if you see a sedimentary outcrop and red layers of sand are at the top of pale layers of rock, what does this tell you about the ages of the rock layers?

What is one difference between dna and rna?

Which letter or pair of letters would represent the genes of a hybrid? Ss ss s S

Is a silver ring a homogeneous or a heterogeneous mixture "it's actually a chemistry question"

Fill in the word that completes each sentence. In the mitochondrion, small molecules combine with to produce and carbon dioxide. This process releases a large amount of.

Alcohol and other psychoactive drugs affect which parts of the brain? #1. primitive brain #2. reasoning center of the new brain #3. neocortex #4. old brain

When you scratch a mosquito bite, you damage some cells. Damaged cells release histamine, which causes localized swelling. The swelling can crush cells, causing them to release more histamine. This is an example of

With respect to the overwhelming similarity in behavior between males and females, how many PAIRS of chromosomes are unisex (seen in both males and females) ?

Which of these habitats has a high salinity? O A. River B. Stream c. Lake D. Ocean

Which statement describes a property shared by lipids and carbohydrates

When comparing lakes and oceans, most lakes have A) lower levels of salt. B) higher levels of salt. C) inconsistent levels of salt. D) about the same level of salt.