Is this a multiple choice question or...??
If not, I'd say, that its simple as scientists can easily decipher which variable caused the situations result. And thats because you may have one manipulated variable to be able to know the responding variable.
Vascular plants that have seeds surrounded by fruit are called as Angiosperms.
<h3>
Explanation:</h3>
Plants that have specialized vascular tissues that carry materials from one part of the plant to another is a vascular plant. The two types of vascular tissue, xylem and phloem, help in transportation of water, minerals, and the products of photosynthesis throughout the plant. Two types of vascular plants that produce seeds are : Gymnosperms and Angiosperms.
Gymnosperms are plants whose seeds are not enclosed by a fruit. The seeds are unenclosed or present on the surface or leaves. These seed are configured as cones. E.g: Cedar, pine
Angiosperms are fruit-bearing flowering plants with their seeds enclosed inside a fruit or flower. E.g: Apple, Eggplant
Answer:
In diarrhea, gut motility is increased. Whatever is ingested, comes out quicker.
Polio drops contain attenuated polio virus. Once given, a large proportion of this viral dose stays in intestine and proliferates to show it’s effect.
If given during diarrhea, with increased motility of gut, most of it will be thrown out fast, resulting in to lesser efficacy. For this very reason we wait till diarrhea is over.
Explanation:
:)
Would it be b because diseased cells will die.
Answer: Higher infant mortality rates cause higher fertility rates.
Explanation:
Countries with high infant mortality rates are usually countries where families rely on children to help out the family. High infant mortality rates and a need for children means that those people will continue to try to have children until they have some that survive. If more children die, and people need to have more children, there will be a higher fertility rate.