Answer:
4 amino acids will be made
Explanation:
1. A human eats a deer. Which of these terms applies to the relationship between the human and the deer?<span>
Answer: predation
2.</span>Humans and sharks both eat fish. Which of these terms applies to the relationship between the human and the shark?
Answer: Competition
3.Humans who have pets tend to be healthier than humans who do not have pets. Which of these terms applies to the relationship between a human and a pet?
Answer: mutualism
4.What is implied by the reference, "biotic portion of an ecosystem"?
Answer: the "living" portion of the ecosystem
5.What term applies to the relationship between a dog and a blood-sucking tick?Answer: parasitism
6.An egret eats insects stirred up by grazing animals. Which of these terms applies to the relationship between the egret and the grazing animal?Answer: commensalism
7. The concept that two species cannot occupy the same ecological niche simultaneously and continuously is called:Answer: the competitive exclusion principle
8. What is a serious problem that will result from predicted rises in global temperature?Answer: Species will be lost because rises in global temperature will exceed the rate at which natural selection can allow most organisms to adapt.
9. Why do most mutations occur?Answer: Random errors in DNA replication cause mutation.
10. What is the best definition of speciation?Answer: the process by which new species form
11. What is speciation resulting from two populations becoming isolated from one another?Answer: allopatric speciation
12.A scientific name is composed of two parts. What are they?Answers: genus and species
13. What is the smallest group that can evolve?Answer: population
14. A forest fire kills off 90% of a rabbit population. What has occurred in this population?Answer: bottleneck
15. How do founder effect, genetic drift, and a bottleneck relate to each other?Answer: Founder effect and bottleneck are types of genetic drift.
16. In the common phrase, "survival of the fittest," what determines how fit an individual is?Answer: reproductive success
17. Which postulate of natural selection is best supported by the work of Gregor Mendel?Answer: Traits are passed from parent to offspring.
18. What can you conclude by looking at the following sequences from the cytochrome c gene of humans, mice, and an unknown organism? Human - ATGGTCTCTTT Mouse - ACGGTCTGTTC Unknown - ACGGTGTGTTCAnswer: The unknown organism is more closely related to mice than to humans.
19. What conclusion can you make from comparing the bones in a bird wing, a bat wing, and a pterodactyl wing?Answer: These organisms share a common ancestor with each other.
20. When predatory snakes eat songbirds with the loudest songs, they are acting as agents of what?Answer: natural selection
Bacteria and humans are structured differently. All bacteria fall into a a distinct domain of organisms called "Prokaryotes" which are identified with a striking characteristic of absence of well defined nucleus. While all the higher organisms like Humans, are "Eukaryotes" since their cells have a defined structure called "nucleus"
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❖ 1. Prophase- coils form, chromosomes become visible and condensed, nucleolus disappears, nuclear membrane breaks down
2. Metaphase - spindle fibers pull duplicated chromosomes to middle of cell. Chromosomes line up in single file
3. Anaphase- each sister chromatid separates and they move to opposite sides
4. Telophase- spindle fibers disappear. Nuclear membrane forms around chromatin. Two identical nuclei are formed. Final phase of mitosis.
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Answer:
Early colonizer role
Explanation:
Ecological succession refers to changes in the structure of components species of an ecological community over a period of time which can be as low as a decade or as large as millions of years.
Succession is divided into 3 main stages;
- primary succession
- secondary succession
- climax/stable community
Primary succession occur when living organism colonize an area that holds no life at all. The colonizing living organisms are therefore referred to as <em>pioneer species. </em>They colonize the new area and kickstart the various ecological processes that make up a community.
Secondary succession occur when the living organisms inhabiting a community are gradually replaced by new species of organisms.
Climax community is a stable or minimally changing ecological communities.
<em>Hence, pioneer species are early colonizer of a newly areas that hold no previous life. They kickstart the various ecological processes that constitute an ecological community such as soil formation, nutrient cycling, and primary productivity.</em>
