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krok68 [10]
3 years ago
5

What is the one characteristic, besides function and nucleotide sequence, that makes all the different types of RNA different fr

om each other?
Biology
1 answer:
hichkok12 [17]3 years ago
8 0

Answer: One of the primary differences between DNA and RNA is that DNA is double-stranded while RNA is single-stranded.

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Which glaciers are mainly formed near a mountain?
Nitella [24]
Continental glacier.
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3 years ago
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describe and explain the adaptations of sperm and ovum that enables fertilisation and early development of the embryo to occur​
Mekhanik [1.2K]

The adaptations of the sperm and egg that allow fertilization to take place, and copulation occurs for the sperm to be deposited. These sperm penetrate the cervix and travel to the fallopian tube. There, they must find an oocyte, which is released in the process of ovulation.

<h3>What is fertilization and embryo development?</h3>

In the first weeks after fertilization, the zygote makes many changes and develops rapidly. The first eight weeks of development is known as the organogenic period and is the embryonic stage of development. This period is a crucial phase of development for the embryo's organs.

With this information, we can conclude that The first three days of embryonic development occur in the fallopian tube as the embryo moves from the ovary to the uterus. Cell division continues and forms a hollow ball of cells (the blastocyst). Six days after fertilization, the embryo begins implantation into the lining of the uterus.

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4 0
1 year ago
According to Hess’s theory, what might happen if the magma under a mid-ocean ridge cools?
Anna [14]

Answer: The plates on either side of the ridge might stop moving.

Explanation:

7 0
2 years ago
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Which region is visible only on the posterior/dorsal body surface?
vesna_86 [32]
<span>Located down within the foot, the calcaneus is better known as the heel bone. It is situated in the back of the foot and it is here, in the calcaneal region that it is the only visible on the dorsal body surface.</span>
8 0
3 years ago
Which of these examples describes a pioneer species that is starting primary succession? A. ferns growing at the base of trees i
quester [9]

Answer:

B. grass growing on a newly formed dune

Explanation:

The primary succession is a process that occurs on newly formed environments. In this case, we have a newly formed dune. The dune is consisted only of sand, and it has no vegetation on it. If a grass manages to grow on the dune, than it will be a pioneer species as there are no other species present, thus it will start the primary succession on the dune. As the grass spreads out, it will create more and more biomass, as well as releasing certain chemicals in the dune, thus starting to create a soil, which in turn will provide conditions for more species to move in and start the second succession.

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