Sunday 27 January 2013

Monday 20 August 2012

Johnna Akers

21.
Salt relates to hydrophilic because salt is very attracted to water. Hydrophilic molecules have an affinity for water. They are capable of interacting with water through hydrogen bonding.

22.
The moss on this rock is an example of a bryophyte, a plant that does not flower or contain vascular tissue for the transfer of water and other nutrients throughout the plant. Bryophytes reproduce using spores, not seeds, unlike other flowering plants do.

23.
A potato is a modified root of a plant because it is a tuber.  This means that it is used for storage.  Starch is stored in these tubers.  
24.
That is olive oil that is  from the pantry. It is hydrophobic because oils do not bond well with water; if you've ever mixed olive oil and water, the oil and water separate and the oil floats to the top. Hydrophobic means that a substance does not dissolve in water.   



25.

Eubacteria: mostly unicellular and does not have a nucleus. Eubacteria can be good when found in food and when breaking down food in our bodies, but they are bad if they are pathogens (in this case causing things such as tuberculosis or typhoid). This particular type of bacteria is found in food such as the cheese in this picture. 

Sunday 19 August 2012

Johnna Akers



16.
An animal with a segmented body worms are animals with segmented bodies. this means that thier bodies are divided into a series of repetitive segments.


17.
This is a chicken egg found in my refrigerator which is an example of an amniotic egg. Birds, such as chickens, and reptiles give birth through amniotic eggs which contain a yolk to nourish their young
18.
This mushroom is an example of mycelium. Mycelium is the mass of branched, vein-like filaments of fungi
19.
This top is an example of bilateral symmetry. This means that it can be divided into two matching halves by dividing down the center (ruler is used as a center line).

20.
Fermentation is conversion of carbohydrates to alcohols and carbon dioxide or organic acids using yeasts, bacteria, or a combination thereof, under anaerobic conditions. In order for chocolate to taste and smell like it does, the cocoa beans used to make the chocolate must be fermented for 2 to 7 days.








Johnna Akers


9.
An autotroph is an organism that can make its own food.  Any type of plant is an autotroph because it can create its own food from sunlight. This is a picture of a strawberry plant .


10.
A plant that utilizes the C3 carbon fixation pathway as the sole mechanism to convert CO2 into an organic compound. Rice is an example of a C3 plant.
 11.
Green eyes are  recessive phenotypes because two pairs of recessive genes are needed, while brown eyes are dominant phenotypes because only one pair of the dominant gene is needed.

12.
Roscoe is an ectotherm because his body does not regulate its own temperature. Lizards must find heat on their own.

13.
The seeds found in the feces are from the birds that eat berries. The seeds then can move place to place this is known as seed dispersal by animal.


14.
 An endotherm is an animal that can produce internal heat, these animals are known as warm blooded animals. Dogs are endothermic.
15.
The endosperm provides nourishment to the developing embryo in angiosperm seeds. Bread provides noursihment to the tissue formed by the union of a sperm with nuclei during double fertilization. Bread is an example of a endosperm.

Mikaela Fluharty



This is a picture of a sand dollar showing Radial Symmetry
    Radial Symmetry- This is the regular arrangement of body parts around a central axis. When an organism is radially symmetrical, you could cut from one side of the organism through the center, to the other side, anywhere on the organism, and this cut would produce two equal halves.


This is a fungi representing a Spore.  Fungi create hundreds of spores.
     Spore -  Spore is a reproductive structure, some of which are adapted for dispersal and surviving for extended periods of time in unfavorable conditions.


This picture of people helping weigh in my 4-H hog and shows Homeostatis.  Human bodies regulate imbalances in their body like sweating by lowering their body temperature.
     Homeostatis - Homeostasis is a point of balance or internal equilibrium.  It describes how the human body reacts to changes and keeps itself within certain parameters to ensure that it can function correctly. to regulate internal imbalances to sweating to lower body temperature.



This is a picture of a Crown of Thorns plant which is considered a CAM Plant.
     CAM Plant - CAM plants are able to absorb carbon dioxide from the air during night time and bind it to sugars during day time without losing aditional water.




This picture of the butterfly on our butterfly bush shows Mutualism.  The butterfly benefits from the nectar and the Butterfly bush  is able to be pollinated.
     Mutualism -  Mutualism is the symbiotic interaction between different species that is mutually beneficial to each one.




This photo of the tiger at Hovatter's show represents a Predator that in the wild exhibits Predation.
     Predation -  Predation occurs when one organism captures another and feeds on the captured organism.  One animal is the predator and the other that is eaten is the prey.


This photo shows leaves that have Phloem in them.
      Phloem Phloem carries the products of photosynthesis (sucrose and glucose) from the leaves to other parts of the plant.




This is a picture of maggots on an ear of corn.  The maggots are detritivores.
     A detritivore is an animal that feeds on dead organisms to breaksthem down into smaller molecules.





