Answer:
the main site of gas exchange is in the lungs between the alveoli and a family of really small blood vessels called capillaries. Which are placed in the walls of the alveoli.
Explanation:
Mood: anxiety, apathy, general discontent, guilt, hopelessness, loss of interest, loss of interest or pleasure in activities, mood swings, or sadness
Sleep: early awakening, excess sleepiness, insomnia, or restless sleep
Whole body: excessive hunger, fatigue, loss of appetite, or restlessness
Behavioral: agitation, excessive crying, irritability, or social isolation
Cognitive: lack of concentration, slowness in activity, or thoughts of suicide
Weight: weight gain or weight loss
Also common: poor appetite or repeatedly going over thoughts
Answer:
Acids lower the pH of freshwater and bases raise the pH of freshwater.
Explanation:
If a substance is too basic, it could possibly harm another organism living in the freshwater source. If it's too acidic, it could possibly make unsafe living conditions in that environment. That's why you should always check the pH level in the fish tank and in the pool to see what the pH is. A pH of 6 - 8 is always safe for fish, whereas a pH of 5 - 9 is safe for pools.
Explanation:
Acids: 0 - 6
Neutral: 7
Bases: 8 - 14
The time in between periods isn’t just a three-week lull, but a hormone-driven dance of biology. Ignoring that is like watching a ballet theater from the outside, going “hmm, a lot of people leave that building at 11pm on Saturday nights.” That only happens because because something really interesting is going on inside.
The first day of a woman’s period is considered Day 1 of the cycle, just because it’s the one event in the month you’re sure to notice. So that’s where we synchronize our watches.
The first day of a woman’s period is considered Day 1 of the cycle, just because it’s the one event in the month you’re sure to notice. So that’s where we synchronize our watches.
