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Eduardwww [97]
3 years ago
13

How did ichthyosaurus survive?

Biology
1 answer:
azamat3 years ago
5 0
Ichthyosaurs likely evolved from land reptiles that dove into the ocean about 248 million years ago, researchers said.
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In which group is parthenogenesis a normal event?
bezimeni [28]

Answer:

Bees

Explanation:

Parthenogenesis is a method of asexual reproduction in which an egg cell develops into a new individual without fertilization. Parthenogenesis occurs in insects, amphibians, reptiles, fish, and in some plants. Most of the organisms which reproduces through parthenogenesis, they also reproduce sexually. Parthenogenesis may be occurs by apomixis and by automixis. In apomixis, egg is produced by mitosis and results into diploid clones. In automixis egg is produced by meiosis and the haploid egg develops into diploid new individual by the duplication of chromosomes. Parthenogenesis is an adaptation which allows to reproduce in adverse environmental conditions when sexual reproduction is not possible.  

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3 years ago
Adjacent plant cells have narrow channels called plasmodesmata that pass through the cell walls of the connected cells and allow
tatuchka [14]

Answer:1. They allow the movement of molecules from one cell to another, enabling communication between cells.

Explanation:the cell wall is a rigid and cellulose containing wall, which surrounds the plasma membrane.

During lignification, small pores appear on the cell wall through which cytoplasmic strands extend.these pores are the plasmodesmata,which provides connections between plant cells

5 0
2 years ago
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Use the scenario to answer the questions.
Gala2k [10]

Answer:

The energy flows from the rhinoceros to the tick, and then from the tick to the oxpecker.

Explanation:

The ticks suck the blood from the rhinos, and the oxpecker eat the ticks.

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All of the chemical reactions within an organism is known as
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What purpose does pollen serve in fertilization
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Basically it helps with reproduction in flowers by carrying a male gamete from one flower to another and then fertilizing in cross-pollination with the pistil of another flower.

hope this helps :)
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3 years ago
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