1. A producer and primary consumer are at the bottom of the food 2. Organisms use oxygen to bum sugar and release carbon dioxide through the process of
3. A food
shows all of the complex feeding relationships in an
ecosystem.
4. Explain Commensalism.
5. Most energy enters the ecosystem through the process of
6. Give an example of cooperation.
7. An energy
shows the energy at each feeding level of an ecosystem.
8. Grass is a
because it makes its own energy source.
9. A lion is a
because it hunts and eats prey.
10. Define interdependence.
11. The type of consumer that eats both plants and animals is an

the correct answer is b

i believe it is c: genes for body color and wing size are inherited separately from each parent.

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.