What are differences between sperm and egg?

How high would you have to lift a 1000kg car to guve it a potential energy of 2.0x10^3j?

Scientists use a certain technique to measure RNA levels in various cell types. which of the following is most directly observed by this technique? a. mutation b. cell division c. gene expression d. osmotic regulation

Can any one organism in the food web be a consumer, an omnivore a predator and a pr Justify your answer?

According to frank-starling's law of the heart, the cardiac output is directly related to the:

When sea ice forms in the ocean does the salinity of the surrounding sea water increse, decrease, or remain the same

Describe the factor that affect blood pressure

What is true about one strand of DNA? Question 3 options: It contains many proteins. It contains many alleles. It contains many chromosomes. It contains many genes.

Write a paragraph to explain the steps of metamorphasis using the words adult, egg, larva, body parts, grow, rearange, and life cycle

The process of creating a current in a circuit by changeing a magnetic field

Explain why the fact that invasive species did not co-evolve with the native species unbalances an ecosystem.