Select the correct statement $:-$
- AIn closed circulatory system cells and tissues are directly bathed in blood.
- BFlat worms have single opening out of body so it is called complete digestive system.
- CAnnelida are first protostomiates
- DIn open circulatory system cells and tissues are directly bathed in blood.
Explore More
Similar Questions
If $\int \frac{e^x-1}{e^x+1} d x=f(x)+c$,then $f(x)$ is equal to
The current through an ideal $PN-$ junction diode shown in the following circuit diagram will be.....$mA$.
$z=\tan (y+a x)+\sqrt{y-a x} \Rightarrow z_{x x}-a^2 z_{y y}$ is equal to
The equation of the circle whose diameter is the common chord of the circles $x^2+y^2+2x+3y+2=0$ and $x^2+y^2+2x-3y-4=0$ is
The work functions for metals $A, B$ and $C$ are respectively $1.92\, eV$,$2.0\, eV$ and $5\, eV$. According to Einstein's photoelectric equation,the metals which will emit photoelectrons for a radiation of wavelength $4100\, \mathring{A}$ is/are:
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo