Answer:
Stabilizing Variation.
Explanation:
This is the type of variation that occurs when genetic diversity decreases as the population of organism in a particular population based on a specific trait.
Organisms with varied or specific traits within the population are selected against by the selection pressure, with little chances of reproduction, while organisms in between, ( with least variation of this particular traits) which are within the narrow range, survive to reproduce.Thus, this gives rise to narrow population of these particular organisms,(stabilizing variation) which are therefore naturally selected.
Therefore, the variation of the organisms in this population is kept close to the centre of the same mean value.
Long line fishing, drift nets, and trawling all produce an insignificant amount of by-catch is a false statement.
Explanation:
Bycatch fishing is "the incidental capture of non-target species” like sharks, dolphins, seabirds, marine turtles and other marine organisms while applying modern fishing gears like long line fishing, drift nets, or trawling.
Although, these inconspicuous modern fishing gears are highly efficient in catching the desired types of target fishes; these also catch significant amount of other marine species which travel along the line as a bycatch.
A huge number of exclusive marine fishes which are mostly under the endangered list and many juvenile fishes are caught as bycatch which are mostly thrown back dead overboard. Further these modern gears also endanger the marine structures like the coral reefs.
Answer:
No
Explanation:
Not all greenhouses have pest insects because there can be butterflies in a greenhouse to pollinate the plants and bees help pollinate too. There are some pest insects though such as the greenhouse white fly, Encarsia Formosa, and the mealybug
<span>Echinodermata are more related to Chordata than to Mollusca because Echinodermata and Chordata are both A. Deuterostomes. Deuterostomes are</span><span> animals grouped together based on the way their embryos form in the earliest stages of development. </span>
Answer:observation is what you have gathered, after you look over it you my hypothesis of what you gathered. hypothesis is an explaination of the observation.
Explanation:
