Biol 141 Study guides, Class notes & Summaries

integumentary system includes ___ - Answer-skin hair nails glands nerves (sensory receptors) skin consists of ___ - Answer-epidermis and dermis epidermis - Answer-epithelial tissue derived from the ectoderm stratified squamous epithelium acascular dermis - Answer-connective tissue (proper) derived from mesoderm vascular contains nerves, glands, and hair follicles layers of epidermis beautiful skin gets lovely compliments - Answer-stratum basale, stratum spinosum, stratum granulosu...

Difference between a hypothesis and scientific theory? - Hypothesis - testable statement to explain a phenomenon Scientific Theory -well-substantiated explanation of some aspect of the natural world, based on knowledge that has been repeatedly confirmed through observation and experimentation Hypothesis and prediction? - Prediction describes a measurable or observable result that must be true if hypothesis is valid What kinds of hypotheses are useful for scientific investigations that try ...

Comprehensive and detailed Final exam summary for Biol 141. *Essential!! *For effective final exam prep!! *For you,at a price that's fair enough!!

This is a comprehensive and detailed note on chapter 22;Evolution, Natural Selection, Mass Extinctions for Biol 141. * Essential!! * A vital resource!! * For you, at a price that's fair enough!!

Practice Exam for BIOL 141 Exam 2 with 100% correct answers The semi-fluid matrix that surrounds organelles in a cell is called the - answercytoplasm A distinctive feature of eukaryotes is the organization of tightly packaged chromosomal DNA with proteins into a membrane-bound structure called a - answerNucleus The organelle that can collect package modify and transport molecules is called the - answerGolgi Apparatus or body The evolutionary process that created chloroplasts and mitochond...

The Pre-embryonic period - Consists of the first two weeks in the forms: - Zygote (1 cell; diploid) - Morula (72 hours) - Blastocyst (5 days) Morula - At 72 hours of gestation - solid ball of 16-32 cells (called blastomeres) - the size of an ovum/zygote due to in favor of rapid cleavage division (for optimal surface area and waste removal) over growth. Blastocyst - 5 Days Gestation Features: - fluid filled cavity (blastocoel or blastocyst cavity) - inner cell mass (becomes the embryo)...

integumentary system includes ___ - skin hair nails glands nerves (sensory receptors) skin consists of ___ - epidermis and dermis epidermis - epithelial tissue derived from the ectoderm stratified squamous epithelium acascular dermis - connective tissue (proper) derived from mesoderm vascular contains nerves, glands, and hair follicles layers of epidermis beautiful skin gets lovely compliments - stratum basale, stratum spinosum, stratum granulosum, stratum...

Sebaceus glands are - Answer-epithelial tissue The epidermis of skin - Answer-contain melanocytes in the stratum basale and form the matrix of the hair follicle, the site of hair growth Dermis contains - Answer-arrector pilli muscle, hair root plexus, collagen, sweat glands Only Cervical vertebrae have - Answer-transverse foramina Pelvic girdle consists of - Answer-Acetabulum and ischial tuberosity Both the diaphysis and epiphysis of a long bone - Answer-can be located on the tibia and uln...

Comprehensive and detailed Protein Condensed Notes for Biol 141. *Essential!! *For you, at a price that's fair enough!!

Comprehensive and detailed notes on Nucleic acids and central dogma for Biol 141. * Essential!!