Answer:
The modern evolutionary synthesis defines evolution as the change over time in this genetic variation. The frequency of one particular allele will become more or less prevalent relative to other forms of that gene.
Explanation:
A substantial part of the phenotypic variation in a population is caused by genotypic variation.
The Euglena was green because it had chloroplasts in it, just like plants. The body structure at the base of the tail that relates to this is the photo receptor. These two enabled it to photosynthesize food like plants, but it could also take food from its surroundings like animals.
Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The bacteria survive and continue to multiply causing more harm. Bacteria can do this through several mechanisms. (By google)
Answer:
Air temperature: Ice, tree rings
Ocean temperature: Chemical isotopes in foraminifera
Carbon dioxide levels: Ice
Kinds of plants: Fossilized pollen grains
Rainfall: Tree rings
Explanation:
These are the correct answers.
Answer:
There are four steps in secondary Succession.
1.
1st year after forest fire, flood, or farmer abandons a field: Weeds grow,
usually crabgrass.
2.
2nd year: Seeds blown in or carried in by animals become new weedy
plants, such as horse-weed.
3.
5 to 15 years: Small pines begin growing in the area, gradually become a
pine forest
4.
As older pines die hardwoods succeed them if the climate supports them.
Explanation:
