Biological Arts

02/03/2026

When art and biology meets...🦠🧬🧫☣️
Biological Arts

31/01/2026

Diagram of Ectocarpus sp. (brown algae)

Ectocarpus is a cosmopolitan brown algae found worldwide in marine environments, especially colder seas, growing attached to rocks (lithophyte), other algae (epiphyte), or even fish (epizoic), with some species in freshwater or free-floating, common in intertidal zones.

24/01/2026

Diagram of Chara species, a green algae.

Found in submerged in shallow, hard freshwater habitats, including ponds, lakes, tanks, and slow-moving streams, typically attached to muddy bottoms.

31/12/2025

31/12/2025

Paragraph Writing For Class II.... 🌟📚👍💫🎉

30/12/2025

Average Atomic Mass: The average
atomic mass of an element is calculated by taking the weighted average of the atomic masses of its isotopes, considering their relative abundance.

For instance, Chlorine has two isotopes: CI-35 with a relative abundance of 75% and CI-37 with a relative abundance of 25%. This information is correct.

Calculation: To calculate the average
atomic mass, the formula is: (Mass of isotope 1 x Fractional abundance) + (Mass of isotope 2 x Fractional abundance). The fractional abundance is the percentage divided by 100.

Substituting the values: (35 x 0.75) + (37 x 0.25). Performing the calculation: 26.25 + 9.25 = 35.5 u. Therefore, the average atomic mass of chlorine is 35.5 u.

30/12/2025

Sound waves:
Sound waves are mechanical waves that require a medium to propagate. They travel in forms of compressions and rarefactions in solids, liquids, and gases.
The speed of sound depends on the properties of the medium, such as temperature, density, and elasticity. For example, sound travels faster in solids than in liquids and gases.

Frequency:
Frequency is the number of wave cycles that pass through a point in one second. It is measured in Hertz (Hz).
Higher frequencies correspond to higher-pitched sounds, whereas lower frequencies correspond to lower-pitched sounds.

Wavelength:
Wavelength is the distance between two consecutive points in phase, such as two crests or two troughs, in a wave.
It is inversely proportional to frequency, meaning that as the frequency increases, the wavelength decreases.

Applications:
The concept of sound wave frequencies is widely used in acoustics, communication systems, and musical instruments.

Examples include ultrasound imaging in the medical field, sonar systems in navigation, and audio devices.

Frequency formula:
The relationship between speed, wavelength, and frequency is given by the formula: f = v / λ.
This formula is derived from the general wave equation.
When the speed of sound is constant, the frequency and wavelength are inversely proportional.

Examples of sound frequency:
Audible sound: Humans can hear sound frequencies between 20 Hz to 20,000 Hz.

Infrasound: Frequencies below 20 Hz are called infrasound and are used in seismic studies.

Ultrasound: Frequencies above 20,000 Hz are used in medical imaging and industrial applications.

19/12/2025

For Class I paragraph writing...

31/10/2025

Which of the following is an actinomorphic flower?
A. Datura
B. Casia
C. Pisum
D. Sesbania

Actinomorphic flower:
An actinomorphic flower is a radially symmetrical flower that can be divided into two equal halves by any vertical plane passing through its center.
Example- Lily, Buttercup, Datura, Chilli, Mustard

30/10/2025

✔️ Fact check:
The capacity to generate a whole plant from any cell of the plant is called totipotency. ✌️💯
🟩Know more ⤵️
Totipotency is the ability of a single cell to divide and differentiate into a complete organism and all of its associated specialized cell types, including embryonic and extraembryonic tissues. This capacity is most prominent in early stages like the zygote but is also famously utilized in plants, where mature, differentiated plant cells can regenerate an entirely new plant under specific laboratory conditions.

30/10/2025

ENDOPHYTIC ALGAE 🦠🦠🧫
Endophytic algae are microscopic algae that live inside the tissues of other, larger host organisms, particularly seaweeds, without causing disease.
EXAMPLES- Ulvella leptochaete, Blastophysa rhizopus, and Bolbocoleon piliferum, Nostoc sp.

28/10/2025