Biology Answers

Explain all evidences there are 6 evidences of evolution
1) MORPHOLOGICAL EVIDENCES 2) ANATOMICAL EVEDENCES 3) VESTIGIAL ORGAN
4) PALEONTOLOGICAL EVIDENCES 5)CONNECTING LINKS 6) EMBROLOGICAL EVIDENCES.....

Name and motivate the most important evolutionary step which distinguishes reptiles from amphibians.

Discuss the fossil evidence and advantages of hominid bipedalism, ability to walk upright.

Name the orders as well as the most important features of members of the surperorder Paenungulata.

Malignant tumors are sometimes treated with drugs that halt mitosis, and thus stop the production of new cancer cells. Two such drugs, vincristine sulfate and vinblastine sulfate, interfere with the formation of spindle fibers. How could this action halt mitosis? Antibiotics such as mitomycin C and inorganic compounds such as cis-platinum also can be used to stop the growth of tumors. These drugs interfere with DNA synthesis in treated cells. How could this action halt mitosis?

If a poison were only to allow ATP production from glycolysis, what would be the net ATP output?

reproductive part of flower

Write briefly on cytology in the higher institutions, explain what make it a lucrative field of study

1-What is the power plant of the cell?
2-which organalle ensures that after cell division each daughter cell has the correct number of chromosomes?
4-having tissues that digest food is an example of what?
5-The plasma membrane contains what?
6-which of the following is true of the nucleus(its considered the controll center of the cell, it contains all the cells DNA, all cells have a nucleus, or all of the above)
7-which structure determines what molecules can enter and leave the cell?
8-which organalle may have allowed early eukaryotes to make food and produce oxygen?

1. Please write the names of the main groups in which the proteins are classified according to their form and main function, and explain how a.a. distribution in proteins differs in these groups. Provide an example of a macromolecule or other complex structure representing each of the three types.
2. What kind of chemicals or factors can be used to break the intermolecular forces and disulfide bonds?
3. Define denaturation of proteins and list five different ways to denature a protein?