Which best describes the pericardium?
Answers
The Pericardium keeps the heart in place and in proper working order. Any disorders that occurs in the pericardium will also affect how the heart works.
Inflammation of the pericardium may be a result of infection, heart attack, heart surgery, and other medical side effects.
Final answer:
The pericardium or pericardial sac is a membrane that surrounds the heart, consisting of the fibrous pericardium and the serous pericardium. The serous pericardium further has a parietal layer and a visceral layer or epicardium, which secretes a lubricating fluid.
Explanation:
The pericardium, also known as the pericardial sac, is a membrane that directly surrounds the heart and defines the pericardial cavity. It consists of two distinct sublayers: the sturdy outer fibrous pericardium and the inner serous pericardium. The fibrous pericardium, made of tough, dense connective tissue, protects the heart and maintains its position in the thorax. The serous pericardium has two layers, namely the parietal pericardium, which is fused to the fibrous pericardium, and an inner visceral pericardium, or epicardium, which is fused to the heart.
The macroscopic epicardium layer consists of a simple squamous epithelium called a mesothelium, reinforced with loose, irregular, or areolar connective tissue that attaches to the pericardium. This mesothelium secretes the lubricating serous fluid that fills the pericardial cavity and reduces friction as the heart contracts.
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Related Questions
____ is a process by which organisms with characteristics suited to the environment will survive and reproduce. a. natural selection c. evolution b. artificial selection d. organic evolution
Which of the following ideas is supported by Darwin's observations of local variation among tortoises in the Galapagos islands?A: artificial selection B: adaption C: acquired characteristics D: tendency towards perfection
Which change to one of the kits would make it useful for modeling proteins? a.Set 1, add a box for phosphorous (P) atoms. b.Set 2, add a box for sulfur (S) atoms c.Set 3, replace the box of phosphorous (P) atoms with a box of sulfur (S) atoms d.Set 4, replace the box of oxygen (O) atoms with a box of nitrogen atoms (N)
CANT GET WRONG , ITS LIKE A WORK BANK BUT DONT KNOW WHAT ITS CALLED.In any family, the children may or may not look like their parents. They may or may not look like their siblings. That's because each one of us inherit half of our chromosomes from our mother and half from our father. What assortment of we get varies from child to child. Our chromosomes contain many genes, and each gene codes for a specific trait. The traits people see, like eye color hair color, or height, also depend on whether the gene is dominant or recessive. In this family, brown hair is dominant over red hair. It is very possible that these two parents could only have children with brown hair! It is also possible that their children all have red hair! Why? First, to inherit a recessive trait like red hair, you must have two genes for red hair color. Because one parent, the mother, has red hair we know the mother must have two genes for red hair. The father has brown hair. We know he must have at least one gene for brown hair but he also has one gene for red hair. What two genes will their children have? It's a matter of probability. Each child has a 100% chance of inheriting the red hair gene from their mother and a 50% chance of inheriting the red hair gene from dad. That means, all the children will have at least one gene for red hair! 1.Where do our chromosomes come from? (Twelve word phrase) 2.What codes for each specific trait? (One word) 3.In this family, what is the dominant hair color? (Two words) 4.In this family, each child has a _______ chance of inheriting one gene for red hair. (Percentage) 5.What combination of genes you receive from your parents is a matter of ______________. (One word)
0 2
1 6
2 18
Write an exponential function to represent the spread of Ben's social media post.
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N(0) = 2 x 3^0 = 2
N(1) = 2 x 3^1 = 6
N(2) = 2 x 3^2 = 18
An exponential function is represented by:
y = ab^x
where a is the initial value and b is the growth rate.
The exponential function for this case would be:
y = 2(3)^x
y = 6^x
Answer:
Explanation:
The general exponential function is written as :-
,where y is the amount of the material after t years , A is the initial amount and b is the multiplicative rate of growth.
From the given table, the number of shares on day 0 = 2 .
Thus the initial number of shares = 2
The growth factor is given by the ratio of the consecutive terms :-
Now, put A = 2 and b = 3 in (i), we get
∴ The exponential function to represent the spread of Ben's social media post is
True or false?
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Answer:1. True
2. True
3. False
4.; True
5. False
6. False
7. True
8. True
9. False
10. False
Explanation:
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In the alternation of generations, there is alteration between two generations - haploid gametophyte and diploid sporophyte. Gametophyte produces haploid gametes which fuse to form a diploid zygote. Therefore, gametophyte reproduces with gametes. The zygote grows into diploid sporophyte which produces haploid spores. Sporophyte reproduces with spores, and new gametophyte develops.
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I mean if you look at rRNA which is needed to make polypeptide chains, it is 2/3 protein, and then the helices, ss binding proteins, DNA polymerase and everything in transcription is protein.
So that last option/ third option is the best
Answer:
C. This statement is true because every step in protein synthesis requires enzymes, which are nothing but proteins.
Explanation:
Got it Right on Plato
Answers
B. carry water and nutrients between roots and leaves.
C. store carbohydrates.
D. store water.
Answers
One of the three main functions of stems is to carry water and nutrients between roots and leaves. So, the correct option is B.
What is Stem?
The stem is defined as the axis of the plant that bears buds and shoots with leaves and, at its basal end, roots that conduct water, minerals, and food to other parts of the plant, which store food and the green stem itself produces food.
Stem is explained as the aerial part of the plant which contains leaves, fruits, branches and flowers. The stem is positively phototropic and negatively geotropic where as the leaves contain chlorophyll so that the plant can make food. The main functions of stems is to carry water and nutrients between roots and leaves.
Therefore, the correct option is B.
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one of the three main functions of stems is to carry water and nutrients between roots and leaves