the amount of food caught by a heron related to change in biotic and abiotic factors?

Which ecosystem demonstrates the lesser biodiversity? Why?