Answer:
Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. ... Movement across a selectively permeable membrane can occur actively or passively. For example, water molecules can move passively through small pores on the membrane.
Explanation:
Answer:
fewer in number.
Explanation:
A low sperm count also known as oligospermia can be defined as a medical condition which typically involves a man (adult male) having fewer than 15 million sperm per millilitre of semen.
Basically, low sperm count (oligospermia) is usually caused in men due to health and lifestyle factors such as smoking, alcohol or drug abuse, obesity, genetics, sexually transmitted infections (STIs), age etc.
Hence, smokers, alcohol abusers, overweight and obesity men are more likely to have sperm which are fewer in number i.e fewer than 15 million sperm per millilitre of semen.
Generally, a healthy or normal sperm motility ranges from over 20 million to 200 million sperm per millilitre of semen.
Answer:
Answer ..... Decongestants, Amphetamines and over-the- counter cold medications.
Explanation:
The above mentioned drugs require caution while administering them to an older adult with heart failure developed due to hypertension , this is because the drugs have the tendency of increasing water retention and increasing cardiac load. And this is very dangerous for such person.
Note that , Long -acting sedatives and narcotics can be administered safely, because they have no negative effect on cardiac function.
I have a lot... But, I'll give two like you wanted.
1. They all need blood so that they can stay alive and keep you breathing
2. There's mucus somewhere around the lungs of all living things...
(brainliest maybe?)
