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emmasim [6.3K]
3 years ago
7

What is the estivation, how is it similar to hibernation

Biology
1 answer:
AnnZ [28]3 years ago
6 0
Estivation is prolonged torpor or democracy of an animal during a hot or dry period. Hibernation and estivation are similar in that they are adaptations to harsh.
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How would you account for the fact that fossils of fish are not present in the older layers of rock?
Mademuasel [1]

Answer:

The fish did not yet exist when the old layers of rocks were deposited. In fact, animals with hard parts did not evolve until about 600 million years ago, which is only about 13% of the 4.5 billion year age of the Earth. Multicellular animals without hard parts left tracks in older sediments, but had no fossilize-able body parts.

Explanation:

5 0
3 years ago
During an experiment a scientist observed prokaryotes that lived near volcanic vents deep in the ocean the scientist most likely
Natalija [7]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

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✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ The correct answer is B. Chemoautotrophs.

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4 0
3 years ago
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What is the difference between a alligator and a crocadile?
Angelina_Jolie [31]

Answer:

One will eat humans and the other won't and their snouts an Alligator's snout is long and narrow and a Crocodile's snout is short and wide

Explanation:

8 0
3 years ago
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The diagram shows some of the steps in the flow of energy through an ecosystem. The arrows represent the transfer of energy. Lab
Feliz [49]

The given diagram is food chain. Food chain is a sequence of populations or organisms of an ecosystem through which the food and its contained energy passes with each member becoming the food of a later membre of the sequence. The number of trophic levels in a food chain is 3-6 and in each trophic level a lot of biomass is consumed in liberating energy.

In the above food chain plants( producers) radiant light energy into chemical form. Rodents are primary consumer, owl is a secondary consumers or primary carnivores and wolf is a tertiary consumer or secondary carnivores.

7 0
3 years ago
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Choose the correct statements 1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same f
Mamont248 [21]

Answer: The correct statements are 1 and 2:

1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.

2.Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.

Explanation:

Pollination is the transfer of pollen grains from an anthers to a receptive stigma. In most species of flowering plants, external agents bring about pollination. Also, flowers have evolved special structures and mechanisms to ensure successful pollination.

There are two types of pollination

--> Self pollination: This takes place when mature pollen grains from the anther of a flower fall on the stigma of the same flower or that of another flower on the same plant. This type of pollination brings the male gametes and egg cells of the same plant together. The resultant offspring show very little genetic variation.

--> Cross pollination: This occurs when mature pollen grains of a flower are transferred to the stigma of a flower of another plant of the same or closely related species. This brings the male gametes and egg cells of two different parent plants together. Therefore, there is greater genetic variation among the offspring.

7 0
3 years ago
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