This picture shows an earthworm, which is classified as a decomposer; since it acts as a recycler to change the decaying matter into simple mineral nutrients that plants can use. The work produced by earthworms can lead to several benefits to the environment and humans. As they burrow into the soil, it increases infiltration and minimizes surface water erosion. This helps lower the sizes of floods from heavy rainfall. Also, as the earthworms consume organic matter and mineral particles, they line their burrows with nutrients. This helps enrich the soil in which we plant crops and other types of vegetation in.
This picture shows photosynthesis,
since the tree's leaves can convert energy from sunlight into chemical energy and
store it as sugars. This procedure takes place in the upper and lower epidermis, the mesophyll, the vascular
bundles, and the stomates of the
plant’s leaves. There are two parts to photosynthesis, the light reaction and
the dark reaction. The light reaction
occurs in the thylakoid membrane and converts light energy to chemical energy.
Within this membrane, chlorophyll and several other pigments are organized in clusters . Each of the pigments absorb a different color of light and passes
its energy to the central chlorphyll molecule. The energy forms a
chemical called ATP (adenosine
triphosphate). The dark reaction requires the products of the light
reaction before it can convert CO2
to sugar through the Calvin cycle.
Here is a picture of a rabbit, a herbivore, eating the grass in my yard. An herbivore is identified
to be an organism that mostly feeds on autotrophs, which are organisms that
produce their own food. Herbivores tend
to have physical features to help them eat the tough, fibrous plant matter. A
rabbit tends to use its prehensile
lips and incisors to grab the
plant material. Once it secures its teeth on the plant material, it can tear
off a piece. The rabbit then uses its molars to chew the food into small
particles, which makes it easier to swallow. The plant matter is then digested
in the cecum, which is located
between the small and large intestine.
This picture shows an example of predation, which is when a predator attacks and consumes its prey. A spider has managed to use its jointed jaws to grab hold of the fly. Once it pierces the fly’s skin with its fangs, it triggers the release of its venom gland. This venom has enough neurotoxin to paralyze or kill the prey. The spider then liquefies its prey by releasing digestive enzymes onto or into the organism. Once completed, the spider can then suck the liquefied remains into its stomach through the hairs on its jaws and mouth.
This tree in my front yard was chosen to be the habitat of a family of birds. (Unfortunately, I was unable to capture a picture of any of the family members before they spotted me and flew away.) A habitat is a place where an organism
chooses to live. Before selecting a habitat, an organism considers the type of
shelter, food and climate conditions it provides. This decision is also
influenced by its chances at survival and reproduction. In this case, a family
of birds has decided to choose a tree in my front yard as their habitat. This
tree is high enough that predators, such as cats or my neighbor’s dogs, would
be unable to reach them. In addition, the tree is located at a specific spot,
in which the sun shines only on a certain part of the tree, while the other
part is in the shade. This will help the birds stay cool or warm up in the
different types of weather. Not only that, but my front yard can provide them
with earthworms and grubs as a food source. These birds seem to have selected a
good habitat that fulfills most of their needs.
As seen in the picture above, when oil and water are
mixed together, they do not combine. This demonstrates that oil is hydrophobic (water-fearing), since it
doesn’t dissolve in water. Oil and water tend to have different chemical
compositions from each other. Given that oils are fatty substances, it causes
them to be comprised of long carbon chains with a hydroxyl group at one end.
These lengthy carbon chains are non polar; while water molecules are dipolar, which
means that one of their ends is positively charged and the other is negatively
charged. Due to the difference in the molecular structures, oil and water are
unable to mix with each other.
2 comments:
Hi Laura
Great start - I can certainly imagine the birds in and out of that bush - it looks like a very protective habitat. Your posts are well thought out and detailed.
Ms. Steele
Thank you Ms. Steele! (:
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