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ryzh [129]
3 years ago
6

The Earth's core is

Biology
1 answer:
Oliga [24]3 years ago
3 0
D is the answer because I used google and it said it’s right
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3 0
3 years ago
What is adolescence age
marta [7]
Roughly ages 10-19 but could even be considered 21
3 0
4 years ago
Summarize the process of fertilization and implantation.
Aneli [31]
The process of fertilization involves the deposition of sperms into the vagina to the egg cell during sexual intercourse. Sperms make their way towards the cervix and uterus, and eventually goes to the fallopian tubes. <span>Only a few hundred will remain as they interact with the egg through the use of their heads and movement patterns.

</span><span>The process of implantation happens when the embryo, the fertimized eggs develops inside the fallopian tube after three days, and then travels to the uterus.</span>
7 0
4 years ago
Deuterium is an isotope of hydrogen. It has a mass number of two. Which describes a deuterium atom?
torisob [31]

Answer:

Deuterium, (D, or 2H), also called heavy hydrogen, isotope of hydrogen with a nucleus consisting of one proton and one neutron, which is double the mass of the nucleus of ordinary hydrogen (one proton). Deuterium has an atomic weight of 2.014

Explanation:

6 0
4 years ago
What are the levels of protein structure and what role do functional groups play?
umka2103 [35]
The levels of protein structures are: PRIMARY, SECONDARY AND TERTIARY STRUCTURES.
The amino acid sequence and the bonding types between the amino acids determine the structures of proteins. Protein structures also determines the function of a protein, if a protein losses its structure it will not be able to perform its function again.
Functional groups play an important role in the formation of protein structure.Functional groups also participates in specific biochemical reactions in the body thus enabling the proteins to perform their functions. 
8 0
3 years ago
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