Answer:
d. visual signal
Explanation:
Changing color by cephalopods ssuch as squid & octopi is a type of visual signal which helps in communication. These creatures are highly social animals and for social behavior communication is a must. So, in order to communicate effectively, they often change the colors and patterns of their skin. Initially this ability to change color was meant for camouflage but later on these animals started using this ability to communicate. The control centre of such visual signals is their brain which can manipulate thechromatophores within their body. They usually use such visual signals during courtship rituals and hunting.
B. During carbon fixation
C. Immediately after reduction
D. Immediately after regeneration
The answer is C. The Calvin cycle occurs in the stroma o the chloroplast in a plant cell. It involves the dark stage where carbon dioxide is reduced by protons created in photolysis from the light stage of photosynthesis. The 3-phosphoglyceric acid (3-PGA) is phosphorylated by ATP and then immediately reduced by NADPH in the reduction step. After reduction, G3P is formed and exits the cycle. Other G3Ps are regenerated into a ribulose-1,5-bisphosphate (RuBP) acceptor molecule for the cycle to continue.
the answer is c i just did it
Answer: The correct answer is-
Bacteria and archaea differ in the biochemical composition of their cell wall as bacteria have peptidoglycans in their cell wall whereas archaea do not have peptidoglycans.
Bacteria and archaea are the two groups of prokaryotes ( as they lack nucleus and membrane bound organelles) that occupy two distinct domains according to three domain system classification of Carl Woese.
They both are single celled, microscopic organisms. Archaea live in extremenly harsh environmental conditions ( such as hotsprings) whereas bacteria live in moderate environmental conditions.
Eating snacks of potato chips from the bag in between meals least improve Jordan's overall fitness. Potato chips give zero nutrition and increases calorie intake that makes it hard to burn. Jordan should stop eating them.
Answer:
Ear More Meals At A Restaurant
Explanation:
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Answer:
“A cell is defined as the smallest, basic unit of life that is responsible for all of life’s processes.”
Cells are the structural, functional, and biological units of all living beings. A cell can replicate itself independently. Hence, they are known as the building blocks of life.
Each cell contains a fluid called the cytoplasm, which is enclosed by a membrane. Also present in the cytoplasm are several biomolecules like proteins, nucleic acids and lipids. Moreover, cellular structures called cell organelles are suspended in the cytoplasm.
Prokaryotic cells have no nucleus. Instead, some prokaryotes such as bacteria have a region within the cell where the genetic material is freely suspended. This region is called the nucleoid.
They all are single-celled microorganisms. Examples include archaea, bacteria, and cyanobacteria.
The cell size ranges from 0.1 to 0.5 µm in diameter.
the hereditary material can either be DNA or RNA.
Prokaryotes reproduce by binary fission, a form of sexual reproduction.
Eukaryotic cells are characterised by a true nucleus.
The size of the cells ranges between 10–100 µm in diameter.
This broad category involves plants, fungi, protozoans, and animals.
The plasma membrane is responsible for monitoring the transport of nutrients and electrolytes in and out of the cells. It is also responsible for cell to cell communication.
They reproduce sexually as well as asexually.
There are some contrasting features between plant and animal cells. For eg., the plant cell contains chloroplast, central vacuoles, and other plastids, whereas the animal cells do not.
Osmosis is a passive process and happens without any expenditure of energy. It involves the movement of molecules from a region of higher concentration to lower concentration until the concentrations become equal on either side of the membrane.
Any solvent can undergo the process of osmosis including gases and supercritical liquids.
An isotonic solution: is one that has the same concentration of solutes both inside and outside the cell.
A hypertonic solution: is one that has a higher solute concentration outside the cell than inside.
A hypotonic solution; is the one that has a higher solute concentration inside the cell than outside.
Osmosis affects the cells differently. An animal cell will lyse when placed in a hypotonic solution compared to a plant cell. The plant cell has thick walls and requires more water. The cells will not burst when placed in a hypotonic solution. In fact, a hypotonic solution is ideal for a plant cell.
An animal cell survives only in an isotonic solution. In an isotonic solution, the plant cells are no longer turgid and the leaves of the plant droop.
The osmotic flow can be stopped or reversed, also called reverse osmosis, by exerting an external pressure to the sides of the solute. The minimum pressure required to stop the solvent transfer is called the osmotic pressure