Which branch(es) of the immune system can detect and kill cancerous cells? Innate Internal Immune System No answer text provided. Adaptive Immune System Innate External Immune System

Which symbiotic interaction involves one organism feeding on or within another organism? competition mutualism commensalism parasitism

There are many more olfactory cells than there are taste buds. True False

Where does the majority of hemopoiesis occur after birth? Yellow bone marrow ) Red bone marrow Thymus gland Lymph nodes

Why African honeybees were brought to South America In the 1950s, scientists brought African honeybees to Brazil to Multiple Choice pollinate African trees and shrubs that had also been brought to Brazil. outcompete European honeybees that were killing livestock. establish tropical bees as pollinators for crops and producers of honey. act as predator of aphids that were destroying grain crops.

The real image is the reverse of the actual specimen. True or False True False

Fill in the Blank Question In the laboratory, the method that scientists use to renature DNA into its normal double-stranded form is square (2) Need help? Revlew these concept resources.

Question 5 of11 Which hormone is secreted by the pituitary gland to stimulate development of ovarian follicles in females and spermatogenesis in males? Follicle-stimulating hormone Luteinizing hormone Somatostatin Cortisol

What is glycolysis? A series of chemical reactions that break down glucose without oxygen to create adenosine triphosphate The process of using pyruvic acid and myoglobin stored in muscle fibers to create adenosine triphosphate The process of replenishing adenosine triphosphate quickly using creatine phosphate stored in resting muscles A series of chemical reactions that break down glucose in the presence of oxygen, generating adenosine triphosphate

Viruses have many properties of life and therefore are considered alive A True B ) False

Hot Questions

Which of the following types of cells is most responsible for responding to color? Rods Ganglion cells Bipolar cells Cones Optic nerve

Select the correct statement regarding chemical synapses. Neurotransmitter receptors are located on the axons terminals of cells. The synaptic cleft uses the action potential to transmit a chemical signal to the postsynaptic cell. Cells with gap junctions use chemical synapses. The release of neurotransmitter molecules gives cells the property of being electrically coupled.

The __ is a capillary network that produces a blood filtrate that enters the urinary tubules. glomerulus vasa recta interlobar capillary peritubular capillary

Movement of sodium ions into the muscle cell at the neuromuscular junction causes __ A. Repolarization of the muscle cell membrane B. Depolarization of the muscle cell membrane C. Re-uptake of acetylcholine D. Release of acetylcholine

The neurotransmitters dopamine and serotonin are associated with which emotion? fear joy anger

The movement of molecules and ions from the peritubular capillaries into interstitial fluid and then into the nephron tubule iscalled __ a. secretion b. reabsorption c. excretion d. filtration

B lymphocytes are directly responsible for cell-mediated immunity. Select one: True False

In the sequence of events for inspiration, what step happens immediately after contraction of the inspiratory muscles? Air flows into the lungs Intrapulmonary volume increases Thoracic cavity volume increases Intrapulmonary pressure decreases IDONT KNOWYET

Multiple Choice Question Select the statements that best describes the relationship between genes and chromosomes. Genes are variations of chromosomes and can change the structure of the protein product. Genes are composed of long strands of DNA organized into chromosomes. Chromosomes are composed of long strands of DNA organized into chunks called genes. Chromosomes break down to form genes during meiosis so that the genes can be easily separated during gamete formation.

Which cells secrete parathyroid hormone in the parathyroid gland? Hematopoietic cells Chief cells Parietal cells Follicular cells