Which best describes work?

a. holding a pencil

b. lifting a feather

c. dropping a ball

Why are chromosomes sorted into pairs of similar length?

Amy was observing the growth of five kinds of flowering plants on a windowsill. She noticed that some of the flowers on some of the plants turned toward the sun during the day, but the flowers on other plants did not turn toward the sun.

What is a tetrad? A. A chromatid before meiosis B. Another term for a sperm cell C. A haploid cell produced by meiosis D. Two sets of sister chromatids

The great hornbill and the toucan both eat the same fruit, insects, and nuts. They both live in the rainforest. Their large bills function to get food and also as warning coloration.

Which of the following items is best observed under a compound light microscop. A.) an atom B.) a colony of ants C.) a single-called organism D.) an underground fungal system

What does the principle of descent with modification imply?

There is a high level of occupational inheritance. a. True b. False

Some types of aquatic frogs bury themselves in the mud and spend the winter hibernating at the bottom of the lake and pond. which characteristic of life does this behavior represent

How do nonliving things and living things interact in the temperate forest biome

An apples cells contain 34 chromosomes. After the process of meiosis is complete, each gamete produced would contain how many chromosomes?