Bissoy.com
Doctors Medicines MCQs Q&A

Which of these characteristics is true about the vascular system of cockroach?

Which of these characteristics is true about the vascular system of cockroach? Correct Answer Poorly developed blood vessels

The vascular system in cockroach is of open type. They have poorly developed blood vessels which open up into the haemocoel, where visceral organs are located. The hemolymph is colorless and contains hemocytes and plasma.

Related Questions

In seed plants and the ferns, the parenchymatous region in the stem is devoid of vascular elements, but the region is limited to only a short distance up, beyond which the vascular tissue is present. These parenchymatous regions in the vascular cylinder are described as
There are two sets given below in which Set I offers types of learner's characteristics and Set II gives their description. Match the two sets:   Set I (Learner’s   Characteristics)    Set II (Description) a. Academic Characteristics i. Learner encodes and decodes relevant messages correctly b. Social Characteristics ii. Learner selects different themes in his/her course when needed c. Emotional Characteristics iii. Learner works as a team member of the peers d. Cognitive Characteristics iv. Learner starts respecting the individual differences evident in likes and dislikes of members of his class Choose the correct answer from the following options:
Which of the following is not true regarding the blood vascular system of cockroach ?
Given below are animals having Blood Vascular System. Select the animals which have CLOSED Blood Vascular System. A. Hippocampus B. Pheretima C. Pila D. Periplaneta
Which of the following statements is/are correct regarding Cockroaches? 1. A cockroach belongs to the class Insecta of phylum Arthropoda. 2. The cockroach has a 13-chambered tubular heart. 3. They do not have an abdomen and thorax.
Part of the vascular strand of the leaf which is present in the stern as a lower portion of the vascular supply to the leaf is called the
In the monocots the vascular cylinder consists of widely scattered network of vascular bundles. Such a stele is called
In Phlox, the vascular cylinder is continuous and consists of a single layered pericycle, a complete ring of phloem, a complete ring of cambium and a complete cylinder of xylem with a pith in the centre. This arrangement of the vascular tissue is called
From an alloy, two specimens are machined and tested separately under tension and compression. The engineering stress-strain curves as well as the true stress-true strain curves for tension and compression are plotted in the same diagram. Identify the correct statements:
P. The engineering stress-strain curves in tension and compression are identical.
Q. The true stress-true strain curve in compression is lower than the true stresstrue strain curve in tension due to Bauschinger effect.
R. The true stress-true strain curve in tension is above the corresponding engineering stress-strain, curve.
S. The true stress-true strain curve in tension and compression are identical.
Which of the following statements are correct? 1. A continuous-time system is said to be time-invariant if the parameters of the system do not change with time. 2. The characteristics of a time-invariant system are fixed over time. 3. If the input to the time-invariant system is delayed by t0 seconds, the characteristics of the output response are also delayed by t0 seconds.