Answer:
Option A, 30 C
Explanation:
Plants are able to produce oxygen through the process of photosynthesis and photosynthesis is well carried in the presence of light at a warm temperature of 28 degree Celsius. The rate of photosynthesis falls if the temperature rises above 28 degree Celsius and with falling rate of photosynthesis, rate of oxygen production also falls.
The rate of photosynthesis and hence the oxygen produces also falls when the temperature falls below 28 degree celsius.
Since, the nearest temperature range is 30 degree celsius thus option A is correct
Answer:
DNA or RNA: Nucleic acid
Starches and sugars: Carbohydrates
Antibodies: Proteins
Can be utilized for energy if sugars are not available: Lipids
Hydrophobic part of the plasma membrane: Lipids
Glucose and sucrose: Carbohydrates
Explanation:
The DNA or RNA can be described as molecules made up of nucleic acids.
Carbohydrates can be described as biological molecules made up of carbon, hydrogen and oxygen. For example, starches, sugars, glucose, sucrose etc
Antibodies can be describe as a type of proteins which provide the body with immunity.
Lipids or fats are the alternative source of energy if carbohydrates are not present.
The hydrophobic tail of the plasma membrane is made up of fatty acid molecules which are lipids.
Answer:
id k im not in high school
Explanation:
Answer:
chemical change.
Explanation:
There are two types of changes in matter: physical change and chemical change.
physical change- it is a change in matter that alters only its physical properties or its physical appearance. This type of change is reversible. For example- freezing of water, the water turns into solid ice and it can be reversed by melting the ice.
chemical change- it is a change in matter that alter its chemical and thus its physical properties. Most chemical changes are irreversible. for example- burning of paper, results in black soot and ashes- Thus changing both physical and chemical properties.
