What is the definition of niche?

A. a unique role of an organism in its ecosystem

B. a place where an organism lives and gets its resources

C. a set of organisms working with each other and their environment

A paragraph on the 3 forms of energy involved in a muscle contraction

A woman wants to become pregnant. Which of the following is the best thing she could do for her potential baby prior to becoming pregnant? a. Take vitamin supplements and avoid doing any exercises that could harm the embryo. b.

What two impacts do fossil fuels have on the environment?

What is a small, rocky object that orbits the Sun and is usually found in a belt between Mars and Jupiter?

What percent of a sample of As-81 remains un-decayed after 43.2 seconds

Three hundred acres of pine forest in Florida were harvested for timber. A few trees were left at intervals in the harvested area as seed sources. What will be the likely progression of new growth on this land over the next few decades? A.

Why are fossils rare

What type of biomolecule is being produced at the ribosome? A) lipid B) protein C) carbohydrate D) nucleic acid

Name the calf muscle.

Describe the outcome of irregular mitosis, meiosis I and meiosis II. be sure use all relevant terminology and to note the impact on chromosomal number in each circumstance.