Genetically modified crops __ . need more fertilizer need more water could reduce biodiversity D cannot tolerate herbicides produce lower yields

Identify the key features that distinguish gymnosperms from angiosperms. Gymnosperms have cones instead of flowers. Gymnosperms have a dominant gametophyte stage. Gymnosperms do not have fruit. Only gymnosperms form a micro spore.

Venous return does not depend on respiratory movements. the presence of valves. skeletal muscle contractions. blood pressure.

The chief force pushing water and solutes out of the blood across the filtration membrane is __ 1) the design and size of the podocytes 2) the thickness of the capillary endothelium 3) glomerular hydrostatic pressure (glomerular blood pressure) 4) the size of the pores in the basement membrane of the capillaries

When is hydrostatic pressure greater than osmotic pressure? Hydrostatic pressure is never greater than osmotic pressure. At the arterial end of the capillaries. At the venular end of the capillaries. At the midpoint of the capillaries.

Water molecules move through plants into the atmosphere through: precipitation condensation percolation transpiration

This type of bone is also called cancellous bone epiphyseal line endochondral ossification sesamoid bone long bone compact bone spongy bone epiphyseal plate appositional growth secondary bone primary bone longitudinal growth

Round, flat bone found within a tendon longitudinal growth sesamoid bone epiphyseal line compact bone spongy bone primary bone endochondral ossification epiphyseal plate long bone appositional growth secondary bone

Compact bone forms concentric rings that make it extremely hard and strong so it can resist linear compression and twisting and build a framework for bone marrow. resist forces from many directions and build a framework for bone marrow. resist stress and protect the inner spongy bone. resist forces from many directions and protect the spongy bone.

What happens to the chromosomes of diploid parent cells during meiosis? A. The chromosomes are replicated twice to produce four identical copies in the daughter cells. B. Homologous chromosomes are separated, and then sister chromatids are replicated to double their number. C. The chromosomes are divided twice: first by separating pairs of homologous chromosomes, and then by separating sister chromatids. D. Homologous chromosomes are replicated to form tetrads, which are grouped together in four new daughter cells.

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