InezSkoczylas97 InezSkoczylas97

12-09-2015
Geography

contestada

According to the theory of evolution, birds' feathers evolved from.
a. reptile scales
b. gill slits.
c. fish fins.
d. gill arches.

Respuesta :

HistoryGuy HistoryGuy

17-09-2015

According to the theory of evolution, birds' feathers evolved from "reptile scales"--specifically the scales of dinosaurs if one search far enough back in time, which seems counterintuitive because scales are so hard.

Answer Link

Otras preguntas

Name and write the structures of all isomers of the propyl and butyl alkyl groups.

How does nuclear fission differ from nuclear fusion? Why are both of these processes exothermic?

What is the simplified base for the function f(x) = 2(3√27(2x)? 2 3 9 18

Simplify the expression using synthetic division. (6x3 – 84x2 + 264x – 240) ÷ (x – 10) quotient 6x2 – 144x – 1176 and remainder 11,520 quotient 66x2 + 576x –

the ratio of dogs to cats at a local animal shelter is 13/25. Which statement must be true? a. for every 13 dogs, there are 25 cats. b. there are twice as many

Simplify the given expression. –10xy(4xy3 – 7xy + 9y2) –40x2y4 – 7x2y2 + 9x2y3 –40x2y4 + 70xy + 90y2 –40x2y4 + 70x2y2 – 90xy3 –40x2y4 – 7xy + 9y2

find the distance and midpoint of the line segment with endpoints (4,3) and (5,-2) i know the answers i just need an explanation

If the length of one leg of a right triangle is 4 and the hypotenuse is √65 , what is the length of the other leg?

Is my answer correct?

A proposed change to federal income tax laws would eliminate deductions from taxable income for donations a taxpayer has made to charitable and educational inst