Answer:
a. A chemical derived from dead bacteria can produce heritable changes in the traits of living cells.
Explanation:
In 1928 Griffith conducted an experiment with two strains of bacteria <em>Streptococcus pneumoniae</em>, II-R and III-S. III-S was a virulent strain which killed the mice on injecting with it while II-R strain was non virulent and did not harm the mice. When heat killed III-S strain was injected into mice,they again survived because the bacteria were dead.
Griffith then injected heat killed III-S and live II-R strain into the mice. To his surprise, the mice died. He then concluded that living cells of non virulent II-R strain had inherited a chemical from heat killed virulent III-S strain and thus were able to kill the mice. This chemical was called as transforming principle and later was discovered to be DNA. Non virulent strain had been transformed into virulent strain by taking up the DNA from the latter.
Answer:
True
Explanation:
Eating well helps to reduce the risk of physical health problems like heart disease and diabetes. It also helps with sleeping patterns, energy levels, and your general health. You may have noticed that your mood often affects the types of food you choose, as well as how much you eat.
Become a positive influence.
Try to do things that made them happy like their favorite activity or watch their favorite show.
Do small things of affection because those eventually add up.
Ask everything in your power to make them feel loved as you more than likely do.
Hope this helps!
Your answer would be .... B
<span>Anyone
telling you cardio burns fat is dead wrong. If you plan on doing
steady-state cardio (running laps non-stop) work, you MUST have a heart
rate monitor and stay within a very specific heart rate range. Most
steady-state cardio for even lean athletes puts their heart beyond a
fat-burning range very quickly..................
ALSO:
</span>
<span>If
you have or can get a heart rate monitor, great. You'll need to do some
ground work to determine your heart rate zones, but this is the only
guaranteed way to ensure you're burning fat, not muscle.
If you don't have a HRM, interval training is your next best bet. Do 60
(yes sixty) sets of 8 seconds of full on sprinting/cycling/etc. followed
by 12 seconds of rest/recovery effort.
If that sounds like something you can't or won't do, lifting heavy
weights is the next best option. Building lean muscle mass will drive
your metabolism and force your body to burn more calories (at a lower
heart rate) than steady-state cardio. I hope this helps you ^-^</span>
