Answer:
yes, over time pieces of an animals life cycle can change and adapt to help them survive in different environments that doesn't happen overnight. In a frogs life cycle they develop into a frog from an egg. frogs have adapted to become what they are today and if I where to make a prediction it would be that frogs at one point lived solely in water based on the way they grow and develop in there life cycle. having a life cycle means there's room for improvement and tiny adjustments can be Made as a defense mechanism that develops over the course of many froggy life cycles.
Answer:
The Endangered Species Act was formulated in 1973. This Act was made in order to protect the threatened and endangered species of both plants and animals and also to protect the habitats in which these species live.
One of the major success was that there were many species which actually recovered from this act. For example, the population of the Kirtland's warbler increased from 210 to 1415 from 1973 to 2005.
One of the major controversies which arose from this act was that the critics claimed that this act failed to show major recovery of animals. Out of the total 2000 endangered species listed, only 28 species were properly recovered.
In 1885 Virchow said that all cells exist from pre-existing cells
Answer:
eukaryotic cells have true nucleus that's why it's more complex.Prokaryotic cells have false nucleus
Explanation:
The unicellular and multicellular organism are different in asexual and sexual mode of reproduction.
The reproduction is the phenomenon which involves the production of an offspring by particular individuals or individuals to propagate there species. Reproduction are of two types:
1. Asexual reproduction: In asexual reproduction, they does not involve the fusion of gametes. The unicellular organism reproduce mainly by binary fission. In this, a single cell divides into two daughter cell. The daughter cell completely resembles their parent. It involves only one parent.
2. Sexual reproduction: In sexual reproduction, there is a fusion of gametes that brings changes in genetic combination. The germ cell undergoes meiosis that produces haploid gametes that fuse to form new individuals. It involves either one or two parents.
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