I need help with my biology hm

Biology

1 answer:

lidiya [134]2 years ago

4 0

Answer:

Okay let me break this down, so you have a pure red and pure white feathered chicken meaning that the chickens have homologous alleles. Overtime, as you breed the two you may get multicolored chickens but they can carry the recessive white feathers alleles (FWFW) meaning that they can still produce all white chickens and they can continuously do that over generations. Selective breeding may be negative because you may not get the desired result, you could breed for the wrong traits, other characteristics are lost and the resulting population is very similar. Less genetic variation can cause the chickens to not be resistant to problems like diseases and could fall ill.

Explanation:

You might be interested in

What do many ecologists feel is necessary for an area to be classified as a forest?

Arturiano [62]

Answer:

B. Enough trees to create a close canopy.

Explanation:

Forests may have several tree species but one very important feature of forests is their close canopy of dense trees, often arranged in several strata (or layers).

6 0

2 years ago

Which type of change was seen in the ecosystems that were affected by the 1988 fires in Yellowstone Park

charle [14.2K]

Answer:SECONDARY SUCCESSION Explanation:Secondary succession can happen after primary succession or independently of primary succession.An example of Secondary Succession by stages:

1. An area of growth.

2. A disturbance, such as a fire, starts.

3. The fire destroys the vegetation.

4. The fire leaves behind empty, but not destroyed soil.

5. Grasses and other herbaceous plants grow back first.

6. Small bushes and trees begin to colonize the public area.

7. Fast-growing evergreen trees and bamboo trees develop to their fullest, while shade-tolerant trees develop in the understory.

8. The short-lived and shade-intolerant evergreen trees die as the larger deciduous trees overtop them. The ecosystem is now back to a similar state to where it began.

(Hope this helps)