A new organism begins to form when egg and sperm cells join in the process called fertilization

What best describes the role of producers in an ecosystem?

During a lunar eclipse, what occurs?

The heavier elements in the universe were formed by A. a series of star cycles B. the sun C. force of gravity D. black holes E. the Big Bang

is the hormone that is released by the mother's pituitary gland that is responsible for initiating contractions in the uterus as a precursor to labor.

When cells divide or multiply, the dna must be copied, or replicated. all known organisms replicate their dna by a method known as semi-conservative replication, in which each of the two strands of the parent dna becomes part of the daughter dna?

What happens to the force of gravity between two masses if one mass is increased A. it stays the same B. it decreases C. it increases D. it fluctuates

How can water intake affect the volume and concentration of urine?

You are a doctor examining a bone sample taken from a patient with weak bones. You find that the bone tissue contains many small pores. This is most likely caused by

In which layer of the epidermis are granules of keratohyalin formed?

In order to keep all other things the same and isolate the effects of one particular variable in the biology experiment, Kate will want to do which of the following? Check all that apply. Offer the same type of food to the rats in each trial.