Answer:
Charles Darwin was the man who came with the theory of natural selection. He witnessed finches within the Galapagos Islands and made notes on the similarities and differences of the finches across the group of islands. Each of the islands comprises finches, which were identical, however distinct in different ways.
Darwin found that the finches appeared to vary on the basis of the food sources available on each of the islands. If the prime food were seeds, the finches seemed to possess thicker beaks in order to break the seeds so that they can consume them.
On the other hand, if the prime food sources were insects, then the finches seemed to exhibit smaller and pointer beaks so that they could hold the insects readily. In this way, there is unity in diversity. All of these birds are finches and exhibited a common ancestor from which they have originated into the distinct species as mentioned.
Their variations lie in the habitats, in which they now inhabit. They had to amend with their environments in order to thrive, thus, offering diversity to unity.
Answer:
c. 1:2:1
The results are consistent with incomplete dominance for this trait, with pink flowers being heterozygous.
Explanation:
If flower color were determined by a gene showing incomplete dominance, the possible genotypes and phenotypes are as follows:
- RR- red
- ww - white
- Rw - pink
If pink sweet peas are self-pollinated, then a cross between two heterozygous individuals is done (Rw x Rw).
<u>From this cross the expected ratios are:</u>
- 1/4 RR (red)
- 2/4 Rw (pink)
- 1/4 ww (white)
So the null hypothesis is that the observed results exhibit a 1:2:1 ratio.
<h3><u>Chi square test</u></h3>
<u>The observed frequencies were:</u>
Total 150
<u>The expected frequencies for our null hypothesis are:</u>
- 1/4 x 150 = 37.5 Red
- 2/4 x 150 = 75 Pink
- 1/4 x 150 = 37.5 white
The degrees of freedom (DF) are calculated as number of phenotypes - 1; in this case DF = 3-1 = 2.
If we look at the Chi square table, for 2 DF and a probability of p0.05, the critical value is 5.991
Our X^2 value of 0.5067 is less than the critical value, so we do not reject the null hypothesis. The results are consistent with incomplete dominance for this trait, with pink flowers being heterozygous.
The different types of the Connective tissue are the Cartilage, Bone Tissue, White Adipose Tissue, Fascia, Fibrocartilage, Hyaline Cartilage, Elastic Cartilage, Costal Cartilage, Brown Adipose Tissue, and Adventitia....
Cartilage- Found in the Joints between bones, the elbow, your knees and ankles, the vertebrae, and on the end of ribs
Bone Tissue- Bone Tissue is found in small blood vessels, epithelium, and the nerves.
White Adipose Tissue- Is located beneath the skin, around internal organs, in bone marrow, and the breast tissue
Fascia-<span>This is the dense fibrous connective tissue that interpenetrates and surrounds the muscles, bones, nerves and blood vessels of the </span>body<span>. This suspends the organs within their cavities and wraps them in layers of connective tissue membranes.
Fibrocartilage- Found in the public </span>symphysis, the anulus fibrosis of intervertebral discs.
Hyaline Cartilage- Found in the Bronchi, bronchial tubes, costal cartilages, larynx, nose, and the trachea.
Elastic Cartilage- Found in the Epiglottis, and the Pinnae.
Costal Cartilage- Found at the anterior ends of the ribs.
Brown Adipose Tissue- Found in Neonates, brown fat<span> makes up about 5% of the body mass and is </span>located<span> on the back, along the upper half of the spine and toward the shoulders.
Adventitia- Is found in the Connective System and in the nerves.....
I hope this helps with this question you asked!!! It states the different types of the connective tissue and where they can be found!!!! Have a great </span>day!!!
Answer:
social facilitation
Explanation:
The concept of social facilitation was first proposed by Norman Triplett. After observing a cycling event, in which he noticed that cyclist performed better when they have others around competing with them, rather than cycling alone just against time. This led him to duct an experiment where he gave some children strings to wound fishing reel. He observed that, children wound the fishing reel faster in the presence of other children performing similar task, when compared to when perform such task alone.
This concept discovered by Norman Triplett, best illustrates the concept of social facilitation, which posits that, individuals tend to perform better in the mere presence of others or when they perform a task with others, than when performing the task alone.
Hi, what are the “following” options? I’d love to help! Thanks. :)
