All fish all birds and all mammals are

In a community, before biomass is widely used as an energy source, several experts, including an ecologist, are hired to provide specific information. The ecologist would most likely be asked about

What do scientists call a non-native species that reproduces quickly and spreads in an environment when these organisms can cause harm to an ecosystem? A.) A competitive species B.) A displacing species C.) A persistent species D.

what is the probability that the offspring of a homozygous dominant individual and a heterozygous individual will exhibit the dominant phenotype? Explain & draw a punnett square.

Early archaic homo sapiens have been found on all continents except - and both of

Quaking aspen trees can send out underground stems for asexual reproduction. Sexual reproduction is not as common, but when it does happen, the haploid gametes have 19 chromosomes. How many chromosomes are in the cells of the underground stems

A river has a large amount of algae growing. Which most likely caused the growth?

Which of the following statements is true? Natural energy sources are nonrenewable and being depleted. Current fuels are not polluting the air. Mercury released into aquatic ecosystems comes from rock erosion.

Which causes a decrease in the amount of dissolved oxygen in a lake? A. lower temperatures B. fertilizer runoff C. overfishing

If you were to breed a black male guinea pig to a brown female guinea pig in an attempt to determine which one was homozygous dominant and which one was homozygous recessive, how could you be certain that the guinea pigs are truly homozygous?

How many chemical bonds can each carbon atom form?