Azotobacter A. forms endospores. B. forms cysts. C. fixes carbon dioxide. D. are used as an indicator of fecal pollution.

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Answer 1

Answer: Answer: Azotobacter forms cysts. The answer is, “B.”

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Aristotle's ladder of nature, and the Great Chain of Being, were concepts suggesting __________. a) life evolved on other worlds and was later transported to Earth down a celestial ladder b) the accurate evolutionary view that all species are related, with each providing an evolutionary link (i.e. step in the ladder) to its immediate ancestor c) the mystical teleological view that all species were created in a fixed order, from least to most perfect d) life is a painful and purposeless experience of endless steps, but death brings release from the ladder of life
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Why would a grassland ecosystem have more primary consumers than a forest ecosystem

Answers

Answer:

Grass is easier for herbivores to digest.

The energy in trees is less available to herbivores

Explanation:

Answer:

grass is easier for herbivores to digest.

Explanation:

Common characteristics supporting the idea that the first land plants were related to green algae include __________.a. Presence of chlorophyll
b. Cell walls made of cellulose
c. Alternation of generations
d. All of the above
e. A and b only

Answers

Common characteristics supporting the idea that the first land plants were related to green algae include All of the above. Thus, option "D" is correct.

Which algae is responsible for main supply of oxygen in the atmosphere?

The Green algae are responsible for the main supply of oxygen in the atmosphere. There are tiny organisms called cyanobacteria (or blue-green algae) which photosynthesise carbohydrates for their nutrition and growth using sunlight, water, and carbon dioxide.

The waste product of cyanobacteria is the oxygen of the atmosphere.

Thus, option "D" is correct.

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Common characteristics supporting the idea that the first land plants were related to green algae include all of the choices.

Chinstrap and Gentoo penguins are two species of penguins that both feed on krill in the Antarctic Ocean. (These are different penguin populations from those shown in figure 38.4.) Drag the correct word or phrase from the left to complete the following sentences. Not all choices will be used. These two populations occupy the same area and have the same food source. They compete because they have the same niche. Over many generations, Gentoo penguins are driven to local extinction by the better adapted Chinstrap penguins. This is an example of _________. Over many generations. Gentoo penguins in another area adapt to feed on krill at greater depths than the Chinstrap penguins. This is an example of __________.

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This is an example of competitive exclusion. Over many generations, Gentoo penguins in another area adapt to feed on krill at greater depths than the Chinstrap penguins. This is an example of adaptive radiation.

Competitive exclusion is a principle in ecology that states that two species that occupy the same niche cannot coexist indefinitely. If one species is better adapted to the environment and has a competitive advantage over the other, it will outcompete the other species and drive it to extinction. This is what appears to have happened in the case of the Chinstrap and Gentoo penguins. These two species occupy the same area and have the same food source, which means that they are competing for the same resources. Over many generations, the Chinstrap penguins, which are better adapted to the environment, were able to outcompete the Gentoo penguins and drive them to local extinction. Adaptive radiation, on the other hand, is the evolution of a single species into multiple species that each occupy a different niche. In the case of the Gentoo penguins, it appears that they were able to adapt to feeding on krill at greater depths than the Chinstrap penguins. This allowed them to occupy a different niche and coexist with the Chinstrap penguins without competing for the same resources. Adaptive radiation can occur when a species colonizes a new area with a variety of available niches or when a species evolves to exploit a new resource. In both cases, the species is able to diversify and occupy a variety of niches, allowing it to coexist with other species that occupy different niches.

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The pyruvate dehydrogenase complex converts pyruvate to acetyl coenzyme A, abbreviated acetyl CoA, which can then enter metabolic pathways such as the citric acid cycle. Identify the citric acid cycle enzyme that is mechanistically and structurally similar to the pyruvate dehydrogenase complex. Which enzyme or enzyme complex is similar to the pyruvate dehydrogenase complex? isocitrate dehydrogenase fumarase glyceraldehyde 3‑phosphate dehydrogenase α‑ketoglutarate dehydrogenase

Answers

Answer:

α‑ketoglutarate dehydrogenase

Explanation:

This is an enzyme complex ,which is analogous to pyruvate dehydrogenase. . Its catalytic activity is inhibited by it products succinyl Co A,it is also refers to as oxoglutarate dehydrogenase complex.(OGDC).

This enzyme complex is similar to pyruvate dehydrogenase in having the same subunit structure, and using the same type of co-enzyme.

One example of a stored-value card is a(n) *A. Credit Card
B. Debit Card
C. Gift Card
D. Identification Card