A fly eats a piece of fruit, A spider eats the fly, a bird eats the spider. The bird dies, and is decomposed. At which stage of the food chain is the least amount of energy transferred from organism to organism?

Term describes the exchange of gases within the cells of the blood and tissues

What is the nature-nurture debate?

The law of segregation deals with which of the following? A. the separation of alleles during meiosis B. the separation of daughter cells during n mitosis c) the separation of homologous chromosomes during mitosis D.

Describe how a human muscle is organized. How does the structure of the muscle reflect the function?

When men are asked to identify the ideal male body, they typically select a body weight that is about?

Which population is limited by density-dependent factors? (a) A deer population is reduced as a result of a forest fire. (b) A population of rams is decimated by an earthquake. (c) A local wolf population experiences a lethal epidemic of parvovirus.

Which statement correctly explains how recombination increases genetic variation

In an island ecosystem, a species of beetle feeds on the leaves of a shrubby plant. A species of songbird preys on the beetle species. A hawk species hunts the songbirds for food.

which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

Which of the following is a growing threat to animals