Which element has exactly 29 electrons and is in period 4

Which statement is true about biodiversity? A. Natural disasters affect biodiversity more than human activity does. B. Natural disasters don't affect biodiversity at all. C. Human activity can improve, maintain, or hurt biodiversity. D.

The suns energy which supports the life is transmitted to earth in the form of what

What are the two strands of dna held together by?

How many nucleotides are needed to code for a protein with 450 amino acids?

Which of the following is a statement about weather? The weather in Seattle tends to be rainy. The tropical rain forest has high annual precipitation. The forecast says the temperature will be 80°F tomorrow.

Administration of which classes of medications can decrease secretions of the upper respiratory tract?

Explain how DNA froms chromosomes in eukaryotic cells

Decomposers act in which level of the trophies pyramid?

What sort of insect has six legs? List one fact about it as well

If the velocity of an object is changing, its momentum is also changing?