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Charra [1.4K]
3 years ago
6

The model shows part of a process that uses tRNA. Which description explains the role of the tRNA in the

Biology
1 answer:
ladessa [460]3 years ago
6 0

Answer:

a. The model delivers amino acids to the ribosome so they can

be added to the developing pepetide.

Explanation: tRNA is transfer ribonucleic acid. Its help to aid translation process. They have the appropriate anti codon that is a complement of mRNA i.e messanger RNA they Therefore give the appropriate amino acids to ribosome to form the appropriate polpeptide chain. Each amino acid has its own tRNA.

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The knee ________.
andreyandreev [35.5K]

Answer:

The correct answer is: C) has ligaments present inside as well as surrounding the articular capsule.

Explanation:

<u>The knee joint is a hinge (ginglymus) type synovial joint</u> that is formed by three different bones: the femur, the tibia, and the patella.

Given the nature of the hinge joint, it should only allow flexion and extension, but it also grants a small degree of internal and external rotation. For this reason, the knee joint cannot be considered a multiaxial joint, since it only fully moves in one axis and slightly moves in a second one (this is why most people consider the knee joint a uniaxial joint, but some others say it is actually a <u>biaxial one</u>).

The knee joint isn't completely enclosed by a strong articular capsule. The knee joint is rather thin and it contains the patella, menisci, bursae, and ligaments of the knee.

The knee is not the simplest joint in the body. It is formed by three bones and there's also the menisci, which are fibrocartilaginous structures that help increase the stability of the joint and act as shock absorbers as well.

The knee does have ligaments both inside and outside the articular capsule. The intracapsular ligaments are two cruciate ligaments (one anterior and one posterior), which hold the tibia in place; the transverse ligament that connects both menisci; and the posterior and anterior meniscofemoral ligaments. The extracapsular ligaments are the patellar ligaments (connects the patella to the tibia), the two collateral ligaments (medial and fibular, one on each side of the knee, connecting the femur to the tibia and to the fibula, respectively), and the anterolateral ligament.

3 0
3 years ago
Describe the neural and hormonal mechanisms that work to maintain blood pressure after significant (hemorrhaging) blood loss ass
Bad White [126]

Autoregulatory neural and endocrine mechanisms activate after blood loss to compensate for the loss and restore homeostasis.

Neural mechanisms involve blood pressure and blood chemistry. Cardiac centers and vasomotor centers may increase the blood flow and cardiac output (sympathetic) or decrease the blood flow and cardiac output (parasympathetic). Peripheral vessels are also constricted and nor epinephrine decreases flow in the arteries and decreases the flow in the veins.

Endocrine control acts in the renal and adrenal organs, the brain and heart. RBCs, renin/angiotensiogen/aldosterone, catecholamines, antidiretic hormone, atrial natriuretic hormone regulate blood volume and blood pressure by keeping the fluids in the cardiovascular system. It also initiates vasoconstrictors or vasodilators.

8 0
3 years ago
PLEASE HELP ( REALLY EASY ) Since we cannot see magnetic forces, what do scientists and engineers use to show them on a magnetic
sergij07 [2.7K]

A compass  

The Earth's magnetic field, provided by the magnet in a compass, shows the direction of the north and south poles.

ANSWER MADE BY AN AI

6 0
2 years ago
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Neptune can be divided into a total of ______________ different layers.
Leona [35]
Four; the upper atmosphere, the atmosphere, the mantle, and the core.
6 0
3 years ago
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Perspiration leaves the body through the _____.
nata0808 [166]
Sweat glands. :)
Perspiration leaves the body through the sweat glands.
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3 years ago
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