Following are some examples of homologous structures.
A dolphin's flipper, bird's wing, cat's leg, and the human arm are considered homologous structures. Whereas human beings have bones such as the humerus, ulna, radius, wrist bones, and fingers, these features appear as similar bones in form in the other animals. Bats, whales, and many other animals have very similar homologous structures, demonstrating that these creatures all had a common ancestor.
The tailbone in human beings is so-named because it is a homologous structure to the beginning of many animals' tails, such as monkeys. It is known as "vestigial" because it is the last vestige of what was once a tail.
All mollusks have a "foot" that they use to travel. This foot is homologous although it may not appear to be immediately - close inspection demonstrates that in terms of form and function, gastropods, cephalopods, and bivalves share this homologous structure in common.
Mammals share the homologous structure of the vertebrae in common. For instance, in spite of its height, the giraffe has the very same number of neck bones (seven) as a giant whale and a tiny human being.
Human beings, dogs, and cats all have similar pelvises, which are homologous structures to a vestigial pair of bones that snakes have. These bones are the last remains of a pelvis, with no legs to attach.
Our eyes are homologous to the eye bulbs which blind creatures who live in caves have on their heads.
All organisms contain homologous plasma membranes with what is called a phospholipid bi-layer.
The wrist bone of the human being is homologous with the structures of many other animals, including the dolphin and the bird. A homologous structure in the panda looks like a sixth appendage, but it is actually a modified wrist bone that helps the panda bears pick leaves off the trees more dexterously.
An auditory bone that exists inside the ear of mammals is a homologous structure to the reptile's jaw bone (including the dinosaurs) as well as the jawbone of species of fish that are still in existence today.
The carpals, metacarpals, and phalanges of the human hand have homologous structures in a variety of animals, and they're not all mammals. For instance, these features are seen in penguins and reptiles as well as the mammals to which human beings are more closely related.
The genetic code among all living things is homologous - extremely similar although other genetic codes exist. This suggests a common ancestor.
Wasps and bees have stingers that they can use when they feel they are in danger. However, this is a homologous structure to the ovipositor of other organisms - the feature that allows these organisms to lay eggs.
Answer:
obesity increases blood pressure
Explanation:
This is because the high fat percentage in the body has lead to a build up of fat on the inside of arteries and this makes them thinner. the heart has to pump harder to get the blood around the body and through these, now smaller arteries. therefore yes having diabetes does increase blood pressure.
other factors which increase blood pressure are high stress levels, smoking, anxiety.
Infectious agents are those that corrupt and prey on an organism or a host. This is sometimes called parasitism when a foreign organism consumes a host by preying on its nutrients and food. Hence, we are uncertain in Anna's case because there is no clear description of her symptoms.
Answer:
Fill in the blanks.Asher wishes to apply the FITT principles to create a cardiorespiratory fitness program. He first must determine the frequency of his workouts. Asher learns that the American College of Sports Medicine (ACSM) recommends spending 3 to 5
days per week on cardiorespiratory conditioning. He understands that the intensity level he chooses will also affect the number of days per week he will work out. Asher is currently not very fit and does not like to work out at high-intensity levels, so he chooses to work out at moderate-intensity levels. According to the ACSM, lower-intensity levels require workout frequency to be more than 3 days per week with 5 days per week recommended. Asher determines that he will measure his workout intensity by counting the number of heart beats for 10 seconds and then multiply by six to convert to the number of beats per minute to determine his heart rate
.Using the ACSM's training guidelines, Asher reads that moderate intensity indicates that his heart rate range should be at 64 to 75%
of his heart rate maximum. He also understands that if he uses the talk test to measure his moderate intensity level, he should be able to speak in brief sentences and words. Asher decides that for optimal cardiorespiratory conditioning at moderate intensity his exercise time should be minutes in duration. After determining the exercise frequency, intensity, and time, Asher is now left to determine exercise type
.Through reading, he learns that for optimal motivation, training improvements, and injury prevention
, he should choose activities that he enjoys.
