Answer;
-Single
All organisms begin life as a single cell
Explanation;
-Every living organism begins life as a single cell. Unicellular organisms may stay as one cell but they grow too. Multicellular organisms add more and more cells to form more tissues and organs as they grow. Growth and development of living organisms are not the same things.
-In unicellular organisms such as bacteria, mitosis is a type of asexual reproduction, making identical copies of a single cell. In multicellular organisms, mitosis produces more cells for growth and repair.
Electrons are transferred sequentially between the two photosystems w photosystem I acting to generate NADPH and photosystem II acting to generate ATP the pathway of electron flow starts at photosystem II which is homologous to the photosynthetic reaction center of R (Brainliest Answer Will be appreciated:D)
During interphase, cellular organelles double in number, the DNA replicates, and protein synthesis occurs.
Answer:
Option C, The cell membrane allows water to enter and leave the cell.
Explanation:
Options for the question are –
A. The cell membrane is an impermeable barrier that prevents water from entering the cell.
B. The cell membrane allows solutes to enter the cell, which causes the cell to shrink.
C. The cell membrane allows water to enter and leave the cell.
D. The cell membrane removes solutes from the environment.
Solution -
The cell membrane is semi permeable to water and some other substances. Whenever there is a difference in concentration or volume on the two sides of the membrane, either the solute or the solvent starts moving till equilibrium is reached. In few cases, the flow continues uninterrupted thereby increasing the cell size to its maximum extent and hence bursting it.
Hence, option C is correct
The testes is responsible for
creating sperm cells. It is the male reproductive organ found below the penis.
