Fungi obtain nutrients by external digestion
a. true
b. false

True.

Explanation:

The fungi are eukaryotes, single or multicellular, all heterotrophs. Although some species may have greenish coloration, the fungi do not have chlorophyll or any other photosynthetic pigment. Thus, they need organic matter to survive. They get the nutrients they need through direct absorption (when these molecules are available in their environment) or by secreting digestive enzymes around them to break down the macromolecules of their organic food; subsequently the resulting nutrients are absorbed. In summary, they usually perform extracellular digestion of food and then absorption of nutrients.

mammal

explanation:

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."