Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites.
<h3>What are viruses bacteria and parasites?</h3>
Viruses, bacteria, and parasites live organisms that are found all around us. they're in water and soil. they're on the surfaces of foods that we eat. they're also on surfaces that we touch, like Counter top in the bathroom or kitchen. Some bacteria sleep in and on our bodies and don't cause problems.
<h3>Which are infectious diseases?</h3>
The flu, measles, HIV, streptococcal sore throat , COVID-19 and salmonella are all samples of infectious diseases. Cancer, diabetes, congestive coronary failure and Alzheimer's disease are all examples of noninfectious diseases.
What are the causes of disease?
Similarly, diseases are caused by different microorganisms and may be classified as diseases caused by bacteria, fungi, viruses etc. Some diseases also are caused by multicellular organisms such as worms.
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Answer:
The number of electrons in an atom's outermost valence shell governs its bonding behaviour. Elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. ... To form a covalent bond, one electron from the halogen and one electron from another atom form a shared pair.
I think it's b. Or c. Sorry if it's wrong but I'm pretty sure it's one of those
Answer:
1. High osmotic pressure due to the hypersaline nature of marine habitats
2. The dependence of flowering plants on pollinating insects for fertilization. These insect pollinators are however, absent in the marine environment.
3. Competition from already-established sea weeds and grasses provides another challenge to flowering plants invadingnthe oceans.
4. Constant changes in the environment as well as temperature changes too
Explanation:
The marine environment is a hypersaline environment with a high salt concentration relative to that of the plant cell. Due to high salt concentration of the marine environment, their is high osmotic pressure on living oragnisms found therein. Organisms must have well-adapted osmo-regulatory mechanisms to counteract the high osmotic pressure of their environment. Therefore, flowering plants face the challenge of removing excess salt from their cells or else lose water to their environment, hence resulting in the death of the plant. However, most flowering plants lack this ability and thus, have found it difficult to invade the oceans.
Flowering plants depends on insect-pollinators for fertilization. However, these insect are not found in the oceans, and as such, it is difficult for flowering plants to invade the oceans.
Well-adapted seaweeds and grasses serve as competitors for any invading flowering plant. Since the flowering plants are not yet adapted for life in marine habitats, they lose out in this competition.
The oceans are constantly in a state of frequent turbulence and change due to tides and currents. Also, the temperature of the oceans are very low and fluctuations in the temperatures of the ocean do occur, utimately serving as obstacles to invading flowering plants to adapt to life in the oceans and seas.
Answer:
Mouth, Small intestine, Large intestine, Rectum and blood capillaries
Explanation:
The five organs could be
A) mouth
B) small intestine: small intestine has three parts: the duodenum (attached to the stomach), the jejunum (the middle portion)
C) Large intestine
D) rectum and
E) placed capillaries and lymphatic vessels on the small intestine.
