<span>Dr. Jack Horner's discovery shower that dinosaurs and the very first birds lived at the same time. He noticed similarities in their features and habitat. This supported his hypothesis and later proved that birds evolved form dinosaurs.</span>
I think the answer is Gentoo Penguins.
It requires energy & It involves the help of carrier proteins
<u>Answer:</u>
Movement of matter passes through the ecosystem in the form of cycle, web, chain etc., between the living and non-living things. The base is the energy derived from sun. They involve all living organisms, air, water, soil etc. Matter never gets wasted instead utilized.
Matter is recycled in the ecosystem but energy is not.
Energy is transferred from one organism to another approximately by 10% where balance of 90% is lost in the form of energy. The higher the levels in the food chain more exhaustion of energy due to work.
The answer to your question is Sclerenchyma cells have thick lignified secondary walls. Answer: Sclerenchyma