Which cytoplasmic extensions carry impulses towards the cell body?
Correct answer B. Dendrites
Topic / 1,500 questions
Biology MCQs
Page 33 of Biology multiple-choice questions with answers. Tap an option to check yourself.
Page 33 of 75
Which neuron has a single long dendron?
Correct answer C. Sensory neuron
In which type of neuron is the dendrite (dendron) longer than the axon?
Correct answer A. Sensory neuron
Advertisement
Which of the following lacks a central nervous system?
Correct answer B. Hydra
What is the chemical nature of insulin and glucagon?
Correct answer C. Protein
What is an animal that captures and kills living animals for food called?
Correct answer D. Predator
When an action potential begins, Na⁺ gates open and Na⁺ ions flow in. What kind of process is this?
Correct answer A. Passive transport
Which organ produces the hormone secretin?
Correct answer B. Duodenum
Who was the first to put forward an objective definition of instinct?
Correct answer B. Darwin
Advertisement
What is the simplest form of learning?
Correct answer C. Habituation
Gibberellins can substitute for which light, so promoting flowering in long-day plants?
Correct answer C. Red
Which group of tracheophytes is leafless?
Correct answer C. Psilopsida
In which tracheophytes do sporangia develop singly on the upper surface of sporophylls, which may or may not form strobili?
Correct answer A. Lycopsida
Which group of tracheophytes has expanded or scale-like leaves always arranged in whorls?
Correct answer B. Sphenopsida
The stem of Psilophyton, a psilopsid, is differentiated into an underground rhizome and an aerial part. How are both parts branched?
Correct answer D. Dichotomously
Advertisement
Maize is an example of which type of plant?
Correct answer C. Monocot
Which statement about dicots is incorrect?
Correct answer D. They have parallel vein pattern on their leaves
What is the first cell of the sporophyte generation?
Correct answer C. Oospore
Which floral feature is characteristic of monocots?
Correct answer D. Sepals and petals in threes or multiples of three
Which part of the bryophyte sporophyte is the sporangium?
Correct answer C. Capsule