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pentagon [3]
3 years ago
7

Which of the following is the best example of a keystone species?

Biology
2 answers:
IRINA_888 [86]3 years ago
8 0

Answer:

a

Explanation:

umka2103 [35]3 years ago
6 0
I think a would be the answer
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The environmental benefits of composting include all of following EXCEPT____________.
andriy [413]

Answer:

B. generation of rich organic fertilizer.

Explanation:

Compost and fertilizers are different. There is a simple way to distinguish between compost and fertilizers.  Compost feeds the soil, and fertilizer feeds the plants. Fertilizer adds to the soil for nutrient supplying purpose to the plants. But compost helps to increase the microbial activities of the soil, which improves the health of the soil.

6 0
3 years ago
Mushrooms with gills, typically available in supermarkets, have meiotically produced spores located in or on _________ and belon
GarryVolchara [31]

Answer:

Mushrooms with gills, typically available in supermarkets, have meiotically produced spores located in or on BASIDIA and belong to the phylum BASIDIOMYCOTA.

Explanation:

Mushrooms are fruiting bodies of certain fungi that belongs yo the phylum BASIDIOMYCOTA. They are incapable of producing their own foods( because of lack of chlorophyl) therefore are saprophytic in nature. It derives its nutrients for growth from metabolizing non living organic matter.The structure that you normally see above the ground is the part of the mushroom that is producing and dispersing spores which is located at the BASIDIA.

Mushroom are used for different purposes:

- the edible species are useful in cooking since it provides vitamin D to the diet.

- it's extracts can be used for medical purposes.

8 0
3 years ago
Name two types of evidence used to support the theory of evolution. explain how scientist use each type of evidence to provide s
joja [24]

Answer:

There are many types of evidence which support the theory of evolution such as comparative anatomy, fossil records, phylogenetic relationship, embryology et cetera

Comparative anatomy includes homologous organs and analogous organs. They support divergent and convergent evolution respectively.  

For example, the homologous structure of limb of humans, birds, bat, horse, whale et cetera show that they are made up of the same set of bones which are humerus, radius, ulna, carpals, metacarpals, and phalanges.  

It shows divergent evolution and supports that these organisms have evolved from a common ancestor.

Embryological evidence: When early stages of embryological development of different organisms are compared, it is found that these stages are similar at different levels of development.

For example:

  • The appearance of pharyngeal-arch (gill-like structures) in vertebrates during embryo development.
  • Salamanders and terrestrial frogs pass through larval stages within an egg. They possess the features similar to aquatic larvae, however, when they hatched out the eggs being ready for life on land.
3 0
3 years ago
Read 2 more answers
What type of macromolecule stores genetic information
hammer [34]

Nucleic acids (DNA and RNA) are the only known molecules that are able to store genetic information and transmit genetic information (copy it and pass it on). They are found in all living things on Earth.

-Agarvated

5 0
3 years ago
A slow moving stream has many plants growing changes to the climate make the water in the stream move faster. What is the most l
Wewaii [24]

Answer: B. The stream will have fewer plants growing

Explanation:

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3 years ago
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