Which of these statements best defines the term Middle Ages?A. The period before the growth of the Catholic Church around the world.
B. The period of interaction beween the Islamic and Mongol empires.
C. The period between the Greek and the Roman dominance over European culture.
D. The period following the decline of the Roman Empire in Europe.

The correct answer is:

D. A phosphate group is removed from atp to form adp.

Explanation:

ATP normally produces energy by breaking down the weak phosphate cell present.  The energy delivered due to the breaking down of the phosphate cell is then applied. The ATP is modified to ADP. Whenever a cell feels the necessity for energy it loses a phosphate to assume the energy. It is an automatic and ongoing process. The weak bond between the secondary and the third phosphate is always targeted for converting ATP to ADP. This is the reason ATP is reflected in the main energy money for the cell.

Answer: The correct answer is- light, temperature, animals, plants, topography, and growing seasons.

Habitat can be described as an area or an environment where a particular species of plant, animal or any other living organism is naturally found.

In other words, habitat is a place that supports life of a species. The presence of various biotic and abiotic factor support different habitats.

Environmental factors that create different habitats include:

• light ( in terms of quality, time period, and intensity)

• temperature ( such as extremely high temperature creates dry weather conditions where xerophitic plants are found).

• topography ( study of earth surface such as mountains, valleys, rivers that support different habitats)

• growing seasons

• animals

• plants

Answer: Ribosomes

Explanation:

Eukaryotic cells contain membrane-bound organelles, for example animal cells and plant cells. While prokaryotic cells don't, for example bacteria.

Since chloroplasts, mitochondria and endoplasmic reticulum are membrane-bound organelles, which meas that these organelles are surrounded by a phospholipid bilayer, they are only found in eukaryotes.  

Endoplasmic reticulum is responsible for protein folding, modification and transport. Chloroplast is responsible for photosynthesis in plants, and mitochondria is responsible for cellular respiration. And, ribosomes is the organelle where protein synthesis takes place, and this happens in both Eukaryotic and Prokaryotic cells.

Answer: By increasing the rate of reaction by lowering the activation energy.

Explanation:

A catalyst can be defined as the substances that can increase the rate of reaction by lowering the activation energy. This saves more energy for the reaction to take place.

The rate of reaction can be increased by several factors such as temperature, pH and catalyst.

Some of the catalyst are: Enzyme, molybdenum.