Answer:
cell membrane, DNA and RNA, cytoplasm, along with ribosomes
Explanation:
Answer:
Remove all wildlife from the bay.
Explanation:
An algal bloom refers to the excessive proliferation of algal species within a body of water, often triggered by nutrient overload from pollutants, a process known as Eutrophication.
The occurrence of an algal bloom signifies pollution within that water body, leading to bacterial degradation of the pollutants. As bacteria metabolize pollutants, they consume large amounts of dissolved oxygen in the water, drastically decreasing oxygen levels. This situation poses a significant threat to aquatic organisms that depend on oxygen, resulting in possible animal suffocation or starvation.
Therefore, the priority action upon detecting an algal bloom in a bay is to evacuate all wildlife to avert mass deaths.
A. Adding phosphate groups to target proteins. Explanation: CDKs, or cyclin-dependent kinases, play a crucial role in managing the cell cycle by interacting with cyclins, the regulatory proteins that activate them. The activity of different Cdks fluctuates during the cell cycle. When a specific CDK binds with its corresponding cyclin, a cyclin-Cdk complex forms, which is responsible for phosphorylating target proteins. This process can activate some proteins while inhibiting others — for example, phosphorylation leads to the degradation of p27, a key inhibitor of cell division, which subsequently allows non-dividing cells to begin division.
Answer:
1. Mutation- enhances genetic variation
2. Selection- may raise, lower, or maintain genetic variation
3. Genetic drift- diminishes genetic variation.
4. Gene flow- could either enhance or reduce genetic variation
Explanation:
1. Mutation denotes changes in an organism's DNA. The mutations lead to new adaptive traits that evolve, which increases the genetic diversity of organisms.
2. Natural selection favors organisms best suited to their environment. Thus, selection can increase, decrease, or keep variation in a population steady.
3. Genetic drift occurs due to random events altering a population's gene pool. When this phenomenon transpires, the genetic variation within that population typically decreases.
4. Gene flow involves changes to the gene pool due to immigration and emigration. This factor can thus increase or decrease genetic variation.
The Earth is at the center Explanation: Aristotle first postulated that the Earth was round but maintained that all celestial bodies revolved around it.
