The specialized organ that provides nourishment and filters away waste products from the developing baby is called the placenta.
<span>The placenta is a multifunctional organ that develops during the pregnancy. It connects the developing fetus to the uterine wall and it functions are to allow nutrient uptake, thermo-regulation, production of hormones waste elimination, protection (fight against infection) and gas exchange via the mother's blood supply. <span>The fetus's umbilical cord develops from the placenta.</span></span>
The statement in the beginning of the question, "scientists have found that although plants require light to carry on photosynthesis Very high levels of sunlight can kill some plants" suggests that there is a certain range of levels of sunlight that plants can survive in. Therefore, only choice B. with a specific range of conditions is supported by the evidence. Hope I could help.
Answer:
D.) Rocky
Explanation:
The crust is the top layer of the Earth which is relatively thin in comparison to other layers. The upper layer of Earth is called lithosphere.
The crust is composed of variety of rocks such as metamorphic, igneous, and sedimentary rocks. Below the crust, is the mantle which is also composed of rocks but also have semi-solid magma.
Hence, the correct answer is "D.) Rocky".
It means that they are not like pre-set blueprints. They react differently according to changes in the environment.<span />
Answer:
depending variable
Explanation:
only thing changed in the experiment is uv light
