__________ cells, secrete the hormone gastrin which stimulate the HCl production of parietal cells.
G- cells
osteoblast secrete __________.
Collagen
*Osteoblast cannot carry out mitosis!!
In _______________, different species emerge from the same single ancestor.
Adaptive radiation
What is an example of adaptive radiation?
Fiches from Galapagos Islands studied by Darwin
The Hardy-Weinberg law dhows us how genotype and phenotype stability can be achieved in a ______________.
Population
What are the 6 assumptions of the Hardy Weinbergy law:
1. large population
2. random mating
3. no isolation
4. no mutation
5. no natural selection
Guanine - Cytosine contains how many H-bonds?
3 Hbonds
In ___________ syndrome, there is an extra X chromosomes - XXY
Klinefelter Syndrome
In ___________ Syndrome, the female is missing an X chromosome -- XO
Turner Syndrome
The __________ transports the sperm to the urethra then out of the penis.
Vas Deferens
The _______________ adds more thick mucous to the semen.
Cowper's glands
Spermatozoa matures in the ________________.
Epididymis
Sperm production occurs in the _______________.
Seminiferous Tubules of the testes
_______________ cells secrete testosterone which allow germ cells to mature into sperm cells.
Leydig cells
Darwin suggested that variation in traits are due to mutations.
a. true
b. false
False
The following are high energy compounds:
1.
2.
3.
1. phosphoenolpyruvate - highest energy
2. acetyl coa
3. ATP
In the fetus the _______________, conducts blood from the pulmonary artery to the aorta, by passing the lungs.
ductus arteriosus
In the fetus the _______________, bypasses the pulmonary circulation.
foramen ovale
In the fetus the _______________, bypasses the liver.
ductus venosus
____________ can be stored in the liver.
Glycogen. NOT GLUCOSE
Species that have analogous structures (have similar physical appearances) but are not related is an example of _______________.
Convergent evolution.
_______________ is a resting condition in the life of an insect.
Diapause
*similar to the vertebrates' hibernation
Path urine takes:
Loop of Henle
Distal Convoluted Tubule
Collecting duct
In the kidneys, the __________________ is where most resorption occurs.
proximal convoluted tubule
In the kidneys, the _____________ is the main area where secretion occurs.
Distal convoluted tubule.
____________ lack cholesterol in their cell membranes.
a. eukaryotes
b. prokaryotes
b. prokaryotes
Fertilization occurs in the _______________.
Fallopian tubes
Male baboons and female baboons are very different in appearance, this is an example of ________________.
Sexual dimorphism
Random changes in the allele frequency from one generation to another in a small population can lead to elimination of a particular allele by chance alone is called __________.
Genetic Drift
Insulin ______________ blood glucose
a. increase
b. decrease
b. decrease
Glucagon _____________ blood glucose.
a. increases
b. decreases
increases
What cofactor is found in chlorophyll?
Mg+2
Early Earth's 5 reducing atmosphere contained:
NH3
H2
CH4
H2O
H2S
****O2 IS NOT PRESENT*****
Which 2 species are the only ones that have a 4 chambered heart?
mammals
birds
Vegetative Propagation is a form of ________________ reproduction in plants
a. sexual
b. asexual
asexual
Pollen is produced in the _______________.
Anther
Myoglobin exist as a single chain and will store O2 in muscle.
a. true
b. false
true
_________________ is the primary neurotransmitter of the parasympathetic nervous system.
Acetylcholine
______________ is the primary neurotransmitter of the sympathetic nervous system.
Norepinephrine
Viruses lack cellular organelles, thus antibiotics do not work against viruses.
a. true
b. false
true
What which type of RNA are unusual bases such as methylinosine, psuedouridine, and 4-thiouridine are found?
t-RNA
Kingdom _____________ will include the blue-green algae and the bacteria.
Monera
Paramecium are found in what Kingdom?
Kingdom Protista
Green Algae are found in what kingdom?
Kingdom Plantae
The sticky part of the flower is the _____________ and will catch the pollen.
Stigma
Vitamins yield how much energy?
zero!!! vitamins do not make any energy!
Stem cells in the bone marrow produce lymphocytes by ___________.
a. meiosis
b. mitosis
mitosis
Synapsis occurs in what stage of meiosis?
Prophase I
NOT FOUND IN MITOSIS!!
_____________ is when new species forms as a result of geographic isolation.
allopatric speciation
The most recent era is the _____________.
Cenozoic era
In what era did dinosaurs appear in ?
Mesozoic era
The first land vertebrates, plants appeared in the _____________.
Paleozoic era
Invertebrates, monera, fungi appeared in the earliest era, called _____________.