Lamarck is best known for his Theory of Inheritance of Acquired Characteristics: If an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring. He said that change is made by what the organisms want or need. For example, Lamarck believed that elephants all used to have short trunks. When there was no food or water that they could reach with their short trunks, they stretched their trunks to reach the water and branches, and their offspring inherited long trunks. Lamarck also said that body parts that are not being used, such as the human appendix and little toes are gradually disappearing. Eventually, people will be born without these parts. Lamarck also believed that evolution happens according to a predetermined plan and that the results have already been decided. Lamarcks theory has been disproven and shows that acquired traits are not passed on to offspring.
Ans 2. On a human body, dorsal refers to the back portion of the body.
Ans 3. On a human body, ventral refers to the front part of the body.
Ans 4. Anterior is the front of a structure, or a structure found toward the front of the body.
Ans 5. Situated at or toward the hind part of the body.
Ans 6. the upper part of the human body, or the front or upper part of the body of an animal, typically separated from the rest of the body by a neck, and containing the brain, mouth, and sense organs.
Ans 7.It separates the outer ear from the middle ear. When sound waves reach the tympanic membrane they cause it to vibrate. The vibrations are then transferred to the tiny bones in the middle ear. The middle ear bones then transfer the vibrating signals to the inner ear.
Answer:
genrally it includes the population ,community, ecosystem,and biosphere .An ecosystem is all the living things in an area interacting with all of the abiotic parts of environment
Which of what? What’s the rest
