Which of the following statements about human reproduction is true?

a) Mitosis in males is also known as spermatogenesis.

b) Sperm and ova are zygotes.

c) Oogenesis takes place in the ovaries of females.

Describe three types of barriers that can cause populations to become reproductively isolated from each other.

If the skeletal system gives us structure and support, what part of a house is the skeletal system most like? A) the roof of a house B) the frame of a house C) the plumbing of a house D) the crawl space under a house

Calcula la fuerza de atracción entre dos personas. Asume que los dos cuerpos tienen la misma masa (100 Kg) y que la distancia entre ellas es d = 1 m El valor de G=10-11 N. m2/kg2

Some bacteria, like those that cause Cholera, have a flagellum that allows them to

The most appropriate microscope for visualizing a living bacterial cell that is non-pigmented and unstained is:

Where on Earth's surface might you be if you are experiencing the westerlies? Explain how air pressure, temperature, and the Coriolis effect influence the movement and direction of these winds.

Why might it be important to use different models at different stages of an investigation.

Which of the following wave properties would be the best way to measure the height of a wave?

Would evolution by natural selection be able to happen if there was NO differential survival and reproduction within a species? Why or why not?

Air pollution is caused by A. natural events and human activities. B. human activities but not natural events. C. heavy rainfall. D. the sun.