Answer:
Explanation:
The first few hours after the heart attack begins is the critical period, in this period, literally every second counts, and the quicker the blood flow restored and the treatment instituted, the better the chances of survival, and the better the chances of keeping the heart muscle alive. Ive never had one and hope noone ever does.. please be safe
In general, coding regions are more likely to have the same sequence. It is more likely to produce a non-functional gene product (protein).
Non-coding mutations are free to mutate because it has no protein product, and are less likely to affect phenotype. They are neutral mutations. Different mutations can be differentiated even when different groups have the same coding sequence.
Answer:
Why control group is important for scientific study?
In a scientific experiment, the control is the group that serves as the standard of comparison. ... The control group is exposed to the same conditions as the experimental group, except for the variable being tested. All experiments should have a control group.
Explanation:
Answer:
1-a 2-a 3-a
1. The first living organism in a food chain is
a) producers
b) primary consumers
c) heterotroph
d) chemosynthesizer
2. The second living organism in a food chain is generally...
a) herbivore
b) carnivore
c) detrivore
d) a photoautotroph
3. Plants use nitrogen to grow and are generally helped by cycling N from the air to the land by bacteria in a process called...
a) nitrogen fixation
b) denitrification
c) decomposition
d) emmigration
