Answer:
Penguins in general are distributed close to each other to be able to withstand the extreme cold, characteristic of the ecosystems they inhabit. They also group together to incubate their eggs.
They perform a series of coordinated movements that help them fight low temperatures, being careful to drop the egg.
Answer:
enrich the soil with nutrients
Explanation:
Hey there,
When lifting, the paramedic should spread his or her legs <span>shoulder-width</span> apart?
This reason could be understandable and common sense. You do not want to open someones legs like the size of your full arm, because you could break there legs, this is why it is necessary why to do this.
~Jurgen<span />
Answer:1.c 2.d 3. d
Explanation:
The DNA hyperchromic effect can be defined as the absorbance of radiation or light by the nitrogen bases of DNA. This phenomena is effective when the DNA is in single stranded condition. For observing the hyperchormic effect the DNA is required to be denatured at high temperature or by increasing the level of pH.
The two strands of the DNA when get separated the absorbance of the DNA solution also increases. This results due to reduction in the base-base interaction and hence, increases the absorbance of light like UV by the bases.
Answer:
b) Travel quickly, allowing rapid transmission of signals:
Explanation
nervous system is a complex collection of nerves and specialized cells known as neurons that transmit signals between different parts of the body very rapidly.
