The grain size for location D (hornfels) is fine.
Answer: Acokanthera schimperi (Arrow Poison Tree) is a species of tree in the family Apocynaceae. It has a self-supporting growth form. It has simple, broad leaves. Arrow Poison Tree is a photoautotroph.
Explanation: The bark, wood and roots of Acokanthera schimperi are used as an important ingredient of arrow poison in Africa. All plant parts contain acovenoside A and ouabaïne, which are cardiotonic glycosides. Its fruit is edible, and is eaten as a famine food. When ripe they are sweet but also slightly bitter. Unripe fruits have caused accidental poisoning as they are highly toxic.[3]
The maned rat spreads the plant's poison on its fur and becomes poisonous.[4]
It is also used in traditional African medicine.[5] In Ethiopia, for example, Acokanthera schimperi leaves have been traditionally used for jaundice.
There seeds are dispersed by,
Other methods of dispersal
Some plants don’t invest much energy in complex mechanisms for dispersal. Bluebells or wild hyacinths (Hyacinthoides non-scripta) are one example of a plant that simply drops its seeds directly to the ground. However, the result is that such plants will tend to spread and colonise new areas very slowly indeed.
<span>In animal cell mitosis, he cleavage furrow forms during the early anaphase of the cell cycle. It's caused by a ring of actin microfilaments, called the contractile ring. The actin filaments are both pre-existing and new. The contractile ring tightens around the cytoplasm of the cell.</span>
F) mollusca
"Mollusca is the second largest phylum of invertebrate animals. The members are known as molluscs or mollusks (/ˈmɒləsk/). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species."
D, because if you burn fossil fuel the smoke while burning the fossil fuel is carbon dioxide and we live off fossil fuel and that means we use a lot of fossil fuel.