Biology

An estuary is the mouth of a river or part of a river that is at sea level that has freshwater at low tides and salt water at high tides. They are usually enclosed and sometimes when water rushes in with the high tide it can create a tidal bore, or a wave, that will keep going until its energy is spent. The are also known as bays, lagoons, harbors, inlets, and sounds. An estuary is rich in plant life with many adaptations in order to survive the salty sea water. They also have a lot of bird life.

the movement of deep, cold, nutrient-rich water goes up to the surface. Up-welling can be rising of any liquid.

water moving up from the benthic zone

a species can gradually change into new species

genes contain the code to make proteins

proteins are made from instructions in genes

A disturbance that repeats over and over

Natural selection occurs when four conditions are met:

1. There is variation among individuals.

2. That variation is at least partially heritable.

3. That variation is linked to differential reproductive success.

4. More individuals are born than can survive and reproduce.

allele frequency change Apex :)

That plant needs stable weather.

The method an organism uses to produce offspring

the way that a species creates offspring

Finches developed many different adaptations. For example, one type of finch had a short strong beak meant for cracking seeds, while another had a long narrow beak for gathering food from the inside of flowers, and cacti, therefore making each species more adapted to its specific environment and more able to gather food then they would on another island with a different main food source.

You mama

The allele frequency does not change.

The death rate of hares increases.

Which statement is ture about all adaptations

Asn- Lys- Asp (Apex 2021)