What two chromosomes do males have for gender?

(A) X chromosomes

(B) Y chromosomes

(C) X and Y chromosomes

(D) Sperm cells do not contain sex chromosomes

Are we currently in an ice age or an interglacial period?

Cells contain a specific balance of salt and water. what happens if a cell is dropped into container of pure water

Cystic Fibrosis is an autosomal recessive disorder. Explain how it is possible that two parents that do not have this disorder can have a child that does.

Cells are adapted to perform specific functions which of the following terms refers to the capability

The rainforest contains half of the Earth's wildlife and at least two thirds of its plant species. It can hold great quantities of water and is very important to the planet's water cycle.

Why do you think scouts could hear better through the solid ground rather than through the air?

What is an aftershock

The Hawaiian honeycreeper has a highly evolved, mutualistic relationship with the Hawaiian silversword, a native plant that grows on beach front cliffs and dunes.

Which of the following components of the blood contains antibodies? A. red cells B. white cells C. platelets D. plasma class - forensic science

Why do the atoms in the top rows in the Periodic Table have higher electronegativity than atoms in lower rows? The electrons of those atoms are farther from the nucleus. The electrons of those atoms are closer to the nucleus.