Which of these would form first during the development of a complex multicellular organism, such as an animal? a) cell b) organ c) tissue d) organ system

The correct answer is option A, cell

reason -

For being a  multi cellular organism, the organism first need to have multiple cells and thus the first stage of development shall comprise of multiple cell production. In the next stage several multiple cells combine to form a tissue which further reorient  to transform themselves into an  organ. A group of organs is referred to as an organ system and further group of organ systems leads to formation of an animal /species

currents is the correct answer.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles