'behave alike' is correct and can be used in written English.
You can use this phrase when you want to describe two or more people or things that are acting in a similar way. For example, "The two boys from the same family tend to behave alike even though they have separate personalities."
They look and behave alike.
Although isotopes of a given element behave alike chemically, they have differing stabilities in relation to radioactive decay, which is a property of the nucleus.
One is the highly egalitarian nature of hunter-gatherer societies, which makes everyone behave alike and gives individual altruists a better chance of passing on their genes.
People can behave alike for many reasons and the key to the design of our test, therefore, is the control of the other possible reasons for observing apparent peer effects.
Empirically, the paper analyses voting behavior in the 16th German Bundestag (2005 2009) and shows that the odds of district MPs to deviate are significantly higher despite frequent claims that the two types of MPs behave alike.
It noted that surface temperatures and temperatures aloft were subject to different influences and were often "decoupled" from one another; that is, the surface and the upper air do not necessarily behave alike.
As Mr. Bush and Mr. McCain find themselves in an unexpectedly competitive duel to distinguish themselves, the more their battle escalates and the more the two are looking and behaving alike on everything from their campaign trappings to the heart of their oratory.
In the wet season, culture systems behaved alike, whereas in the hot and dry seasons, integrated ponds showed relatively larger thermal stratification (Fig. 2).
In the former case, narrower margins in the statewide vote should translate into more Congressional district wins, since the districts will behave more alike one another.
However, the other softwares behave almost alike.
A complicated relationship between budget, taxes and corporate law laid the foundation for Democrats and Republicans to both behave evermore alike.
