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IrinaK [193]
3 years ago
7

In the life cycle of an organism, meiosis is paired with the process of fertilization. understanding the life cycle of an organi

sm is the key to understanding how sexual reproduction ensures the inheritance of traits from both parents and also introduces genetic variation. complete the diagram to show the life cycle of a typical animal.
Biology
1 answer:
e-lub [12.9K]3 years ago
6 0
Meiosis creates gametes (eggs and sperm) with only a single chromosome set (haploid or n) from parental cells with two chromosome sets (diploid or 2n). During fertilization, the haploid sperm (n) and egg (n) fuse, producing a diploid zygote (2n). The cells of the zygote then divide by mitosis (which does not change the ploidy level) to produce an adult organism (still 2n) of the next generation. 
<span>In sexual life cycles, meiosis and fertilization keep the number of chromosomes constant from generation to generation. </span>
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Which characteristic is distinctive of hominids?
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3 0
3 years ago
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8 0
3 years ago
An ecologist wants to know if diversity in a forest system is likely to decrease when an invasive species is introduced. This in
Alona [7]

Answer:

A model in which oak has a positive transition rate to the invasive and the invasive has a positive transition to oak.

Explanation:

An invasive species is the one which is non-native to the given ecosystem. Its growth hampers balanced ecological parameters and disturbs food web as well as normal flora.The overall effect of invasive species is decreasing biodiversity in selected ecosystem. As the ecologist needs to understand effect of this invasive species, firstly it is important to understand the transition of oak tress to invasive form. The transition rate is one of the deciding factor to introduce diversity in ecosystem. Also if the invasive form has the ability to revert back to original oak tress it would restore the original ecosystem. Thus a model in which oak has a positive transition rate to invasive and the invasive has a position transition to oak can be selected for the analysis. In other models, the final trnasition to grass would introduce lot of biodiversity in selected ecosystem which would be of little importance to understand transition rate.

7 0
3 years ago
(image is in picture)
NikAS [45]

Answer:

My guess would be C

Explanation:

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If you find a better answer, then use it, because I'm not completely sure, but that's my best guess based on the possible answers

6 0
2 years ago
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