Answer:
The correct answer is option a. "Shared DNA sequences".
Explanation:
The most reliable evidence that suggest that vertebrates are more closely related to echinoderms than are any other invertebrate phyla is the fact that vertebrates share DNA sequences with echinoderms. Among the different genes that have been analyzed between vertebrates and echinoderms, the genes involved in immunology and biomineralization are the ones practically identical among these two categories of species.
The answer is nonvascular plants.
The plants that are similar to algae are called nonvascular plants. They are the plants small plants with the absence of vascular system. They do not have roots. They have small hair likes that insert to substrate to keep the plants in place instead of roots. These are called rhizoids.
Answer:
Option (1).
Explanation:
DNA (deoxyribo nucleic acid ) is the genetic material present in all the organisms except some viruses. DNA structure follows the Chargaff's rule.
Accoprding to Chargaff's rule, the ratio of purines to pyrimidines in a DNA molecule is equal to 1. The amount of guanine is nearly equal to the amount of cytosine whereas the amount of thymine is nearly equal to the amount of adenine.
Thus, the correct answer is option (1).
Answer:
anser is d on e2020
Explanation:
Oceanic crust to continental crust collision led to the formation of the Andes Mountains. Therefore, the correct option is B.
The collision between the oceanic Nazca Plate and the continental South American Plate was the primary reason for the development of the Andes Mountains. The collision of oceanic crust with continental crust occurs when oceanic crust subducts under continental crust. The subduction of oceanic crust beneath continental crust resulted in the uplift and formation of the Andes Mountains through volcanic activity and crustal deformation.
Therefore, the correct option is B.
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Answer:
B
Explanation: Oceaninc to continental as the oceanic crust subducted under the continental
Answer:
All statements except "D). Meiosis occurs often because it allows growth and repair of body tissues in multicellular organisms" describe the advantages of meiosis.
In multicellular organisms, growth and repair of the tissues are achieved by mitosis.
Mitosis is the process in which parent cell divides into two daughter cells each with the same and an equal number of chromosomes as present in the parent cell.
It helps in producing new cells and replacing the old or damaged cells.
It generally takes place in all the cells of the body (somatic cells) except germ cells.
Answer:
d
Explanation: