Brainarium

All of the following cellular structures are functionally important in cells of the gametophytes of both angiosperms and gymnosperms, except A) haploid nuclei. B) mitochondria. C) cell walls. D) chloroplasts. E) peroxisomes. - CORRECT ANSWER-d Plants with a dominant sporophyte are successful on land partly because A) having no stomata, they lose less water. B) they all disperse by means of seeds. C) diploid plants experience fewer mutations than do haploid plants. D) their gametophyt...

what is a megaspore - CORRECT ANSWER--in heterosporous plants, a haploid spore that develops into a female gametophyte; in most groups, megaspores are larger than microspores -give rise to megagametophytes (female gametophyte) what is another word for the megasporangium - CORRECT ANSWER-nucellus what are the functions of the seed - CORRECT ANSWER--protection of the embryo -nutrition of the embryo -dispersal list the events that led to the evolution of an ovule - CORRECT ANSWER-1. retenti...

What structure of a pine ovule develops into a seed coat? - CORRECT ANSWERIntegument What do the pollen grains of pine trees have that aid in their dispersal by the wind? - CORRECT ANSWER-wings/bladders Could all the representatives of gymnosperms mentioned in this exercise be differentiated by their leaves alone? - CORRECT ANSWER-Yes, some are lobed, broad leaves, others straplike, the scale leaves are arranged in various numbers What is the difference between a gymnosperm and an angiospe...

What does dioecious mean? - CORRECT ANSWER-unisexual; male and female sex organs occur on separate plants seed bearing pine cones are the male or female cones? - CORRECT ANSWER-female What forms the seed coat? - CORRECT ANSWER-The integuments of the megasporophyll Where on the pine branch was the terminal bud last year? - CORRECT ANSWERExamine the bud scar. How can you tell where the terminal bud is? - CORRECT ANSWER-Look at the distance from the bud scar to terminal bud. How are pine ne...

The young female cones are called ____ cones and contain the magasporangia. Mature female cones are called _____ cones. - CORRECT ANSWER-ovulate, carpellate Pollen grains are carried by the ____ to female cones. - CORRECT ANSWER-wind ____ ____ grow through the tissue of the megasporangium and the sperm nucleus is released to fertilize the egg forming a zygote. (Fertilization occurs during the second year) - CORRECT ANSWER-pollen tubes A ____ is a dormant embryo embedded in nutrient tissue ...

cycads - CORRECT ANSWER-These gymnosperms grow in tropical and subtropical areas. conifers - CORRECT ANSWER-These gymnosperms keep their needles year round. cycads - CORRECT ANSWER-These plants look like palm trees with giant cones. ginkgoes - CORRECT ANSWER-These are often planted along city streets because they tolerate air pollution. cones - CORRECT ANSWER-A reproductive structure that most gymnosperms have. False - CORRECT ANSWER-True or False: Male cones contain ovules at the base of...

Tom Holder Bundle with complete solutions.

Direct transmission - CORRECT ANSWER-transfer of parasite from one host to another by direct contact or through carrier with no intermediate stages of secondary host Indirect transmission - CORRECT ANSWER-access different host at different stages Satiation - CORRECT ANSWER-point that predator is full Condition - CORRECT ANSWER-any biotic or abiotic factor that influences where an organism can live but is not used up Resource - CORRECT ANSWER-any biotic or abiotic factor that is required an...

what covers the root cap - CORRECT ANSWER-lubricated mucigel what happens in the region of cell division? - CORRECT ANSWER-cells divide - RAM -root cap What happens in the zone of elongation? - CORRECT ANSWER-cells extend by water uptake what happens in the region of maturation? - CORRECT ANSWER-- root cell differentiation and tissue specialization -identified by presence of root hairs (absent from older regions) what does the epidermis of roots enclose? - CORRECT ANSWER-the root corte...

Animal diversity - - CORRECT ANSWER-over 1.5 million species, 35 phylums, more similarity within animal genomes than other groups. Animal characteristics - - CORRECT ANSWER-Multicellular, Lack Cell Wall, Sexual Reproduction w/ mobile, small sperm and larger, non-motile egg, Nervous tissue - complexity, Hox Genes- (all animals have hox genes), Heterotrophic Metazoans means - CORRECT ANSWER-multicellular anima Parazoans are - CORRECT ANSWER-sponges Eumetazoans are - CORRECT ANSWER-true mult...