This ia a picture of a weeping cherry tree showing Cambium.
     Cambium cells are the building blocks for a tree.  They provide the physical structure that holds the tree up off the ground giving it its strength and flexibility.





These are peaches that can sometimes be sprayed with pesticides before being consumed to deter pests.  This demonstrates Biological Magnification.
     Biological Magnification, also called bioaccumulation -- is the process whereby certain substances such as pesticides or heavy metals move up the food chain and become more concentrated.

    


Friday 17 August 2012

Mikaela Fluharty



 This pictures of my dog represents a heterotroph.
      Heterotroph - A heterotroph is an organism that can't synthesize its own food. He sure likes his hot dogs.


 This picture of a potato.  It is a tuber and represents a modified root of a plant.
      Modified root of a plant- Tubers are stems modified for food storage. Roots which change their structures to carry out vital functions such as photosynthesis, gather oxygen, store food or water, or support the stem are considered modified roots of a plant.



This pictures of rust represents rust.
      Rust - Rust is a coating of iron oxide that forms on iron or steel through oxidation, usually in the presence of water or moisture.


This picture of my sister represents homologous structures.
      Homologous structures- Homologous body parts that are alike because the species in question share a common ancestor.  Both my sister and the kitten have four limbs.





This picture of a tall brown grass represents a C4 plant.
      C4 plant- C4 plant that can handle an environment with high daytime temperatures, intense sunlight, lack of water, or nitrogen or carbon dioxide limitations. It creates a four carbon sugar as its basic sugar unit when performing photosynthesis.



                                                                                                                                                                                                                    
This picture of algae on the water iris roots represents an autotroph.     
     Autotroph- An autotroph is an organism, like algae, that produces complex organic compounds (such as carbohydrates, ts, and proteins) from simple substances present in its surroundings, generally using energy from photosynthesis or chemosynthesis.




This picture of bananas ripening from green to brown represents effects of Ethylene.
      Ethylene- Ethylene is a colorless gas that is responsible for the fruit ripening, againg and stoping growth.




This picture of a frog we can in our pond represents ectotherm.
      Ectotherm- Ectotherms are animals whose body temperature is controlled by their external environment.  This word describes cold blooded animal like amphibians and reptiles.



 
This picture of this tiger at Hovatter's Zoo in Kingwood represents a K-Strategist.
      K-Strategist- K-Strategists are organisms that have slow growing populations.  K-strategists have a long life span, few young, a slow maturing process, and reproduce late in life. K-Strategists often provide extensive care of their young.





This pictures of Fungi represents a unicellular organism.
      Unicellular organism- A unicellular organism is an organism that consists of only one cell.


This pictures of corn represents a genetically modified organism.
      Genetically modified organism-  This is an organism whose genetic material has been altered using genetic engineering techniques that alters the organisms DNA. Corn can be genetically modified to be more resistant to pests.


This picture of a close up pine tree represents a gymnosperm leaf.
      Gymnosperm leaf- The gymnosperms are a group of seed-producing plants that include things like pines and plams.  The Gymnosperm seeds develop either on the surface of scales or leaves.  On this pine, the needles (leaf) are needle shape but some gymnosperm leafs are flat.




This picture of this Weeping Cherry Tree in my yard represents cellular respiration.
      Cellular respiration - Cellular respiration is a process by which cells break down organic compounds into simpler molecules and release energy.




This picture my sister holding a pine cone is an example of a Gymnosperm Cone - Female
      Gymnosperm Cone - Female - These are seed bearing plants, who seeds do not form inside are born on the scales of cones like a pine tree.  The one my sister is holding has seeds which indicates it is a female.  The male cones are smaller and only have pollen.


This picture of leaves represents the cuticle layer of a plant on this Weeping Cherry leaf.
      Cuticle layer of a plant- This is the protective waxy covering produced only by the epidermal cells of leaves.

This picture of flowers represents ATP.
       ATP- Adenosine Triphosphate is the mitochondria and it is the major 'currency' of energy in the body.  ATP is a chemical compound that cells would use to store energy or to release energy.  ATP is present in plants.



 This picture of a Crown of Thorns shows a modified leaf of a plant.  Its spines are the modified leaf.
      Modified leaf of a plant-   A modified leaf is an adaptation of plant meant for its own survival and adapted due to its environmental stress.



This picture of Miracle Grow that is dissolved in water represents hydrophilic.
      Hydrophilic- This is something that readily absorbs or dissolves in water.



This picture of this butterfly represents niche.
      Niche- The term niche is used to describe the role an organism or population plays within its community or ecosystem.  The butterfly pollinating the butterfly bush and drinking nector in its habitat.



This picture of a flowers roots represents mycorrhizae.
      Mycorrhizae- This is refers to a group of fungi which form a mutually beneficial relationship with many plants.  The fungus grows with the root and takes on the characteristics of the root.