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Lady bird [3.3K]
3 years ago
13

Double-layered sac. the innermost layer of this sac immediately surrounds the heart and is called the ____________________ peric

ardium (also called _______________). at the base of the heart, this inner layer folds back on itself to become the ________________ pericardium. between the layers of this sac is a potential space called the ______________ cavity and it is filled with _________ fluid. what is the function of this fluid?
Biology
1 answer:
dedylja [7]3 years ago
6 0
All i know is 'hat, it is composed of three layers
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Which of the following is the coenzyme that functions as an electron carrier in photosynthesis?
faltersainse [42]

Answer:

The correct answer is C. NADP⁺

Explanation:

NADP+ is the coenzyme that acts as the electron carrier during the photosynthetic process. The electron that is released from the splitting of water pass through the electron transport chain and at the end of the chain the electron is received by an electron carrier called NADP+.  

So this passing of electron causes the transport of H ions in the thylakoid lumen from the stroma and when these ions come back through ATP synthase it forms ATP. Then these NADPH and ATP are used in the Calvin cycle to fix the CO2 into complex form. Therefore the correct answer is C. NADP⁺.

8 0
3 years ago
*EXTRA PTS* How much weight is needed for a 10 m high ball to achieve 400 J of potential energy?
mafiozo [28]

Answer:

,Mass of the Body = 10 kg.

Height = 10 m.

Acceleration due to gravity = 9.8 m/s².

Using the Formula,Potential Energy = mgh

= 10 × 9.8 × 10 = 980 J.

(b). Now, By the law of the conservation of the Energy, Total amount of the energy of the system remains constant.

∴ Kinetic Energy before the body reaches the ground is equal to the Potential Energy at the height of 10 m.

∴ Kinetic Energy = 980 J.

(c). Kinetic Energy = 980 J.

Mass of the ball = 10 kg.

∵ K.E. = 1/2 × mv²

∴ 980 = 1/2 × 10 × v²

∴ v² = 980/5

⇒ v² = 196

∴ v = 14 m/s.

7 0
3 years ago
Read 2 more answers
Although iodine is a trace element, its deficiency may result in metabolic
Montano1993 [528]

answer is no. 2

false.

n

8 0
3 years ago
Witch is an' embryonic germ layer that gives rise to the muscular skeletal circulatory systems of a human?
Firlakuza [10]
D) Mesoderm is the answer 
7 0
3 years ago
DNA polymerase I, from E. coli, has three different catalytic sites. Which of the following is NOT one of them?
Leokris [45]

Answer:

RNA-dependent RNA polymerase.

Explanation:

DNA polymerase I is present in E.coli that are responsible for the prokaryotic DNA replication. The DNA polymerase I was discovered by Arthur Kornberg. This enzyme is coded by the gene polA.

DNA polymerase I has the activites of  DNA-dependent RNA polymerase, DNA-dependent DNA polymerase and RNA-dependent DNA polymerase. The  RNA-dependent RNA polymerase is generally present in the reverse transcriptase in case of viruses only. RNA-dependent RNA polymerase catalytic site is not present in DNA polymerase I.

Thus, the correct answer is option (1).

5 0
4 years ago
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