2 Types of Gated Ion Channels - CORRECT ANSWER-Voltage Gated and Chemical Gated Voltage Gated - CORRECT ANSWER-Open/Close is response to voltage charge Chemical Gated - CORRECT ANSWER-Open/Close in response to chemicals Frequency - CORRECT ANSWER-"Language" of the nerve message _________the frequency, the ___________ the excitation level - CORRECT ANSWERHigher, greater Resting Potential - CORRECT ANSWER-Imbalance between K+ and Na+ inside/outside neuron Membrane of Neuron is select...

woody plants bring life with ______ vascular then develop _____ as they grow - CORRECT ANSWERprimary and 2nd when does the 2nd growth occur in stems (eudicots) -CORRECT ANSWERlate in the first year what growth do leaves have -CORRECT ANSWERONLY primary growth what do roots contain -CORRECT ANSWERendodermis and pericycle stem of eudicots -CORRECT ANSWERprimary and secondary growth vas. bundles in ring patterns pith in center and cortex outside stem of monocot plants -CORRECT ANSWERprimary...

Animals make use of one or more organs to remove metabolic wastes, excess water/ions and toxins - CORRECT ANSWER-Excretory system Most excretory organs contain _______ structures that are lines with _____ cells that have the capacity to actively transport _____ - CORRECT ANSWER-tubular : epithelial : ions _____ critical for removing waste from body fluids and maintaining homeostasis - CORRECT ANSWER-Excretory system Excretory system is responsible for ____ and ___ balance - CORRECT ANSWER...

How many pairs of gills do fish have? - CORRECT ANSWER-5 Fish Gill structure includes: - CORRECT ANSWER-gill filaments gill lamellae gill arch what are gill lamellae? - CORRECT ANSWER-capalary beds How many pairs of gills do amphibians have? - CORRECT ANSWER-3 Where does blood enter the gills at? What is the flow direction? - CORRECT ANSWERenters the back of the gill region Flow is back to front Where does oxygenated water enter the lungs at? What is the flow of water with O2? - CORRECT...

Epinephrine (Adrenaline) - CORRECT ANSWER-Hormone that is an emergency tune up of the body in case of situation such as an allergic reaction Nonrepinephrine (Noradrenaline) - CORRECT ANSWER-Hormone that puts hormones back in order after release of adrenaline. Asexual Reproduction - CORRECT ANSWER-When offspring are produced from a single parent and are clones of the parent. 3 Major forms of Asexual Reproduction - CORRECT ANSWER--Budding -Regeneration/Fragmentation -Fission Budding - COR...

Autotrophic - CORRECT ANSWER-"self-feeding" (needs photosynthesis) Eukaryote: Protista - Protozoas - CORRECT ANSWER-"animal-like" heterotrophic multicellular and unicellular Eukaryote: Protista - Fungal-like Protists - CORRECT ANSWER-saprotrophic (eats decaying matter) multicellular Saprotrophic - CORRECT ANSWER-process of eating decaying or dying matter EUKARYOTE: Protista Characteristics for Movement - CORRECT ANSWER-flagella cilia pseudopodia gliding Protista Movement...

Muscle Tissue - CORRECT ANSWER-cells specialized to contract, generating mechanical force Types of Muscle Tissue - CORRECT ANSWER-Skeletal, Smooth, and Cardiac Skeletal Muscle - CORRECT ANSWER-attached to bone or exoskeleton for locomotion elongation of fibers voluntary control striated multi-nucleate Smooth Muscle - CORRECT ANSWER-surrounds tubes and cavities for propulsion of contents flattened cells involuntary control 1 nucleus per cell Cardiac Muscle - CORRECT ANSWER-elongated ...

What is the common name of Subphylum Urochordata? - CORRECT ANSWERtunicates What is the common name of Subphylum Cephalochordata? - CORRECT ANSWERlancelets What is the common name of Subphylum Vertebrata? - CORRECT ANSWERvertebrates: chordates with a vertebral column What are some Prokaryotic characteristics? - CORRECT ANSWER-prokaryotic means before nucleus lacks a nucleus lacks membrane-bounded organelles What are some Eukaryotic characteristics? - CORRECT ANSWER-means true nucleus has...

Which plant hormone is found in mature leaves, dormant buds, and seeds? - CORRECT ANSWER-abscisic acid What 3 things does abscisic acid inhibit? - CORRECT ANSWER-1. growth 2. cell elongation 3. alpha-amylase production What 2 things does abscisic acid promote? - CORRECT ANSWER-1. the aleurone layer by the production of storage compound in seeds to prevent early germination 2. leaf senescence Which hormone may not be an actually a hormone, but it affects the growth and is not transported...

domain eukarya has _____________ cells - CORRECT ANSWER-eukaryotic prokaryotic - CORRECT ANSWER-"before nucleus" lack nucleus lack membrane-bound organelles eukaryotic - CORRECT ANSWER-"true nucleus" well-defined nucleus membrane-bound organelles- internal membrane system (compartments) binomial nomenclature - CORRECT ANSWER-genus name and specific epithet genus name is ________ capitalized - CORRECT ANSWER-always specific epithet _____________ capitalized - CORRECT ANSWER-n...