Answer:
B
Explanation:
The cell membrane is like a gate around the cell, it only lets certain substances come in and out of the cell.
Answer:a mscle which controls the body
Explanation:
Answer:
What factors differentiate Earth's atmospheric layers?
A. Pressure and Rate of condensation
B. Radiation deflection and Rate of condensation
C. Temperature and Pressure
<h2>D. Temperature and Radiation deflection</h2>
The term ‘Crossing over’ was used by Morgan and Cattell. It is a process in which there is exchange of chromosome segments between non-sister chromatids of a homologous chromosomes. It occurs during pachytene stage of prophase I of meiosis cell division.
Significance of crossing over:
- Crossing over provides genetic variation in all sexually reproducing organisms.
- It creates new combination of genes or genetic recombination and produces hybrids.
Answer:
a
Explanation:
both of the cases the organisms are fighting for a resource
