Category: Biology

This is your time to continue our story by creating a fictional character from the Biosphere to join the other characters.

Respond to the following in a minimum of 175 words.

• Who will your character be? Is it an element? A molecule? An animal? Or something else? What is your characters name and characteristics?
• Write a birth announcement for your character to introduce the character to the world. Include the characters origin, make up, and facts about it on Earth.
• Describe a short story about your character living and existing in the biosphere.

Plants use sunlight, water, and carbon dioxide to create oxygen and energy-rich sugar (glucose).

I am deevya and I am preparing for my next 11th class and I want to make same money so I came in this app

Bidder’s canal is a specialized structure found in a kidney of male frog, playing crucial role in both reproductive and excretory system.

WHAT LIVING IS ? When we try to define living we conventionally look for distintive characteristics exhibited by living organisms growth reprodution ablity to sense environment and mount a suitable response come to our mind immediately as unique features of living organisms like metabolism ablity to self replicate self organise and interact BIODIVERSITY 1 . occurrence of the number and types of organisms present or earth is called biodiversity The number of species that are known and described range between 1.7-1.8 million each different kind of plant animal or organism that you see represents a species OTHER UNIVERSAL RULES OF NOMENCLATURW ARE AS FOLLOWS : 1 . biological names are latin and written in italis they are latinised or derived from latin irrespective of their origin 2 . The first word in a biological name represents the genus while the second component denotes the specific epithet 3 . Both the words in a biological name , when hand written are separately underlined or printed in italics to indicate their latin orign

WHAT IS ENDO AND EXO NUCLIES WHAT IS DNA FINGER PRINTIG USES AND HOW THEY WORKS

Penicillium reproduces asexually by conidia formation, which are non-motile spores produced singly or in chains by the constriction of tip of hyphal branches. These spores germinate by giving out germ tubes.

Chewing is a voluntary, mechanical process that breaks down food using teeth, whereas salivation upon seeing food is an involuntary, autonomic reflex. Chewing occurs when food is inside the mouth, but salivation on sight is a preparatory (cephalic) phase triggered by sensory input before consumption.

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Key Differences:

Process Nature: Chewing is a conscious, voluntary motor action, while salivation on sight of food is an involuntary reflex mediated by the nervous system.

Trigger Mechanism: Chewing requires the physical presence of food (mechanical stimulation), whereas salivation on sight is triggered by sensory cues like smell, sight, or thought (cephalic phase).

Primary Function: Chewing mechanically breaks down and mixes food with saliva, whereas salivation prepares the mouth for food ingestion by lubricating oral tissues and beginning chemical digestion.

If food goes down the trachea or wind pipe instead of the food pipe or oesophagus, the person is not able to breathe and starts choking.

Our trachea (wind pipe) and oesophagus (food pipe) are joined near the top and separate as we go down towards the diaphragm. A thin flap of cartilage called the epiglottis usually covers the trachea while we are swallowing, so that food does not move inside the wind pipe.

However under certain conditions like swallowing too fast, talking or not chewing the food properly, some of it may enter the trachea. This may cause the airways to get partially blocked, which is called as choking. Total blockage may result in the death of the individual.

Our nervous system responds immediately to the situation by trying to eject the food. This is done by tightening the muscles between the ribs, above the oesophagus and by expanding the cavity of the throat.

When you hold your breath, which of the following gas charges in blood would first lead to the urge to breathe?

(a) Falling CO2 concentration

(b) Rising CO2 concentration & falling O2 concentration

(c) Falling O2 concentration

(d) Rising CO2 concentration