Which of these is a hollow ball of cells that develops after the fertilization of the egg?

In humans, the male has an X and Y sex chromosome. The human female has two X chromosomes. In birds, the female has a Z and a W sex chromosome while the male has two Z chromosomes.

In scientific investigations, experimental results are checked by?

Nuclear fission involves A) combining atoms B) splitting atoms C) alternating atoms D) consuming large amounts of energy

How does mitochondria involved in the process of cellular respiration?

While a home was undergoing a renovation, workers discovered that there was asbestos in the walls. Before any further work could be attempted, the family that owned the house had to evacuate, and specialists were brought in to remove the asbestos.

What are examples of radio waves

In a population of spiders there are three different sizes: small, medium, and large. - --The large spiders are easily seen by predators. - --Small spiders have a difficult time finding food.

what is one type of new constellation that edmond halley saw in the sky while he was on the island of st. helena

Global winds and ocean currents are not related to and do not affect climates true or false? and why

What type of blood vessel returns blood to the heart? A. Artery B. Vein C. Capillary D. None of the above