Why is a large steroid molecule able to cross the cell membrane when a smaller molecule such as adrenaline cannot?

Small groups or clusters of neuron cell bodies and dendrites found in the interior of the brain are called:

Which are the catalysts of reaction in living tings

Diference between aerobic and anaerobic respiration in terms of energy production and location.

Parathyroid glands produce hormones that are essential to the proper functions of which systems?

In a species of wild animal, claw size is determined by a combination of two alleles. Allele Q codes for large claws, while allele q codes for small claws. Individuals with a heterozygous genotype possess claws of medium size.

Which has a more long term consistency? (Climate or Weather)

Bees and butterflies are dependent on flowers for their food. However, the more successful of the two will get the nectar. Which kind of animal interaction does this demonstrate?

Why do all macromolecules have in common with eachother they all act as catalyst

Where do primary consumers get their carbon from

How is fermentation involved in the production of atp?