Answer:
A flexible connective tissue, known as cartilage varies from bones in many ways, its microcomposition is less developed in comparison to the bone and is avascular. It is not supplied with nerves and thus depends upon the process of diffusion to attain nutrients. The three kinds of cartilage are fibrous, hyaline, and elastic.
Of these the most widespread kind is the hyaline cartilage, it looks like glass. It is witnessed in embryos, where the formation of bone takes place as hyaline cartilage, which ossifies later. In adults, it is found on the tips of the ribs, on the articular surfaces of the long bones, the parts of the skull, and the rings of the trachea.
Fibrous cartilage is witnessed in the pubic symphysis and intervertebral discs and exhibits many collagen fibers.
Elastic cartilage is witnessed in the internal support of the external ear and the epiglottis and is yellow, springy, and elastic in characteristics.
They prey on urchins and thus control the number of kelp grazers. the kelp forest is much like a forest on land. they both have multiple layers. many organisms find protects embedded in the kelp to hide from their predators.
Explanation:
The most studied hemisphere has been the left, since most studies suggest that it is the dominant hemisphere.
It seems that the left hemisphere dominates on the right, and the right hemisphere on the left.
But this does not mean that both left-handed and right-handed people cannot develop the non-dominant hemisphere better, since as previously stated both are connected.
In fact, people who have a highly developed brain simultaneously use both hemispheres.
Note about the question:
Among the (observed-expected)² list, there is one value missing. This value corresponds to round yellow gray plants, and equals 0.002. <em>This number was included in the explanation of the problem. </em>
Answer:
The chi-square value is X² = 2.6813.
Explanation:
<u>Available information: </u>
Observed individuals numbers:
- Total number in the population: 639
- Round yellow gray 269
- round yellow-white 98
- round green, gray 86
- wrinkled yellow gray 88
- round green white 27
- wrinkled yellow white 34
- wrinkled green gray 30
- wrinkled green white 7
The expected numbers
- ratio 27:9:9:9:3:3:3:1
- round yellow gray 269.58
-
round yellow white 89.86
-
round green gray 89.86
-
wrinkled yellow gray 89.86
-
round green white 29.95
-
wrinkled yellow white 29.95
-
wrinkled green gray 29.95
-
wrinkled green white 9.98
The (observed-expected) ² numbers
- round yellow gray 0.002
- round yellow white 65.61
- round green gray 15.2
- wrinkled yellow gray 3.61
- round green white 8.41
- wrinkled yellow white 16.81
- wrinkled green gray 0.01
- wrinkled green white 9.00
To get the chi-square value, we just need to replace the terms in the following equation.
Chi square= ∑ ((O-E)²/E)
Where,
- ∑ is the sum of the terms
- O refers to the Observed number of individual
- E refers to the Expected numbers of individuals
X² = ∑ ((O-E)²/E)
X² = (0.002/269.58) + (65.61/89.86) + (15.2/89.86) + (3.61/89.86) + (8.41/29.95) + (16.81/29.95) + (0.01/29.95) + (9/9.98)
X² = 0.0000074 + 0.73 + 0.17 + 0.04 + 0.28 + 0.561 + 0.0003 + 0.9
X² = 2.6813
