Answer:
They require light, and their net effect is to convert water molecules into oxygen, while producing ATP molecules—from ADP and Pi—and NADPH molecules—via reduction of NADP+. ATP and NADPH are produced on the stroma side of the thylakoid membrane, where they can be used by the Calvin cycle.
Explanation:please give brainliest
Answer:
30
Explanation:
The seed of an angiosperm is formed as a result of fertilization (fusion of sperm in pollens and the ova from ovary). According to the question, the cells of the seed which will grow into the plant contains 20 chromosomes. Seeds of angiosperms contain a tissue called ENDOSPERM that forms as a result of the unique DOUBLE FERTILIZATION in angiosperms. It occurs when one haploid sperm cell fuses with two haploid polar nuclei to form a triploid endospermic structure that serves as food for the growing embryo in the seed.
Now based on the above explanation, the diploid plant cell with 20 chromosomes will have 10 chromosomes (half as much) in its gametes as a result of meiosis. This 10 chromosomes in each gamete (sperm and ovum) fuses to form a diploid zygote with 20 chromosomes, while one haploid sperm cell (10 chromosomes) also fuses with two haploid polar nuclei (10 chromosomes each) to form a triploid endosperm with 30 chromosomes i.e. 10+10+10.
Answer:
Prezygotic
Explanation:
Prezygotic means that the two species cannot reproduce a viable offspring before the two zygotes meet. Since behaivoral isolation is listed under being prezygotic because behaivors prevent their intercourse before the zygotes meet, then it is prezygotic.
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It will have effect in the global climate change
What can be concluded from the fossils of various organisms is that the organisms evolved to adapt to the environmental conditions of their contexts. Additionally, its morphology changed radically.
<h3>What is a fossil?</h3>
Fossils is a term to refer to the remains of past organisms preserved in sedimentary rocks. The science that deals with the study of fossils is paleontology.
Within paleontology are paleobiology, which studies the organisms of the past (paleobiological entities, which we know only from their fossil remains).
This science is the one that can study fossils in detail and draw conclusions such as the shape of organisms changing as a way of adapting to the environment in which they lived.
Learn more about fossils in: brainly.com/question/6867325
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