Answer:
Have larvae which are motile and move via the motion of cilia. (Ans. A)
Explanation:
Sponges: They are belongs to porifera phylum and defined as the simplest species. In sponge for particular function they are containing specialized cells, and they lack true tissues. All sponges are marine or aquatic in nature.
Sponge lives in contact with water because it helps them to excretion, gas exchange, and feeding. They can filter out the food, eliminate waste, and absorb dissolved oxygen with the help of body structure of sponge is dedicated to moving water.
Sponges produce motile larvae through the process of sexual reproduction, and move with the motion of cilia or budding formation through the process of asexual reproduction.
Answer:
They had a large brain size of 700 to 1,250 cubic centimeters and large brow ridges with a nuchal torus at the back of the skull.
Explanation:
<em>Homo erectus</em> was one of the species of the homo genus which were considered the first species to have the human-like the feature that is they can stand upright on two legs and were therefore referred to as the upright man.
They showed many evolutionary advances over their ancestors called Homo Australopithecus as they showed encephalization. Encephalization refers to the increase in the size of the brain due to more neuronal complexity and neurogenesis and they possessed about 750 to 1250 cc brain size.
They showed torus at the back of the muscle which can hold the muscle of the neck and also showed the large brow ridges in the front of the skull.
Thus, the selected option is the correct answer.
The G-protein couples receptors are among the most diverse group of the membrane protein receptors. The GPCRs attaches a wide variety of the signalling molecules. They interact with the G proteins which are present in the membrane. Conformational changes occur in the GPCR, when the external signalling molecules attaches to it. The GPCR is desensitized after it becomes activated.
Hence, the answer is 'Option D - desensitized'.
T<span>he finding is ptosis. Ptosis is an abnormal finding because it is usually observed with drooping of upper lids. The inward turning of the lower lid is called as entropion while the outward turning of the lower lid is termed ectropion. The constriction of the pupil is called miosis that is often caused by medications.</span>
