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Common characteristics supporting the idea that the first land plants were related to green algae include All of the above. Thus, option "D" is correct.
Which algae is responsible for main supply of oxygen in the atmosphere?
The Green algae are responsible for the main supply of oxygen in the atmosphere. There are tiny organisms called cyanobacteria (or blue-green algae) which photosynthesise carbohydrates for their nutrition and growth using sunlight, water, and carbon dioxide.
The waste product of cyanobacteria is the oxygen of the atmosphere.
Thus, option "D" is correct.
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Common characteristics supporting the idea that the first land plants were related to green algae include all of the choices.
Related Questions
Homeostasis refers to
PLEASE HELP TAKING TEST NOW NO LINKS PLEASE!!!!!!!!!!!!!! In an ecosystem with low biodiversity, the removal of a species will (1 point)O not affect the ecosystem because another species will take its place.o disturb the ecosystem because another species will not be able to replace it.o not affect the ecosystem because another species will not be able to replace it.disturb the ecosystem because another species will take its place.
Can you help me put them in the right please asap I will mark brainly
Cell membranes have each of the following functions EXCEPT-Аgiving the cell a rigid, inflexible shape.Ballowing water to pass into the cell.сprotecting the cell from the outer environment.Dregulating movement of materials in and out of the cell.
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Answer:
C- active B- diffusion A- facilitated
Explanation:
b. Suppose an unusual heritable characteristic helped animals to live longer but made them sterile so they could not have any offspring. Explain why this heritable characteristic would not become more common in subsequent generations as a result of evolution by natural selection.
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Explanation:
a. Some novel traits become fixed within a population, as they confer advantageous adaptations to an individual within their environment. These adaptations let these individuals live longer than their counterparts, and mate to produce more offspring over time, who also possess these traits.
b. For natural selection to act on a trait, it must confer a particularly beneficial advantage, and it should also be passed on to various offspring capable of surviving and reproducing at a higher rate. Without the ability to reproduce, natural selection cannot occur and is not influenced by an individual's fitness.
Natural selection leads to evolutionary change when individuals with certain characteristics have a greater survival or reproductive rate than other individuals in a population and pass on these inheritable genetic characteristics to their offspring.
Further Explanation:
Genetic variation has an important impact on small populations. There, mutations add up over time in a population, modifying the distribution of alleles or various forms of a gene. Natural selection may lead to loss of diversity in a population through genetic drift; one trait's allelic frequency increases significantly while others become less prevalent. Usually these differences exist because of occurrences of mutation and recombination.
Spontaneous changes within the genome occurring during the cycle of cell division are called mutations. These are defects of copies of the DNA produced within the cell; mutations may range from small modifications called single nucleotide polymorphisms to large-scale deletions and multi-gene additions.
Such mutations create variants which, within a group, become permanent, resulting in the creation of different, genetically distinct populations called species. Mutations occur over time in a population, changing the distribution of alleles or various forms of a gene-this is called genetic drift.
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Oxigen - 21% -
Hope it helped!
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Answer:
The correct answer is ecological succession.
Explanation:
For the growth and development of an ecosystem, the phenomenon of ecological succession plays an essential role. A slow procedure by which the ecosystems modify and develop with time is termed as the ecological succession. There are prime two kinds of succession, that is, primary succession and secondary succession.
The phenomenon of ecological succession helps in the colonization of the novel areas, and in the recolonization of the destructed ecosystems, this helps the species to get amend with the modifications taking place in the surroundings and helps them to thrive. The given case is an illustration of ecological succession as the flowing of lava creates barren land, which further helps in the establishment of the pioneer plants. These pioneer species of plants helps in the development of a new ecosystem.
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Answer:
m = V × ρ
= 5 cubic meter × 40 kilogram/cubic meter
= 200 kilogram
Explanation:
B. It's easier to introduce genes from one species into another than from just one species.
C. Scientists could have just "turned on" the rice genes, but they wouldn't have learned anything from that process.
D. It's easy to extract genes from bacteria.
E. The scientists didn't know how to "turn on" the genes in the rice.
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Answer:
A. The rice genes didn't make the right type of vitamin A.
Explanation:
Regular white rice does not have the gene to produce beta carotene. The human body converts the beta carotene into vitamin A.
To increase the nutritional value of rice, the gene for beta carotene from daffodil flowers was inserted into the cells of endosperm of rice.
This allowed these cells of the genetically engineered rice varieties to produce beta carotene. Production of beta carotene imparted golden color to the rice grain and hence, the name.