Answer: The correct option is A.
Biosphere and ecosystems
Explanation:
This is because Biosphere and ecosystems include non living things and biosphere is the layer of the ecosystem that consist of both living and non living things.
Ecosystem consist of a area which consist of living things like plants, animals e t.c interacting with the non living part of the environment I e physical part which include temperature, soil e.t.c.
Answer:
Mesoderm.
Explanation:
The mesoderm is one of the three germinal layers that appears in the third week of embryonic development. It is formed through a process called gastrulation. There are three important components, the paraxial mesoderm, the intermediate mesoderm and the lateral plate mesoderm.
Paraxial mesoderm, also known as presomitic or somitic mesoderm is the area of mesoderm in the neurulating embryo that flanks and forms simultaneously with the neural tube. The cells of this region give rise to somites, blocks of tissue running along both sides of the neural tube, which form muscle and the tissues of the back, including connective tissue and the dermis.
Answer:
Given:
Mass = 100 g
Volume = 45 mL
To Find:
Density
Explanation:
Formula:
Substituting value of mass & volume in the formula:
The answer is (b.) ATP and calcium
ATP (Adenosine triphosphate) and Calcium participates in the muscle movement. In a muscle contraction, Calcium ions are released to initiate upon the depolarization of the membrane which is induced by nerve impulses. While the ATP is required to the shortening of actin and myosin filament crossbridges.
