Your answer would be A, plant cells have rigid walls and no centrioles.
The most likely to be found in a dichotomous key for identifying a tree by its leaves are the leaf bases attached opposite to each other on the branch.
<h3>How is a dichotomous key used to identify species?</h3>
A dichotomous key is an essential scientific tool, used to identify different organisms, established the organism's observable characters. Dichotomous keys consist of a series of statements with two choices in each step that will lead users to the correct identification.
Thus, option "c" is correct.
To learn more about dichotomous key click here:
brainly.com/question/2235448
Answer:
120 gramos de CO₂
Explanation:
La ecuación química balanceada para la combustión del hidrocarburo propano (C₃H₈) es la siguiente:
C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O
Por lo tanto, 1 mol de C₃H₈ produce 3 moles de CO₂. Para convertir las moles a gramos usamos el peso molecular (PM) de cada compuesto:
PM(C₃H₈)= (3 x 12 g/mol C) + (8 x 1 g/mol H) = 44 g/mol
masa de C₃H₈ = 1 mol x 44 g/mol = 44 g
PM(CO₂) = (1 x 12 g/mol C) + (2 x 16 g/mol O) = 44 g/mol
masa de CO₂ = 3 mol x 44 g/mol = 132 g
Ahora podemos ver que se producen 132 gramos de CO₂ (3 moles) a partir de 44 gramos de C₃H₈ (1 mol) ⇒ 132 CO₂/ 44 g C₃H₈
Multiplicamos la relación estequiométrica por la cantidad de propano que tenemos para calcular la cantidad de CO₂ producida:
40 g C₃H₈ x 132 CO₂/ 44 g C₃H₈ = 120 g CO₂
Entonces, se producen 120 gramos de dióxido de carbono al quemar 40 gramos de hidrocarburo C₃H₈.
Answer:
Id love to help but what diagram?
Explanation:
genetic drift
Explanation:
Genetic drift is changes in allele frequencies of a gene pool due to chance or random events. This can occur in large or small populations. Genetic drift causes gene pools of two isolated populations to become dissimilar as some alleles are lost and other are fixed.
