Answer:
Anaerobes are not able to have growth in the presence of much of oxygen environment as they do not have catalse .Catalse is the enzyme for clearance of oxygen.There are also anaerobes protects their own self from oxygen by production of an enzyme known as super oxide dismutase. Therefore, it is not easy task for creation an oxygen-absent environment for anaerobes in the vitro so they cannot be grown in vitro.
Answer:
The physical space between the presynaptic and postsynaptic neurons is called the synaptic cleft
and the chemical that is released to signal across this space is called a neurotransmitter
Explanation:
A synapse is the junction between dendrites of two adjacent neurons. Its function is to allow the transmission of nerve impulses from neurone to neurone. Tn the presynaptic knob there are vesicles which contain a transmitter substance which is usually acetylcholine. The acetylcholine diffuses from the presynaptic membrane to the postsynaptic membrane.
Ph in ground water ranges from 6.5 to 8.5 any higher would be low-quality so the answer would most clearly be Low levels of fecal coliform.
In bryophytes, haploid reproductive cells are produced by the gametophyte. <span>Gamete-producing organs are found on gametophyte plant (the dominant form) and they are called gametangia. The haploid organ that produces male gametes is antheridia, and female producing organ is called archegonia (it produces ovum).</span>
