An observation is something you saw happen whereas an inference is something you think will happen. You can guess that the water will fall through a static filled comb, but you observed the water moved away from the comb instead. (I saw this happen and I thought it was so cool)
Answer:
Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.
The correct answer is option c. the sensory receptors in the vestibular sacs.
The kinesthetic system is involved in the movement and the balancing of the body. The mechanoreceptors present in the inner ear helps in determining the balance and the maintenance of the postures.
The vestibular sac have utricle and saccule, which help in the detection of the changes in linear acceleration. The semilunar canal present in inner ear respond to angular moments
Answer:
True.
Explanation:
The life of a plant alternates between haploid and diploid generations. From a fully matured diploid plant (2n) which is known as sporophytic generation a lot of spores which are haploid are produced by the process of meiosis. By the process of mitosis, these spores then develop into new multi-cellular plant which is also haploid just like spores (n), this phase of plant life cycle is known as gametophytic phase. This haploid plant is capable of producing gametes (n) which are also haploid. When two such gametes from the same or different plant fuse with each other a diploid cell is produced which is known as zygote (2n). This zygote subsequently divides and grows into a diploid plant which is a part of sporophytic generation. This is how the entire life cycle of various plants alternate between gametophytic and sporophytic phase.
This diploid plant then later again produces spores and the cycle of reproduction goes on in the same manner as described above.