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Black_prince [1.1K]
2 years ago
13

The bald eagle almost went extinct when humans began using a pesticide called DDT. What can you conclude from the fact that bald

eagle numbers have since rebounded?
Biology
1 answer:
pashok25 [27]2 years ago
3 0

Answer:

. Humans re-shape their environment, putting pressure on other species.

Explanation:

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Which of the following best explains why deforestation increases the risk of floods in an area?a. Tree leaves catch and retain r
Illusion [34]

Answer: D) Tree roots improve soil water retention

There are many reasons which states that deforestation increases the risk of flood. First   , some water stay on the leaves and evaporates in to the atmosphere. Second, tree leaves reduce the impact of raindrops on the soil which causes less soil erosion.

Third, tree roots absorb water from the soil, which make the soil dry and it absorb more water rainwater. The roots of tree hold the soil in place and reduce the movement of sediment which reduce the capacity of river to break its banking. Thus, reducing the chances of flood.

7 0
3 years ago
Read 2 more answers
Parland’s alligator population has been declining in recent years, primarily because of hunting. Alligators prey heavily on a sp
IRISSAK [1]

Answer:

(C) The main predator of these fish is another species of fish on which alligators also prey.

Explanation:

The ecosystems are complex systems, and removing one species of them, always has a chain reaction and affects the population of the other species, be it in a positive or negative manner. In this case, the alligators prey upon fish, multiple different species. The alligators though have been removed from the ecosystem, thus the apex predator exists no more. This has opened up the top predator niche in the food chain in this particular ecosystem. The predatory fish species had no predators of its own, so its population increased, thus it needed more food, and that food was obtained by hunting the other fish species, resulting in a decline in the population of the other species of fish. Only when the carrying capacity is reached in the ecosystem for the predatory fish, the population of the other fish will stop declining.

8 0
2 years ago
During DNA Replication, a DNA strand that has the bases 3'ATACGC5' produces a strand with the bases
Gemiola [76]

During DNA Replication, the DNA strand that has the bases 3'ATACGC5' produces a strand with the bases 5'TATGCG3'  

Answer: Option B

<u>Explanation:</u>

The DNA Replication produces the newly formed two complimentary base pair strand from the two template base pair strand, so basically the already existing DNA strand is replicated, in order to produce complimentary DNA strand, with the template giving one strand to new each.

Thereby, here the given base was 3' ATACGC 5' so the first thing to produce the strand will be that the coding end will be reversed so the 3' end will have 5' end and 5' end will have 3' end. Then A bonds with T and T bonds with A and, so C bonds with G and G bonds with C, therefore, ATACGC will produce TATGCG. Thereby, answer would be 5'TATGCG3'.

3 0
3 years ago
Which of the following is an example of polygenic inheritance? a. White and purple flower color in peas b. The ABO blood groups
Delicious77 [7]

Answer: Hi.... I hope it helps!!

Skin Pigmentation in humans

Explanation: Polygenic inheritance- It is simply a single characteristic which is controlled by more than two genes. Human skin's color is determined by the amount of dark pigment it has which is melanin . Minimum four genes are involved in the melanin production.

It is a case of continuous variation as the combination of melanin producing allele are responsible for degree of pigmentation

3 0
2 years ago
Photosynthesis can be modeled by its overall chemical reaction. Which two compounds are the inputs or reactants of this reaction
professor190 [17]
Reactants of photosynthesis include light energy, H2O, and CO2. So I would imagine it’s H2O and CO2
8 0
3 years ago
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