30.
The photo above shows a cactus, which is a modified leaf. Modified leaf is an adaptation of plant meant for its own survival and adapted due to its environmental purposes. A cactus would fall into this category because it has the thorns to survive in its environment.
29.
The picture above shows a tomato, which is an introduced specie. An introduced specie is an exotic, non-indigenous, or non-native specie, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Tomatoes originated from Central America, I believe the tomato falls into the category of introduced species.
28.
The photo above shows a gymnosperm tree. The gymnosperm leaves look like pine needles to me. They produce gymnosperm cones, which bear seeds.
27.
The picture above shows a heterotroph. A heterotroph is an organism that has to eat food in order to obtain the energy needed to survive. Animals and humans would be a common example.
26.
The photo above shows oil, which is hydrophobic. Hydrophobic means that it will not dissolve in water. Unlike salt, which is hydrophilic.
25.
The picture above shows salt, which is hydrophilic. Hydrophilic means that it has an affinity for water; readily absorbed or dissolved in water. Examples of hydrophilic compounds include salt and sugar.
24.
The photo above illustrates a niche. A niche is an animal's habitat, meaning the animal lives in it. I've seen squirrels go in and out of this hole. The niche is on the side of my house and I think that inside currently resides rabbits.
23.
The picture above shows a littoral zone organism. The littoral zone is the part of a sea, lake or river that is close to the shore. So a littoral zone organism is an organism that lives that lives in the littoral zone, a starfish.
22.
The photo above illustrates a cuticle layer of a plant. The plant cuticle is a protective film covering the epidermis of leaves. It consists of lipid and hydrocarbon polymers impregnated with wax, which make the leaf look so shiny and glossy.
21.
The photo above shows glycogen. Glycogen is a multi-branched polysaccharide that serves as a form of energy storage in the form of glucose, glucose being sugar. In humans, glycogen is made and stored primarily in the cells of the liver and the muscles, and functions as the secondary long-term energy storage.
20.
The picture above shows a pineapple, a CAM plant. A CAM plant is a plant that utilizes the Crassulacean acid metabolism (CAM) as an adaptation for arid conditions. CO2 entering the stomata during the night is converted into organic acids, which release CO2 for the Calvin Cycle during the day, when the stomata are closed.
19.
The picture above shows corn, a C4 plant. A plant that produces the 4-carbon compound oxalocethanoic acid as
the first stage of photosynthesis. Another example of a C4 plant is crabgrass.
18.
The picture above shows a potato; a C3 plant. It is a plant that utilizes the C3 carbon fixation pathway as the sole mechanism to convert CO2 into an organic compound. Another example of a C3 plant would be rice and wheat.
17.
The picture above shows an amniotic egg. The type of egg produced by reptiles, birds, and prototherian mammals (amniotes), in which the embryo develops inside an amnion.
16.
The picture above shows an exoskeleton from a beetle. An exoskeleton is the external skeleton that supports and protects an animal's body. In popular usage, some of the larger kinds of exoskeletons are known as "shells". I was very shocked to find an exoskeleton just lying around in my yard, it was odd.
15.
Territorial behavior occurs when any type of species feels the need to defend or scare off anything. The picture above shows a dog showing this territorial behavior. As I approached this dog, like many dogs, it ran up to fence and barked like crazy. He was trying to scare me off because he was showing me that it was his territory.
14.
The picture above shows a worm, or a detritivore. Detritivores are heterotrophs that obtain nutrients by consuming detritus. By doing so, they contribute to decomposition and the nutrient cycles. Worms are a good example of detritivores.
13.
The picture above shows an odd, furry-looking, insect. Adaptation of an animal refers to both the current state of being adapted and to the dynamic evolutionary process that leads to the adaptation. Adaptations contribute to the fitness and survival. Organisms face a succession of environmental challenges as they grow and develop. They are equipped with an adaptive plasticity as the traits develop in response to the imposed conditions. Since the insect had fur covering it, it caused it to be camouflaged.
12.
Adhesion is the force of attraction between molecules of different substances. Cohesion is the force of attraction between molecules of the same substance, ex: water molecules. Adhesion and cohesion are responsible for two other properties of water: surface tension and capillary action.
11.
Cambium is a layer in a tree, which is shown above. It is a formative one-cell-thick layer of tissue between the wood and bark of most woody plants that is responsible for secondary growth. The cambium layer produces the growth rings inside the tree, adding new layers of phloem and xylem each season.
10.
Spore's being produced by a tree is shown above. A spore is a unit of asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavorable conditions. By contrast, gametes are units of sexual reproduction. Spores form part of the life cycles of many plants, algae, fungi and protozoa. In bacteria, spores are not part of a sexual cycle but are resistant structures used for survival under unfavourable conditions.
9.
The picture shows phloem in a tree stump. In vascular plants, phloem is the living tissue that carries organic nutrients, to all parts of the plant where needed. In trees, the phloem is the innermost layer of the bark. The phloem is concerned mainly with the transport of soluble organic material made during photosynthesis.
8.
The picture above shows a long-day plant. Long-day plants can be observed quickly growing and producing flowers or fruit during the summer. In your garden or at the market you can find examples of long-day plants in the lettuce and radishes you grow. In the wild, clover is an example of a long-day plant.
7.
The picture above shows a pine cone. The term "gymnosperm" means "naked seeds", after the unenclosed condition of their seeds (called ovules in their unfertilized state). Their naked condition stands in contrast to the seeds and ovules of flowering plants, which are enclosed within an ovary. Gymnosperm seeds develop either on the surface of scales or leaves, often modified to form cones.
