IB Biology

IB Biology Midterm Study guide Exam Questions With 100% Correct Answers 1. Which are examples of homologous structures? A. The wings of bats and butterflies B. The fins of fish and whales C. The hindlimbs of frogs and grasshoppers D. The forelimbs of primates and penguins - answerD. The forelimbs of primates and penguins 2. Which is an example of natural selection? A. A giraffe stretching its neck to reach higher leaves B. A juvenile bird learning to sing C. Development of antibiotic ...

IB Biology Midterm Study guide Exam Questions With 100% Correct Answers 1. Which are examples of homologous structures? A. The wings of bats and butterflies B. The fins of fish and whales C. The hindlimbs of frogs and grasshoppers D. The forelimbs of primates and penguins - answerD. The forelimbs of primates and penguins 2. Which is an example of natural selection? A. A giraffe stretching its neck to reach higher leaves B. A juvenile bird learning to sing C. Development of antibiotic ...

IB Biology Midterm Study guide Exam Questions With 100% Correct Answers 1. Which are examples of homologous structures? A. The wings of bats and butterflies B. The fins of fish and whales C. The hindlimbs of frogs and grasshoppers D. The forelimbs of primates and penguins - answerD. The forelimbs of primates and penguins 2. Which is an example of natural selection? A. A giraffe stretching its neck to reach higher leaves B. A juvenile bird learning to sing C. Development of antibiotic ...

MetabolismAnabolism+catabolism. the chemical processes that occur within a living organism in order to maintain life. Enzymatic Reactions inside a living organism CarbonCarbon is an element with the atomic number 6, meaning it has four electrons in its outer shell. These electrons can form covalent bonds with carbon atoms or atoms of other elements. This allows a diversity of stable compounds to exist. LipidsA diverse group of Carbon containing macromolecules made up of carbon, hydroge...

leukocytes white blood cells, immune system phagocytes macrophages, white blood cells erythrocytes red blood cells, carry oxygen platelets used in clotting lymphocytes types of white blood cells that each have specific immune responses (Tcells and B-cells) humoral immune response if non-specific immunity fails, the body must produce a specific immune response to target the pathogen

proteinmacromolecule that contains carbon, hydrogen, oxygen, and nitrogen; they are made of subunits of Amino acids, needed by the body for growth and repair and to make up enzymes phospholipidThe phospholipids are not "true fats" because they have one of the fatty acids replaced by a phosphate group natural fatprotect and insulate body organs (major source of stored energy in the body) steroidSteroids are lipids because they are hydrophobic and insoluble in water, but they do not...

Mammals Lungs with alveoli Mammals Internal fertilization; give birth to live young; mammary glands Mammals Hair grows from skin; teeth including living tissue Birds Lungs with parabronchial tubes Birds Internal fertilization; Hard shells around the eggs

cell theory - Answer-- all living things are composed of cells - the cell is the smallest unit of life - cells only arise from pre-existing cells challenges to the cell theory - Answer-- *striated muscle* challenges the idea that a cell has one nucleus - *giant algae* challenges the idea that cells must be simple in structure & small in size - *aseptate fungal hyphae* challenges the idea that a cell is a single unit functions of life - Answer-- metabolism - response - homeostasis - gr...

Outline the cell theory. - ️️Living organisms are composed of cells. Cells are the smallest unit of life. Cells come from pre-existing cells. Discuss the evidence for the cell theory. - ️️The nature of scientific theories could be introduced here: the accumulation of evidence that allows a hypothesis to become a theory; whether a theory should be abandoned when there is evidence that it does not offer a full explanation; and what evidence is needed for a theory to be adopted or reje...