Is it true that an existing community is gradually replaced by another community in an ecological succession

What situation results from a postfertilization barrier to reproduction? what situation results from a postfertilization barrier to reproduction?

In the hardy-weinberg formula what does 2pq represent

Ocean waves are powerful and constant, two attributes that make wave power efficient enough to be used to generate electricity true or false

Which best describes an axon with myelin and an axon without myelin? Impulse transmission would be faster in the axon with myelin. Impulse transmission would be slower in the axon with myelin. An "all" response would occur in the axon with myelin.

Sterile vs non sterile sites diagnostic microbio

As the polypeptide is elongating during translation, what is the ribosome doing?

A gazelle population nearly doubles in four months (March - June). Which statement below best explains this change in gazelle population? : The numbers of predators have increased. Food resources have diminished.

Canned food is prone to what if cooked at a low heat? 1. Food containing more nutrients 2. Better tasting food 3. Botulism 4. can be canned in thinner cans

How can changing ocean currents lead to climatic cooling?

What color of light is the best for photosynthesis