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Vlad [161]
3 years ago
6

In the coniferous forests of Oregon, eight species of woodpeckers coexist. Four species select their nesting sites based on tree

diameter, while the fifth species nests only in fir trees that have been dead for at least 10 years. The sixth species also nests in fir trees, but only in live or recently dead trees. The two remaining species nest in pine trees, but each selects trees of different sizes. This pattern is an example of
(a) resource partitioning.
(b) commensalism.
(c) predation.
(d) predator-mediated competition.
(e) a keystone species.
Biology
1 answer:
dem82 [27]3 years ago
6 0

Answer:

The correct answer is a. resource partitioning

Explanation:

Resource partitioning is a strategy that species employ to avoid competition. It is based on the selection of different nutrition sources by different organisms that coexist in the same ecological niche, so there is no conflict between them. In the present case, each one of the eight species of woodpeckers feed on different trees, it means that each one select a different tree´s species or, if they select the same species, they use trees of different diameters.

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Classify the mutations as somatic or inherited
Sergio [31]

Answer:

Somatic mutations : option (A) and option (D).

Inherited mutations : option (B) and option (C).

Explanation:

Mutations are permanent changes in the genetic material due to alterations in DNA sequence. Mutations may be somatic or inherited (or germline).

Somatic mutations are those mutations that arise in somatic or normal body cells and cannot transfer from parents to their offspring. As skins cells and lung cells are somatic cells, option (A) and (D) represent somatic mutations.

Inherited mutations are those mutations that arise in sex cells (gamete forming cell) and transfer from parents to their offspring due to transfer as these cells form mutated gametes. As egg cells and sperms cells are sex cells, option (B) and (C) represent inherited mutations.

8 0
3 years ago
When Mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. Which term describe
max2010maxim [7]

Hi!


The answer would be: Dominant


<h3>Explanation</h3>

A cross between a true breeding short plant (homozygous for short, suppose tt), and a cross between a true breeding tall plant (homozygous for tallness, suppose TT) would result in all the offspring being heterozygous for the traits, meaning they would each have an allele of shortness (t) and an allele of tallness (T).

Considering the offspring were all tall, we understand that the allele for tallness must have been dominant over the allele for shortness to present itself over it. Hence, the term describing the gene for tallness would be dominant, and the term describing the gene for shortness would be recessive.


Hope this helps!

5 0
3 years ago
Which will most likely cause an increase in the frequency of genetic mutations in humans?.
Alex Ar [27]
Increased exposure to X-rays
8 0
3 years ago
What is the overall net gain of ATP in cellular respiration per one molecule of glucose? between 0-10 between 10-20 between 30-4
Dmitry_Shevchenko [17]

Answer:

C 30-40

Explanation:

4 0
3 years ago
Name three social benefits provided by biodiversity.
damaskus [11]

There are many benefits provided by biodiversity. It can be in our biological resources, ecosystem services and also social benefits. The three social benefits provided by biodiversity would be the following:

1. Research, education and monitoring 

2. Recreation & tourism 

3. Cultural values 

Explanation:

Biodiversity is “the variability among existing animals from all causes including temporal, marine and other aquatic ecosystems, and the environmental complex.

Pollinators, including bees and butterflies, contribute meaningful environmental and economic advantages to agricultural and essential ecosystems, including adding heterogeneity and productivity to food crops. As many as one-third of the world's food production relies directly or indirectly on insect pollination.

7 0
3 years ago
Read 2 more answers
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