Do enzymes raise or lower the activation energy of a reaction

Heather has to solve this system of equations using elimination. what should be her first step?

Along with vitamin c, what mineral is important in the synthesis of collagen? along with vitamin c, what mineral is important in the synthesis of collagen? magnesium zinc iron copper

What does observations mean

You are looking at the fossil remains of a primate discovered in Uganda and dating to approximately 20 million years ago. This fossil species has a dental formula of 2 to 1 to 2 to 3.

The hare curls up to stay warm. It has a short tail and ears that hold in body heat. The hare would most likely live in a tundra biome. true r false

When reproduction is achieved through meiosis and subsequent fertilization it is called?

Which statement is correct? A. Both plants and fungi undergo photosynthesis. B. Both protists and fungi are eukaryotic. C. Like some prokaryotes, fungi are autotrophic. D. Both animals and fungi lack cell walls.

In an ecosystem, bees are responsible for the pollination of flowers. Over time, the number of bees in the population have increased. Which of these best explains why the number of flowers in the population have also increased?

What is a likely consequence of continued human population growth?

Why is an organisms role important for its community?