State why most biologists consider RNA to be life's first coding system.

In a mosquito with no meiotic errors, how many chromosomes come from the father's genome?

What is a non comunicable disease

Which is the correct order for these steps in cell signaling?

What is the scientific name for killer whales?

The best way to reduce wind erosion on a farm is to (A. cut down windbreaks (B. stop planting crops (C. stop irrigating unused fields (D. plant ground cover in unused fields

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.

True or false? all cell contain mitochondria, which perform cellular respiration

What may be a symptom of a person whose vien valves are not functioning properly and are causing fluid to flow away from the heart