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melomori [17]
3 years ago
12

Dichotomous keys are constructed based on

Biology
1 answer:
maksim [4K]3 years ago
7 0

Answer:

B is the right answer

combinations of characteristics in known organisms.

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Select all that apply.
stira [4]

Answer:

The correct answers would be maintain chromosome number through generations  and cause genetic variations by recombination.

In Meiosis a cell divides into four daughter cells all of which have half the number of chromosomes present in a parent cell.

It helps in the formation of gametes in sexually reproducing organisms.

These gametes (one from father and one from mother) fuse together to form a zygote. It re-established the chromosomal number as that of the parent.

In absence of meiosis, the chromosomal number would have doubled after each generation.

In addition, the meiosis also increases the genetic variation among the population with the help of crossing over which occurs during the pachytene stage of prophase I.

During this event, genetic information is exchanged between the non-sister chromatids of the homologous chromosomes. It produces a new combinations of genes that are different from either parent.

7 0
3 years ago
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Which statement represents a characteristic of an ecosystem that is not likely to sustain itself
yKpoI14uk [10]

plants cannot sustain themselves because they need dirt for fertilizer the sunlight to grow in water for hydration. they also need homeostasis for a heathy balance

6 0
3 years ago
Which kingdoms include organisms that are the autotrophic heterophic
Anni [7]
The Protist Kingdom<span> mostly has unicellular </span>organisms. Protists are <span>mostly unicellular, few multicellular, eukaryotic, can be </span>heterotrophic<span> or </span>autotrophic<span>.</span>
3 0
3 years ago
Which type of respiration takes place when there is no oxygen present
almond37 [142]

Anaerobic respiration.

8 0
3 years ago
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A means of communicating information or art is called artistic​
alexgriva [62]

Answer:

medium

Explanation:

3 0
3 years ago
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