Answer:
true
Explanation:
Mitosis is closely controlled by the genes inside every cell. Sometimes this control can go wrong. If that happens in just a single cell, it can replicate itself to make new cells that are also out of control. These are cancer cells.
The answer is A: sac that stores water, nutrients, and waste products :)
Answer:
From the sea to reproduce in freshwater.
Explanation:
From fisheries, we can know about many types of fishes. Anadromous is one type of fish which migrate during their life cycle.
Anadromous fish are born in freshwater in the first stage of their lives. Then they migrate to the ocean as juveniles. This migration occurs so that they grow into adults into the sea. After becoming adults, they again migrate beck into the freshwater. They reproduce into the freshwater after migrating back into the freshwater from the sea.
So, we can say that there is two migration in the whole life cycle of anadromous fishes which is occurred so that they can reproduce.
Answer:
A
Explanation:It iz wat it iz
<h2>Mark and recapture method</h2>
Explanation:
Mark and recapture is a technique to measure the size of a population before fishing and hunting season;commonly used by fish and wildlife managers
- It involves the marking of number of individuals in a natural population,returning them to that population followed by recapturing some of those as a basis for estimating the size of the population at the time of marking and release
- Population size can be estimated as(N)=M*T/R
here,M=initially marked;T=total in sample second;R=marked recaptures
There are certain assumptions to this method
- Population is assumed to be closed which means no new individuals were born or immigrated into the population and none died or emigrated from the population
- The chance for each individual in the population to be caught are equal and constant for both the initial marking period and the recapture period
- One of the assumption of this method is that sufficient time must be given between the initial marking period and recapture period for all marked individuals but time period should not be very long
- Animals do not lose their mark
The tags in the given question were estimated a year there is a chance that old marked tags population might have died or emigrated(the longer the time interval the greater the chance) and hence it becomes an "open" population which violates the first law
If proportion of population changes then marked recapture method formula won't turn out be applicable
