Science Semi-Final Exam

• Peristalsis is a wavelike motion that pushed food through the esophagus.
• The liver produced this bile to help to absorption of body fats.
• Absorption of food nutrients takes place in the small intestine.
• The undigested parts of food are eliminated through the anus is called Feces.
• A child will experience constipation if s/he avoids foods that are rich in fibers.
• What is the correct processes that involves the function of the digestive system? INGESTION, DIGESTION, ABSORPTION, ASSIMILATION, ELIMINATION.
• The results in two daughter cells in mitotic cell division have chromosomes and are genetically identical to its parent cell.
• With the help of cell division it causes the cells to grow larger. - False
• In cytokinesis, the cytoplasm divides into two equal portions.
• During interphase, DNA replication occurs.
• Synapsis doesn't happen in Meiosis I.
• Anaphase stage in mitosis is when the chromosomes aligned at the metaphase plate. - False
• Tall pea plant is an example of genotype.
• XX and Yy are examples of alleles.
• The law of dominant stated that allele completely masks the effects of a recessive allele.
• The phenotypic ratio for a monohybrid cross would be 3:1.
• Mutation can lead to the variation of offspring in asexual reproduction.
• Genetic traits of leaves are noted as follows:

  L = long,    l = short

  W = wrinkled, w = smooth

  Y = yellow, y = white

  R = ribbed, r = grooved

  Which of the following is the genotype for a short, , wrinkled, yellow, grooved leaves?

  -llWwYYrr
• If two white dog produce a black offspring, the parent’s genotypes for color must be heterozygous.
• How many chromosomes will an organism transmit to its offspring having 4 homologous pairs of chromosomes? -4, ONE PAIR OF HOMOLOGOUS CHROMOSOMES
• The Mendel's law of inheritance by which a dominant allele completely masks the effects of a recessive allele is Law of Dominance.
• In the F1 and F2 generation of a monohybrid cross, the phenotypic ratio would be 3:1.
• The recessive trait will show up in about 50% of the offspring if Vv mates with vv .
• If VV mates with vv, all of the offspring will exhibit the dominant trait.
• If vv mates with vv, all of the offspring will excessive the recessive trait.
• The dominant trait will show up in about 75% of the offspring if Vv mates with Vv.
• An organism's scientific name comes from Genus and Species levels of classification.
• The use of Public Transport can minimize the carbon footprint.
• Phytoplankton and chlorophyll are Producers organism.
• Fishes, birds, mammals, reptiles, and amphibians are vertibrates organisms.
• PLANT - GRASSHOPPER - FROG - SNAKE - EAGLE - BACTERIA & FUNGI. what is the trophic level would the snake be placed? - Third trophic level
• Reptiles are known as cold-blooded animals because they can't produce heat.
• Binomial Nomenclature is a two-part system of naming organisms using the generic and the specific name.
• Taxonomy is a Sciece of classifying and naming organisms.
• Systematics is a scientific study of the diversity of organisms and their evalutionary relationships.
• Fungi is a kingdom of organisms which are heterotrophic and have chitin cell walls.
• Food chain is a feeding relationship that exists among organisms.
• Trophic level refers to each step in the transfer of energy and matter in a community.
• Ecosystem is a community or group of living organisms that live in and interact with each other in a specific environment.
• Energy Pyramid is a diagram that compares the energy used by producers, primary consumers, and other tropic levels.