Biodegradable water bottles
The embryonic stage lasts approximately 4 week(s), beginning at conception. Details about stages of development can be found below.
<h3>What are the stages of development?</h3>
The stages of development of a human is summarized into four stages as follows:
- Embryonic stage
- Germinal stage
- Fetal stage
In the embryonic stage of development, which occurs after conception, the baby is called an embryo. Embryonic stage lasts 4 weeks.
During the embryonic stage, the cells of the embryo (called embryonic stem cells) multiply and develop. They become the hundreds of different types of cells needed to make a whole human body.
Learn more about embryonic stage at: brainly.com/question/14233911
#SPJ1
RrTt ....means brown leaves and tall stems !
so answer is D !
Ans.
Hormones are regulatory substances synthesized by various plants and animals and play role in proper growth, development, and maintain homeostasis. Hormones are released by signalling cells and show their actions after binding to specific receptors present on the surface or inside of the target cell.
Hormones, for which receptors are present inside the cells (in cytosol or nucleus) should be hydrophobic in nature. This is because plasma membrane is made up lipid molecules and small, hydrophobic, uncharged molecules can easily pass through this. For example, cortisol, estrogen, and progesterone hormones are lipid-derivatives and receptors for these hormones are present inside the cells.