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qaws [65]
3 years ago
10

What is the double-walled sac that surrounds the heart called?.

Biology
1 answer:
Law Incorporation [45]3 years ago
8 0

Answer:

A double-layered membrane called the pericardium surrounds your heart like a sac. The outer layer of the pericardium surrounds the roots of your heart's major blood vessels and is attached by ligaments to your spinal column, diaphragm, and other parts of your body.

Explanation:

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Why is there so much diversity on Earth
Damm [24]

Answer:

There is a great deal of diversity in life on Earth because the planet has so many different climates that life has adapted to and colonized.

Explanation:

5 0
3 years ago
Which of these planets has water ice near its poles?
sergejj [24]

Answer:

Mars

Explanation:

The Deep Freeze: Ice on Mars. Like Earth, Mars has ice caps at its poles. Water reaches the poles as vapor and is frozen into thin layers that build up thick deposits. Mixed with this water is dust picked up by the wind, so the caps have bright and dark layers of "clean" and "dirty" ice.

5 0
3 years ago
Consultation and testing by trained experts that enable individuals to learn about their genetic heritage, including harmful con
Luden [163]

Answer:

Genetic counseling

Explanation:

If an individual suspected an inherited disorder(usually dangerous) in the parents, or partner's family  and wish to <u>find out or investigate the pattern of inheritance,</u> or t<u>he likelihood of manifesting this conditions later in life</u>,<u> or the chances of the partner passing this down to their offspring</u>, then the expert to visit is  a genetic Counsellor, while the term to describe the genetic  enquires is called genetic counseling. The Counsellor also provides the necessary emotional support that the investigator may need after the discovery.

<u>Besides the above reason, Genetic counseling is also important for</u>

1.How and when to plan a baby ,if the birth is suspetabe to a disorder

2.the type of genetic screening test to go for,

3. how to protect the child and the mother during pregnancy,incase a disorder is already present,

4. to understand family history and to secure the future of the marriage.

5. the necessary safety and curative measures to give the child after birth.

Genetic Counsellors are certified expert with additional master degree in Genetic counseling.

7 0
3 years ago
PLSSSSSSSSSS HELPPPPPPPP PLSSSS HELPPPP I NEED HELP PLS NO LINKS PLSSS I REALLY NEED HELPPPP
Masteriza [31]

Answer:

Allele G represents the strong jaw, and allele g represents the weak jaw. This is because as the generations go by, allele G’s population increases, but allele g’s population decreases. If hard shelled animals are the only foods available to them, you would need a strong jaw to eat them. This means that allele g wouldn’t be able to eat these reptiles, so their population would decrease from lack of food.

Explanation:

8 0
3 years ago
For this assignment, you will write an essay describing the production of protein molecules through transcription and translatio
Trava [24]

<span>.        Messenger RNA (mRNA) is synthesized from a gene segment of DNA which ultimately contains the information on the primary sequence of amino acids in a protein to be synthesized. The genetic code as translated is for m-RNA not DNA. The messenger RNA carries the code into the cytoplasm where protein synthesis occurs. The cell does not contain large quantities of mRNA. This is because mRNA, unlike other RNAs is constantly undergoing breakdown. 

2.       In the cytoplasm, ribsomal RNA (rRNA) and protein combine to form a nucleoprotein called a ribosome. The ribosome serves as the site and carries the enzymes necessary for protein synthesis. The ribosome attaches itself to m-RNA and provides the stabilizing structure to hold all substances in position as the protein is synthesized. Several ribosomes may be attached to a single RNA at any time.   </span>
<span>
3.       Transfer RNA (tRNA) contains about 75 nucleotides, three of which are called anticodons, and one amino acid. The tRNA reads the code and carries the amino acid to be incorporated into the developing protein. Part of the tRNA doubles back upon itself to form several double helical sections. The tRNA "reads" the mRNA codon by using its own anticodon. The actual "reading" is done by matching the base pairs through hydrogen bonding following the base pairing principle. Each codon is "read" by various tRNA's until the appropriate match of the anticodon with the codon occurs.</span>

4 0
3 years ago
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