1.half of our chromosomes from our mother and half from our father
2.genes
3.brown hair
4.100%
5.probability
Potatoes because they contain starch which is a polysaccharide!
Answer:
Acts on cells in close proximity to the secreting cell.
Explanation:
In paracrine signaling, the molecules secreted by a cell show their impact on the cells which are nearby or in very close proximity.
For example:
<u>Nerve impulse transmission from presynaptic neuron to postsynaptic neuron. </u>When ever a stimulus is detected by our body, transmission of nerve impulse occurs so that our body could respond to that stimulus accordingly. During transmission, the presynaptic neuron releases signaling molecules known as neurotransmitters in the synaptic cleft which is present in between <u>presynaptic neuron and postsynaptic neurons.</u> From synaptic cleft, these neurotransmitters reach the receptors present on the neighboring postsynaptic neurons which finally transmit the message to the muscles to generate a response to the stimuli.
The speed of an object is denoted by a distance time graph.
Explanation:
The speed of an object is calculated on the basis of distance travelled in per unit of time. The distance and time graph's gradient shows the speed of the object. Distance is referred to as measure of the path between two points. Displacement is the vector quantity that measures distance with a line that is straight in nature.
The velocity of the object is represented as the speed by which the object moves in a particular direction. The acceleration of the object can be measured by a velocity - time graph.
Answer: The concentration of calcium in the myofibril must decrease.
Explanation:s soon as the stimulus which causes myofibril to contract stops, its time for muscle to relax.
A low calcium level in the protoplasm is the utmost requirement of muscle relaxation otherwise sliding of myosin will continue and muscle will keep on showing contraction. In order for muscle contraction, calcium ion i.e. Ca²⁺ must come out of the protoplasmic reticulum so for relaxation reverse process occurs i.e. Ca²⁺ is pushed back to the protoplasmic reticulum. There are many pumps known as "calcium pumps" which facilitate this process. Now, the concentration of Ca²⁺ becomes comparatively low in the protoplasm which causes troponin C to detach from Ca²⁺. Their detachment causes actin and myosin to detach from each other too which finally leads to muscle relaxation.