Answer:
Climate changes, A loss of habitat
Explanation:
Carbon Dioxide warms the Earth, making more climate change
If the temperatures drop, creatures in cold regions will die <3
Hope this helped!
Answer:
A) One band of intermediate density and one band of heavy density.
Explanation:
According to semi conservative model of replication the two DNA strands separate during replication such that the new DNA molecule has one parental strand and one new strand. In this experiment, originally E.Coli cells were grown in 14N medium so all the DNA strands had 14N. When the medium was changed to 15N, only 15N would be available to the cells for replication.
After first round of replication all DNA molecules would be of intermediate density as one strand would be old 14N strand and another would be new 15N strand. After second round of replication 15N strand would be formed from both 14N strand and 15N strand. So, one band will be formed of intermediate density (14N-15N) and another would be of heavier density (15N-15N).
<span>C. Autonomic have a nice day</span>
I have reason to believe that 2 is the answer, because since all individual pathogens are the same, they will all react in the same way to the antibiotic. thus natural selection will exterminate them the fastest.
Here are the reason why joining flocks will increase their chance of survival:
- Protection from predator
Their predator (such as falcons) can only get one bird at a time. Joining a flock will reduce their chance of being caught because they are moving in large unstoppable mass.
- Conserving heat
Being around the flock will help them maintain their body temperature to survive a harsh winter.
