Answer:
No, if water is not evaporated, it doesn't affect fishes. Fishes need water for its survival and growth. If water is evaporated from fish tank, the quantity of water is reduced in the tank and fish life is in danger if all water is evaporated. If water is not evaporated from fish tank, it is good for fish growth and development.
Answer:
Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive
Explanation:
The question is incomplete as it does not have the options which are:
A. The threefold change happened in one concentrated burst.
B. The change was not consistent in direction, but happened in multiple bursts concentrated at each speciation event.
C. There was consistent directional selection toward a larger brain all along the lineage between the two species.
D. None of the above.
Answer:
Option-B
Explanation:
The hominids evolved with time and the known hominid in modern time is the Homo sapiens or modern human.
The Homo sapiens like other species could have evolved from the older species through speciation and studies suggest that one of the major factors of human evolution is the size of the brain.
Two possibilities could explain the size of the brain that it could have evolved slowly with time called the gradual equilibrium or in bursts concentrated at each speciation event.
Since the punctuated equilibrium takes place in bursts until the species reach stasis is the most applicable condition for punctuated equilibrium to happen therefore Option-B is the correct answer.
<h2>Answer:</h2>
The option D is correct.
<u>B cells are memory producing cells.</u>
<h3>Explanation:</h3>
As B cells are the specific receptor cell, after immunity to certain infection of the foreign particle, there is a function of acquired immunity is the protection of the body from that particular infection for the whole life which is done by <u>memory cells of B lymphatics.</u>
