"Seeds formed after combining pollen and egg cells during sexual reproduction" is the one among the following that <span>best describes reproductive structures common to both gymnosperms and angiosperms. The correct option among all the options that are given in the question is the first option or option "A". </span>
Answer:
Pangaea
Explanation:
When Laurentia and Gondawana, two minor supercontinents, collided, they created the Pangaea supercontinent.
The viscosity of blood is directly proportional to resistance and inversely proportional to flow; therefore, any condition that causes viscosity to increase will also increase resistance and decrease flow. For example, imagine sipping milk, then a milkshake, through the same size straw.
Answer:
The correct answer is: False.
Explanation:
- A Fishery collapse can be defined as the condition in which the composition of different species of fishes forming a food chain or a food web and located in a marine or aquatic community undergoes a drastic alteration.
- The alternation can be caused due to environmental or anthropological factors.
- A fishery collapse usually affects the larger fish population like sharks and tuna as their commercial and economic demand is higher.
- Excessive fishing cause the population of the large fishes to decline without affecting the small fish population.
- This is because the small fishes do not have high economic or commercial demand, hence they have very less probability of being angled or captured.
Answer: Chemical changes are different from physical changes because chemical changes have a chemical reaction.
Explanation: A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Often, physical changes can be undone, if energy is input. It's on google.