WHY DO COMMUNITIES CHANGE OVER TIME
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Some nutrients and other types of particles can be taken into a cell when the cell's plasma membrane encloses the particles and pinches off, forming a free-floating vesicle inside the cell. A lysosome containing digestive enzymes then fuses with the vesicle. Which term best classifies the uptake of such particles by the cell? simple diffusion endocytosis exocytosis osmosis
In a scientific investigation, the term “quantitative data” refers to numbers that are usually followed by
Cells such as verve and muscle cells contain more mitochondria than cells. Why?
What do scientists need to look at before developing an argument
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Answer:
The correct answer would be 9%.
As the population is in genetic equilibrium, then the population must be following the Hardy-Weinberg equations:
p + q = 1 and
p² + q² + 2pq = 1
The frequency of A (dominant allele) in a population is 70 percent.
Thus, the value of p would be 70/100 which comes out be 0.7
Similarly, the value of q would be equal to 0.3
The frequency of individual with homozygous recessive genotype, that is, aa would be equal to q².
So, q² = ⇒ 0.09
Thus, the frequency of individual with genotype aa would be equal to 9 percent.
Why?
The frequency for allele a is 30% or 0.3. Let's call this frequency p.
p^2 would then represent the frequency of genotype aa (this is is derived from the formula p^2+2pq+q^2=1 where p and q represent alleles a and A respectively. So p^2=aa, pq=Aa and q^2=AA)
0.3^2=0.09 or 9%
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DNA comparisons was developed after Darwin's time and have become an important method for studying evolution.
While Darwin was able to make observations of variation and adaptation in different species, he did not have access to the genetic information that DNA provides. It wasn't until the discovery of the structure of DNA in 1953 that scientists began to explore the use of DNA in studying evolution.
Since then, DNA sequencing and comparisons have become increasingly important tools in the study of evolutionary relationships and processes.
In science, DNA comparison is a ground-breaking technology. It has given researchers the ability to compare and contrast DNA samples with previously unheard-of accuracy.
Researchers can learn a great deal about genetic links and diseases as well as create brand-new remedies for illnesses by examining these traits.
To learn more about Evolution, visit:
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Answer:
binary fission...
Explanation:
Answer:A- conjugation
Explanation:
B. is the same everywhere in the universe
C. depends on the amount of gravity
D. is different on different planets
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(Weight changes with gravity, not mass.)
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Answer:
C) Rapid reproduction
Explanation:
Invasive species reproduce rapidly, leading to population growth and colonization of new environments. They often lack high genetic diversity, a specialized diet, and strong competition with native species. Their rapid reproduction and adaptability to new environments make them a threat to native species.
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Their life cycle of mosses has alternation of generation - a haploid gametophyte and a diploid sporophyte. Gametophyte produces haploid gametes which fuse to form a diploid zygote. The zygote grows into diploid sporophyte which produces haploid spores. The spores grow into gametophyte and the cycle begins again.
Mosses require water for reproduction. Before fertilization, the sperm swims to an egg through the water. Therefore, mosses require water for successful fertilization. In drought periods, without water, the sperm cell could not swim to the egg cell.
Answer:
The flagellated sperm would not be able to swim to the eggs for fertilization.
Explanation: I took the test and got it right. :)