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netineya [11]
3 years ago
7

What is the source of energy for photosynthesis

Biology
1 answer:
____ [38]3 years ago
7 0
Answer: 
Sunlight

Explanation:
Plants and other organisms that use photosynthesis undergo this process to convert useable energy from sunlight into nutrition for themselves, as well as releasing oxygen.
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What describes the relationship being proteins dna and cells
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Cells contain DNA that controls the production of proteins.

Explanation:

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3 years ago
PLEASE HELP. SIMPLE QUESTION MARKING BRALIEST TOO
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Yes , restrictions should be given on who can buy explosives. In short only authorised officers should always investigator users of explosives, they should investigate safety and security matter that has to do with explosives. They should make a strict regulations and penalty for defaulters. I think advice should be given users and buyers that has access to, explosives to protect public safety, property and the environment.

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3 years ago
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If the room you are in became low in oxygen, why would you suffocate?
skad [1K]

Answer: B

Explanation:

carbon monoxide is poison and can kill you

4 0
3 years ago
Coin tosses can demonstrate the effects of genetic drift. Imagine that heads and tails are two alleles in a population. Consider
nydimaria [60]

Answer:

Smaller populations have a greater chance of having one allele expressed disproportionately.

Explanation:

Genetic drift corresponds to a drastic casual alteration of the natural order, reaching the genotypic concentration of one or several species, not preliminarily involving natural selection factors, but caused by sudden events.  Such phenomenon is characterized by the occurrence of ecological catastrophes, for example: earthquakes, tsunamis, tornadoes, floods, burnings, avalanches and other processes, affecting a large population contingent. Thus limiting the genetic content of a particular group, restricted to the prevailing individuals.

In this situation, with low variability, differentiated individuals will experience a more significant selection pressure in relation to the ascending lineage, which minimized the achievements of selection due to the high number of living individuals. In this scenario, smaller populations will have a greater chance of having a disproportionately expressed allele as the number of members is reduced. We can also see this effect if by using a coin we imagine that heads and tails are two alleles in a population and each coin toss represents one member of that population.

4 0
2 years ago
What is the name for the science that studies evolution that oc-
abruzzese [7]

Answer:

D. Population genetics

Population genetics is the study of genetic variation within populations, and involves the examination and modelling of changes in the frequencies of genes and alleles in populations over space and time. ... In natural populations, however, the genetic composition of a population's gene pool may change over time.

Explanation:

microevolution - evolutionary change within a species or small group of organisms, especially over a short period. (Not studying the overall evolution in the population, just a single allele usually) Not it then

macroevolution - Macroevolution in the modern sense is evolution that is guided by selection among interspecific variation, as opposed to selection among intraspecific variation in microevolution (this goes over huge groups of different species) Not it then

gene pool - The gene pool is the set of all genes, or genetic information, in any population, usually of a particular species. (Not the study of evolution in a population) Not that then

So it has to be D

3 0
2 years ago
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