The presence of vascular tissue allowed plants to . Group of answer choices transport nutrients and water from below-ground tissues to above-ground tissues and grow taller absorb nutrients from the soil and form a symbiosis with fungi transport nutrients and water from below-ground tissues and use them to protect developing embryos release toxins into the soil that reduced competition with other plants by poisoning nearby plants

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explanation:

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the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.