The deepest parts of the ocean are hostile to life. A barren stretch of sea floor recently experienced an earthquake that opened up a hydrothermal vent. This vent provides heat and nutrients. Over time, the area became filled with various deep-sea life forms. What kind of ecological activity is this?
Answers: 3
Biology, 21.06.2019 19:30
Place the steps tor the formation of the enzyme pepsinogen in correct order
Answers: 1
Biology, 21.06.2019 22:00
How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.
Answers: 1
Biology, 22.06.2019 13:20
Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).
Answers: 2
The deepest parts of the ocean are hostile to life. A barren stretch of sea floor recently experienc...
Social Studies, 28.06.2019 00:10
Social Studies, 28.06.2019 00:10
Chemistry, 28.06.2019 00:10
Social Studies, 28.06.2019 00:10
Social Studies, 28.06.2019 00:10
Social Studies, 28.06.2019 00:10
Chemistry, 28.06.2019 00:10