The structure of DNA resembles a twisted ladder. which structural components form the rungs of the ladder?

Mendel's law of independent assortment applies to genes that are on different homologous chromosomes. However, two of the traits Mendel studied were actually located on the same chromosome.

Why is the entire biosphere a ecosystem

In photosynthesis plants use carbon, (H), and oxygen to form organic compounds? In what form does the plant use these elements? A. Glucose C6H12O6 B. Carbon Dioxide (CO2) and Water (H20) C. Carbon monoxide (CO) D. elemental forms (C, H, and O)

Which of the following describes a conclusion? A. scientific question B. a possible answer to a question C. a statement regarding the outcome of an investigation

What do humans and other animals use the sense of taste to do? A) Locate food B) Recognize other organisms C) React to dangerous situations D) Judge which foods are okay to eat

A student monitored tides using a webcam. She noticed that the tide reached different parts of the shore at different times of day. Which factors can explain the student's observations?

In gamete formation, the starting cells in females are the ___ and the

Under a microscope smooth muscles are

Why has the usage of Natural Gas dropped throughout the years?

Which of the following terms defines how the individual organism allocates resources to growth, reproduction, and activities or structures related to survival? survivorship life history energy budget demography