The example of an organism at the second trophic level is an eagle eating a mouse.
An example of an organism at the second trophic level is an eagle eating a mouse. At the second trophic level, organisms are considered primary consumers, as they consume producers such as plants or algae.
The second trophic level is comprised of herbivores. From the provided list, the only example of an organism at this level is a cow eating grass, as it directly consumes a primary producer.
In biology, a trophic level refers to the position an organism occupies in a food chain. The second trophic level consists of herbivores which are organisms that directly consume producers - often plants. The example of an organism at the second trophic level from your list is a cow eating grass. The cow, being an herbivore, falls under this category as it consumes grass, a primary producer. All other organisms listed are either producers (redwood tree), parasites (fish tapeworm) or carnivores (eagle, tiger), and therefore, do not belong to the second trophic level.
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Answer: The basic tissue structure of the mucosa layer of the alimentary canal consists of:
--> mucous membrane
--> lamina propria
--> muscularis mucosa
Explanation:
The MUCOUS MEMBRANE forms the innermost layer of the alimentary canals which includes the stomach and the duodenum (small intestine) . It's major functions is protection, secretions and absorption. The type of mucous membrane found in the stomach and duodenum is the Columnar epithelial cells. Not numerous gastric glands are situated below the surface in the mucous membrane of the stomach. They consist of specialised cells that secrete gastric juice that aids in the digestion of food. While the duodenal mucosa consists of mucous producing goblet cells. These cells produce a viscous, alkaline mucus that protects against the acidic gastric juices and pepsin. The folding of these mucosal cells (microvilli) provides a large surface area to optimize nutrient absorption.
The LAMINA PROPRIA: This layer separates the mucous membrane and the muscularis mucosa. It is made up of connective tissues which supports the blood vessels that nourishes the inner epithelial layer. In both the stomach and duodenum, digested nutrients are absorbed into the capillaries.
MUSCULARIS MUCOSA: This is made up of thin layer of smooth involuntary muscles. The contraction and relaxation of these muscle layers occurs in waves, which push the contents of the tract onwards. This type of contraction is called peristalsis which occurs in the duodenum. While in the stomach, these muscles allows for the churning motion characteristic of gastric activities.
The mucosa layer in the alimentary canal comes into direct contact with food and consists of three layers: epithelium, lamina propria, and muscularis mucosae. The stomach mucosa secretes mucus, hydrochloric acid, and digestive enzymes, while the duodenum's mucosa contains glands that neutralize stomach acid, protecting the intestinal wall and enabling absorption.
The mucosa layer in the alimentary canal is the innermost layer that comes into direct contact with food. This layer consists of three sublayers: epithelium, lamina propria, and muscularis mucosae. The epithelium is made up of simple columnar cells responsible for secretion and absorption. The lamina propria is composed of loose connective tissue supporting the epithelium, and the muscularis mucosae is a thin layer of muscle that causes local movement of the mucosa.
The mucosa in the stomach has a special epithelium that secrets mucus, hydrochloric acid, and digestive enzymes, aiding in both protection and the breakdown of food. Its unique feature is the presence of gastric pits and parietal cells that secrete hydrochloric acid.
In contrast, the mucosa in the duodenum, part of the small intestine, contains Brunner's glands which produce an alkaline secretion rich in bicarbonate and mucus. The purpose of this is to neutralize stomach acid and protect the intestinal wall, enabling absorption to take place.
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O B. Natural selection is the idea that species change over time, and evolution is the idea that our world c
O C. Natural selection is the idea that species change over time, and evolution is the idea that the species
O D. Evolution is the idea that snecies change nyer time and natural colo
Explanation:
A. Evolution is the idea that species change over time, and natural selection is the idea that nature cha
Answer:
Explanation:
Viruses are a limitation to cell theory.
According to cell theory, all cells arise from pre - existing cells. But viruses lack any membranes and do not show the characteristics of life unless they enter a living body and use its cell machinery to multiply.
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Venus - 108.2 million kilometers
Earth - 150 million kilometers
Mars- 227.9 million kilometers
Jupiter- 778.5 million kilometers
Saturn- 1.434 billion kilometers
Uranus- 2.871 billion kilometers
Neptune - 4.495 billion kilometers
Answer: See Below
Explanation:
25,000,000km = 1cm
In other words 25 million km = 1 cm
Mercury- 57.91 million kilometers
57.91 million km * 1 cm/ 25 million km = 57.91/ 25 cm = 2.3164 cm
Venus - 108.2 million kilometers
108.2 million km * 1 cm/ 25 million km = 108.2 /25 cm =4.328 cm
Earth - 150 million kilometers
150 million km * 1 cm/ 25 million km =150/25 cm = 6 cm
Mars- 227.9 million kilometers
227 .9 million km * 1 cm/ 25 million km = 227.9/25 cm =9.116 cm
Jupiter- 778.5 million kilometers
778.5 km * 1 cm/ 25 million km = 778.5/25 cm =31.14 cm
Saturn- 1.434 billion kilometers
1.434 billion * 1000 million/1 billion = 1434 million
= 1434 million km * 1 cm/ 25 million km =1434/25 cm =57.36 cm
Uranus- 2.871 billion kilometers
2.871 billion * 1000 million/1 billion = 2871 million
2871 million km * 1 cm/ 25 million km =2871/25 cm =114.84 cm
Neptune - 4.495 billion kilometers
4.495 billion * 1000 million/1 billion = 4495million
4495 million km * 1 cm/ 25 million km =4495/25 cm =179.8 cm
Answer: The Leber's hereditary optic neuropathy (LHON) is caused by defective genes contained in mitochondrial DNA.
Explanation:
LHON is causes the vision loss. This occurs due to mutation in the mitochondrial DNA. The symptoms are not associated vision loss thus it is difficult to predict that which member of family was the carrier of the disease. Some people do not get completely blind. A young male is expected to develop a risk of 50% development of this disease.