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Dmitrij [34]
3 years ago
9

What are the 2 structure are in plant cells

Biology
2 answers:
fredd [130]3 years ago
8 0
Vacuole and chloroplasts
dalvyx [7]3 years ago
7 0
 <span>Plant cells have a cell wall, a large central </span>vacuole<span>, and plastids such as </span>chloroplasts<span>. The cell wall is a rigid layer that is found outside the cell </span>membrane<span>and surrounds the cell, providing structural support and protection

besides that hear it is </span>vacuole and chloroplasts 
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Answer:

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3 years ago
With the help of labelled diagram explain the menstrual cycle in adolescent girls​
MissTica

Answer:

it is diagram okk

Explanation:

female reproductive system undergoes some changes and those changes repeat at interval of every 28-30 days. this repetative changes are called menstrual cycle. it is natural process, controlled by four hormones. those four hormones follicle stimulating hormone,luteinizing hormone, estrogen and progesterone. one of several follicle in ovary starts to develop along with oocyte present in it,under effect of follicle stimulating hormone. developing follicle secrets estrogen. endometrium of uterus starts to regenerate under effect of estrogen. it bursts under effect of luteinizing hormone and oocyte is released. this is ovulation. remaining tissues of burst follicle forms corpus luteum. corpus luteum starts to secrets progesterone. endometrial glands secrets their secretion under effect of progesterone. such endometrium is ready for implantation of embryo.

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