Answer:
B
Explanation:
XX is female they produce eggs. XY is male. they produce sperm
Answer:
Skeletal muscle tissue is composed of cells called muscle fibers. When the nervous system signal reaches the neuromuscular junction a chemical message is released by the motor neuron. The chemical message, a neurotransmitter called acetylcholine, binds to receptors on the outside of the muscle fiber.
I think it’s because you have trouble breathing
<span>Sunlight emits light energy which is absorbed by the thylacoids in
the chloroplasts of a plant. Chloroplasts are organelles in a plant
cell whose funtion is photosynthesis (the use of light to make
energy). Thylacoids are a part of the chloroplast which absorbs
light. The thylaciods convert the light into energy molecules NADPH
and ATD. The Calvin cycle then takes place in the stroma
(gellatinous matrix of the chloroplast). The Calvin cycle is the
use of ATP and NADPH plus carbondioxide to produce starch. Starch
is the polysaccharide sugar formed from glucose synthesized in a
linear chain. The starch is the storage of the glucose which is
used as an energy source for the plant cells. </span>
To separate the pebbles you should hand pick it,
meaning-from the word itself, you don’t have to use any kind of instrument but
your hand.
On the other hand, to separate the mud you can use
decantation or sedimentation or filtration.
To separate the husk you have to use sieving.
