This common ancestor, called_,

was most likely a single-celled organism.

Why are groups of small cells better then one large cell at moving material in and out

A species of marine snails have either solid or striped shells. Scientists found that 57 percent of the snail population was striped, and 33 percent was solid.

In the dna molecule, thymine always bonds with thymine guanine adenine cytosine uracil

Locus A and locus B recombine with 10 percent frequency. Locus A and locus C recombine with 23 percent frequency. Locus B and locus D recombine with 4 percent frequency. Locus D and locus E do not recombine.

Why couldnt one single dichotomous key be used for all the organisms on earth

Step 6: Measure the Heights of the Plants at the End of Week 3 Use a calculator to compute the average heights of the plants in each group to the nearest centimeter. Week 3 Average Heights Control Group: cm Exper. Group: cm

The nurse is communicating with a client who begins to cry. the nurse places her hand on the client's arm and sits quietly at the client's beside. what mode of communication is the nurse using to offer caring and comfort for the client?

Scientists have a theory about the relationship between climate and biodiversity. Which best describes this theory? Warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants.

You have just heard about a situation in which someone who was drunk vandalized a building and assaulted a security guard.

1. identify the force that was mainly responsible for the formation of the planets in our solar system 2. Describe how that force formed the planets 3. Describe two other examples of the effects of this force has in our solar system.