Amphibians are a class of animals like reptiles, mammals, and birds. They live the first part of their lives in the water and the last part on the land. When they hatch from their eggs, amphibians have gills so they can breathe in the water. They also have fins to help them swim, just like fish. Later, their bodies change, growing legs and lungs enabling them to live on the land. The word "amphibian" means two-lives, one in the water and one on land.
This lesson is all about amphibians. This lesson also covers how amphibians are classified into 3 groups: Anura, Caudata, & Gymnophiona. Also, this lesson concludes with the roles amphibians play in our ecosystems, ways we can help, population declination, with a summary to wrap it up.
Esta presentación ha sido elaborada para alumnos de 5º de Educación Primaria, en el área de Ciencias de la Naturaleza (Science). Con ella, podrán conocer los diferentes tipos de vertebrados que existen y poder estudiarlos de una forma motivadora y sintetizada.
Designed for kids to learn about frogs and their life cycles, as well as their habitats, characteristics, diet, etc.
Special mention of a few native New Zealand Frogs is made.
please respond In your own words not citations1. The Miami blu.docxSONU61709
please respond In your own words not citations
1. The Miami blue butterfly may be a little butterfly .The Miami blue butterfly can be found in tropical pine rock-lands, and beach side in Florida. The Miami blue was thought extinct until it was rediscovered in 1999 . In spite of many changes the Bahia Honda populace held on until 2010, when it vanished, maybe due to a combination of dry spell, cold temperatures, and being eaten by non-native green iguanas. They was rediscovered in Key West National Natural life Asylum in 2006. The are one of Florida most endangered species. I love butterflies because they're colorful with wings of distinctive patterns. I love how they change from caterpillars to cocoons to butterflies. Its so relate able to life , always changing and evolving . Its astonishing that the butterfly emerges from the unpleasant small caterpillar and shapes a cocoon and after that rises as a butterfly
2.Six families of dragonflies exist in Florida with most found near ponds and other freshwater sources. Dragonflies feature large eyes that make up most of their head and a muscular body that helps the insects use their large wings to fly. Sometimes you'll see dragonflies hovering near blacktop parking lots, but for the most part, the insects stay near water except when they look for a mate. They then return to the water to breed and deposit eggs.
Adult dragonflies will eat any insect as long as they can catch it. Dragonfly nymphs live in the water, and they usually wait on aquatic vegetation.
From the nymph stage to the adult stage, the dragonfly has a significant, positive ecological impact. Dragonfly eggs are laid and hatched in or near water, so their lives impact both water and land ecosystems. Once hatched, dragonfly nymphs can breathe underwater, and they use a motion similar to jet propulsion to move through their environment. This enables them to eat harmful aquatic organisms such as mosquito larvae. The nymph will continue contributing to this ecosystem for one to five years before becoming a mature adult. The adult dragonfly has enormous compound eyes that are useful in searching for flying insects. While flying, it uses its six legs to scoop food out of the air. Clasping the prey in its front legs, it then eats the insect in flight.
Dragonflies play ecological roles not only as predators but also as prey of birds, frogs, and other creatures. The presence of dragonflies indicates freshwater. One of the most useful dragonfly facts is that they reside low in the food chain, so a scientific study of their numbers and their health can reveal changes in water ecosystems more quickly than studying other animals or plants. Some national parks are beginning to use this species to survey and document the health of the park's water ecosystems. Since dragonflies eat mosquitoes and other insects, they help gardeners and outdoor enthusiasts. This also helps the environment because it allows humans to reduce the u.
This pdf is about the Schizophrenia.
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Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
A brief information about the SCOP protein database used in bioinformatics.
The Structural Classification of Proteins (SCOP) database is a comprehensive and authoritative resource for the structural and evolutionary relationships of proteins. It provides a detailed and curated classification of protein structures, grouping them into families, superfamilies, and folds based on their structural and sequence similarities.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
3. What are Amphibians?
Amphibians are a class of animals
like reptiles, mammals, and birds. They live the first
part of their lives in the water and the last part on
the land. When they hatch from their eggs,
amphibians have gills so they can breathe in the
water. They also have fins to help them swim, just
like fish. Later, their bodies change, growing legs and
lungs enabling them to live on the land. The word
"amphibian" means two-lives, one in the water and
one on land.
FLOURIE MAE O. OJALES
4. Where do they live?
Amphibians have
adapted to live in a
number of different
habitats including streams,
forests, meadows, bogs,
swamps, ponds, rainforests,
and lakes. Most of them like
to live in or near water and
in damp areas. FLOURIE MAE O. OJALES
5. What do they eat?
♥ Adult amphibians are
carnivores and predators.
They eat a variety of food
including spiders, beetles,
and worms. Some of
them, like frogs, have long
tongues with sticky ends
that they flick out to catch
their prey.
♥ The larvae of many
amphibians mostly eat
plants. FLOURIE MAE O. OJALES
6. The Class Amphibia (or amphibians) includes three
Orders:
Anura (frogs and toads) – about 5,800 species
Caudata or Urodela (newts and salamanders) –
about 580 species
Gymnophiona or Apoda (caecilians) – about 170
species
FLOURIE MAE O. OJALES
7. General Characteristics of Amphibians
They are ectotherms (often referred to as cold-
blooded). This means that amphibians do not
hold their body temperature constant like
mammals, but their internal temperature
depends upon that of the surrounding
environment.
Amphibians have soft, generally moist skin
without scales.
Their eggs do not have shells and so must be laid
in water or a damp environment to keep from
drying out.
Amphibians go through a two-stage life cycle.
When an amphibian hatches it is in a gilled larval
form. In frogs and toads this larva is called a
tadpole. After a few weeks or months the larvae
transform into the adult form, however it may still
take a few years to become mature.
FLOURIE MAE O. OJALES
8. Amphibians are important
and beneficial in many ways:
► They play an important role in nature as
both predator and prey, sustaining the
delicate balance of nature.
► They eat pest insects, benefiting
successful agriculture around the world and
minimizing the spread of disease, including
malaria.
► The skin of amphibians has substances
that protect them from some microbes and
viruses, offering possible medical cures for a
variety of human diseases, including AIDS.
► Frogs have had a special place in
various human cultures for centuries,
cherished as agents of life and good luck.
FLOURIE MAE O. OJALES
9. Fun Facts about Amphibians
♠ Most amphibians have thin, moist skin that
helps them to breathe.
♠ Amphibians are considered vertebrates as
they have a backbone.
♠ Frogs swallow their food whole. The size of
what they can eat is determined by the size
of their mouths and their stomach.
Frogs cannot live in salt water.
♠ All amphibians have gills, some only as
larvae and others for their entire lives.
♠ It is a myth that you can get warts from
touching a frog or toad.
♠ A group of frogs is called an army.
♠ An Amphibian's skin absorbs air and water.
This makes them very sensitive
to air and water pollution.
The world amphibian population is in decline.
FLOURIE MAE O. OJALES
10. Amphibians Facts 1: Group
Amphibians are categorized in three groups. Those are
caecilians, frogs and toads, and newts and salamander.
Amphibians Facts 2: Frogs and toads
Frogs and toads are included as the largest group in
Amphibians. They do not have tail but they have four legs.
There are many kinds of frogs that you can see spreading in
various rainforests. Most bright colored frogs are poisonous.
Amphibians Facts 3: Newts and salamanders
Newts and salamanders are different from frogs and toads.
They have four legs but with a long tail. Salamander will like to
spend most of their life in water. On the other hand, newts like
to live on land. They only go to the water when breeding.
Interesting Amphibian Facts
FLOURIE MAE O. OJALES