I do believe that it is C. crossing over :) I hope that is correct, it seems like the only plausible answer.
I'm pretty sure your talking about Vertebrates
Answer:
15 chromosomes
Explanation:
The endosperm is formed through double fertilization where one male gamete nucleus with polar nuclei to form a triploid nucleus called the primary endosperm. The endosperm therefore will contain 15 chromosomes since the polar nuclei is diploid and the male gamete is haploid forming a triploid nucleus.
To make an argument about how environmental imbalance affects the ecosystem of the Chesapeake Bay, research on reliable sources on the topic is necessary.
<h3 /><h3>How is the Chesapeake Bay?</h3>
The bay corresponds to the largest ecosystem of estuaries in the USA, being a source of diverse types of habitat for wildlife, with more than 3,600 species of animals and plants.
An example of the environmental imbalance in the area is the commercial and recreational fishing of blue crab, whose population had a significant reduction in 2022.
Therefore, environmental factors and human exploration are responsible for generating such an imbalance, and the development of policies and actions to promote sustainability is essential.
Find out more about sustainability here:
brainly.com/question/25713190
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Answer:
B.Gymnoperms produce male cones and female cones, and the pollen from a male cone fertilizes the egg inside a female cone.