relating to, involving, or requiring an absence of free oxygen.
or
relating to or denoting exercise that does not improve or is not intended to improve the efficiency of the body's cardiovascular system in absorbing and transporting oxygen.
Answer:
- There are many craters on the moon
- Spherical rocky body
- The moon has great basins
- Many great dark plains
H o H o Hope this helped!
Merry Christmas!
<h2>Question:</h2>
how is the same ploidy level maintained in sexually reproducing organisms generation after generation.
<h2>Answer:</h2>
<u>To</u><u> </u><u>f</u><u>ertilization, the fusion of haploid gametes from two individuals, restores the diploid condition. Thus, sexually-reproducing organisms alternate between haploid and diploid </u><u>stages.</u><u> </u><u>To</u><u> process of meiosis produces unique reproductive cells called gametes, which have half the number of chromosomes as the parent cell.</u>
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<u>#CARRYONLEARNING</u><u> </u></h2><h2>
<u>#STUDYWELL</u><u> </u></h2>
Answer:
The correct answer is "some stickleback populations come to live exclusively in fresh water they became trapped in lakes that formed at the end of the last ice age".
Explanation:
There are different types of speciation. Allopatric speciation consists of the geographic separation of a continuous genetic background so that it can give place to two or more new geographically isolated populations. Some barriers might impede the genetic interchange or genetic flux, making a place to two new populations that are separated and can not get together to mate anymore. Glaciation is one of the most important drivers of speciation and production of different phylogeographic structures by vicariance. Glacials originate isolated gene-pools that accumulate differences that end in reproductive isolation. Melting of the ice also generated divergence and speciation, as land appearance acted as a barrier for some populations.
During the last glaciation, stickleback fishes were able to reach certain new places or areas that provided better conditions to inhabit. There were fewer predators and more available food sources that made these new areas to be a better choice. These new grounds were lakes and were the product of ice melting. But at a certain point, as ice melting increased, the land started to show up again and became a barrier for this species. Animals that were living in lakes could not go back to the sea, they were trapped so they had to adapt to living exclusively in lakes. This species diverged and suffered speciation.
Answer: The same amount of bacteria is dependent variable
Two types of variables are used to do an experiment, independent variable and dependent variable. The variable which is used to test the effect on dependent variable is called an independent variable and the variable which is being tested and measured is called a dependent variable. In the given experiment, the same amount of bacteria is dependent variable, which is being tested and measured. The different temperature is independent variable.
