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February 2026

34,964 public questions were asked this month.

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Recent questions

Latest from February 2026

Which expression is equivalent to 5(g+2)-3? A. 5g-7 B.5g+10 C.5g-1 D. 5g+7
Asked by nunya 1 answer
Which identifies the main purpose of biological taxonomy? classify organisms by using common names for easy identification of species by scientists create phylogenetic trees that organize species based only on physical c...
Asked by jay 1 answer
Which scientific area has the most influence in shaping modern classification methods? physiology anatomy evolution
Asked by jay 1 answer
are the expressions 3+(4x+1) and 4-4x equivalent?
Asked by nunya 1 answer
What is binomial nomenclature? a two word system for naming organisms by using the genus and species a two word system for naming organisms by using the family and genus
Asked by jay 1 answer
What feline species is the largest mammal found in the Amazon? (1 point) Responses ocelot ocelot margay margay jaguar jaguar caracal caracal
Asked by :3 [SillyAnonymousCat] 1 answer
Charles Darwin hypothesized that some individuals would be better equipped for survival than others, and that those that were less equipped would not survive. Darwin formulated this hypothesis based on the work of which...
Asked by jay 1 answer
Apply the properties of operations to determine which expression is equivalent to a + b + c (d+2) A. a+b+cd+c B.2abcd C. a+b+cd+2 D. a+b+cd+2c
Asked by nunya 1 answer
Which type of selection leads to increased phenotypic and genetic variation? directional selection disruptive selection
Asked by jay 1 answer
A male cardinalโ€™s red color is an example of a trait affected by natural selection. The females of the species choose mates based on the vibrant colors of the malesโ€™ feathers. If females begin using different criteria th...
Asked by jay 1 answer
Henry was studying two populations of the same species of lizards. One population lived on an island and the other lived on the mainland. Both populations were affected by a hurricane that hit the island and the mainland...
Asked by jay 1 answer
Why are the Miller-Urey experiments essential to the theory of evolution? They showed that life can only come from life. They showed that electricity can create life. They showed how organic molecules could be made from...
Asked by jay 1 answer
A classmate argues that fossil fuels are the best energy resource in terms of efficiency so the government should not bother developing alternative energy. How can the data in Figure 2 be used to evaluate your classmate'...
Asked by Dra 1 answer
Thylacosmilus is a marsupial, and Smilodon is a mammal. Thylacosmilus and Smilodon both have saber teeth, but they do not share an ancestor that had saber teeth. What are saber teeth for these organisms? analogous struct...
Asked by jay 1 answer
The formula vw=fโ‹…ฮป ๐‘ฃ ๐‘ค = ๐‘“ โ‹… ๐œ† describes the relationship between the speed of a wave (vw ๐‘ฃ ๐‘ค ), and its frequency (f ๐‘“ ) and wavelength (ฮป ๐œ† ). For example, if a wave has a frequency of 120 Hz and a wavelength of 5m, it...
Asked by Name 1 answer
Which of the following best describes the Amazon Rain Forest? (1 point) Responses It is home to Pampas, a rich and fertile alluvial plain. It is home to Pampas, a rich and fertile alluvial plain. It contains more species...
Asked by :3 [SillyAnonymousCat] 1 answer
From his observations of the animal species on the Galapagos Islands, Darwin concluded that plants and animals ___________. (1 point) Responses cannot change cannot change adapt to their environment over time adapt to th...
Asked by :3 [SillyAnonymousCat] 1 answer
AM waves have a wavelength of approximately 100 meters. FM waves have a wavelength of approximately 1 meter. Which one has a higher frequency? Which one has higher energy?(1 point) Responses FM has a higher frequency and...
Asked by Name 1 answer
Use the properties of operations to write an expression equivalent to 2(k+4)+5. The answer should be in simplest form. What is the constant value (no variables) in the equivalent expression?
Asked by nunya 1 answer
Consider the generalized cladogram of fish. A cladogram is shown. Part A has bones and jaws. Osteichthyes is a group of fish that have the derived characteristics of jaws and true bones. Which letter corresponds to where...
Asked by jay 1 answer
These notes were taken during a class about biological evolution, but the subject title is missing. -results from immigration -new genes brought into a population -variation in a population increases What do the notes de...
Asked by jay 1 answer
During a baseball game, the sound of the bat hitting the ball can be heard in most parts of the stadium. That sound is weaker at greater distances. What is the cause of this phenomenon?(1 point) Responses The sound waves...
Asked by Name 1 answer
The fossil record shows that the average size of black bears was large during cold glacial periods and got smaller during warmer time periods. What is this an example of? directional selection disruptive selection ecosys...
Asked by jay 1 answer
Generate an expression equivalent to: 5 + 6b + 12c + 10b - 4c - 2. In the simplest form of the equivalent expression, what is the coefficient of variable b
Asked by nunya 1 answer
Which environment will you find a pirarucu? (1 point) Responses tree canopy tree canopy river river forest floor forest floor wetland wetland
Asked by :3 [SillyAnonymousCat] 1 answer