Answer:
A bat using echolocation.
A whale using sonar waves.
A gazelle listening to the footsteps of a cheetah and running away.
Explanation:
My extensive knowledge of the show Wild Kratts.
Explanation:
The use of pesticides can dramatically increase crop production and ensure a higher quality of produce. However, pesticides are also toxic chemicals designed to kill agricultural pests, and some can cause problems if they are consumed by humans in large amounts. ... Residues of these drugs can also be hazardous to humans.
If laboratory findings show that a patient has low hemoglobin
and low hematocrit levels, the anemia may have resulted from any the following:
- Blood loss
- Inadequate erythrocyte (Red blood cell) production
- Abnormal erythrocyte production
- Hemolysis (The destruction of normally formed erythrocytes<span>)</span>
Answer:
2. A change occurs in the environment.
4. Poorly adapted individuals have decreased survivorship.
1. Well-adapted individuals leave more offspring than do poorly adapted individuals.
3. Genetic frequencies within the population change.
Explanation:
The natural selection theory was developed by Darwin to explain how evolution occur within a population. The environment is in constant state of changes and always select for organisms that are better adapted to it.
Poorly adapted organisms gradually reduce from the population as a result of decreased survival while well-adapted individuals multiply and contribute more to successive generation.
Well-adapted individuals pass on the adaptive alleles to their offspring, eventually leading to a change in gene frequencies within the population.
Hence, the sequence of events is 2, 4, 1 and 3.
