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valentina_108 [34]
3 years ago
9

Glucose metabolism is profoundly affected during pregnancy because: a. Pancreatic function in the islets of Langerhans is affect

ed by pregnancy. b. A pregnant woman uses glucose at a more rapid rate than a nonpregnant woman. c. A pregnant woman increases her dietary intake significantly. d. Placental hormones are antagonistic to insulin, resulting in insulin resistance.
Biology
1 answer:
Murrr4er [49]3 years ago
3 0

Answer:

d. Placental hormones are antagonistic to insulin, resulting in insulin resistance.

Explanation:

The placenta secretes many hormones out of which estrogen, progesterone, and human placental lactogen have an antagonistic effect on insulin. Insulin from the pancreas triggers the uptake of glucose by cells and lowers down the blood glucose level. Increased secretion of estrogen, progesterone, and human placental lactogen during late pregnancy by the placenta makes the cells non-responsive or reduces their sensitivity to the presence of insulin. This is called insulin resistance.

When cells do not respond to the presence of insulin by taking up the glucose, the blood glucose levels are increased. This effect increases the availability of glucose to the fetus as the circulating glucose is transported to the fetus.

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A marine ecologist counts the number of crabs in three different intertidal regions that are each two hectares. The crab counts
romanna [79]

Answer:

Density is nearly 3 cabs per hectare

Explanation:

Given -

There are three three intertidal regions.

Area of each intertidal region is 2 hectares.

Number of crab in the intertidal regions are as follows -

Intertidal region I - 7

Intertidal region I - 2

Intertidal region I - 6

Sum of crabs in all three regions is equal to

7 + 2+ 6\\= 15

Total area of all three intertidal regions is equal to

2 + 2+ 2\\= 6 hectares

Now density per hectare is equal to total population of crab divided by total area of all the three intertidal regions

Density = \frac{15}{6} \\= 2.5

Density is nearly 3 cabs per hectare

5 0
2 years ago
Which is an example of the beneficial application of plants in human society? Plants used for food can cause deforestation. Plan
ira [324]

The correct option is this: PLANTS CAN BE USED TO MAKE MATERIALS.

Plants are very important living organisms and they can be used in diverse ways. Some plants can be used as foods, some plants are used as raw materials for making pharmaceutical drugs and other herbal products. Plants, such as cotton are used to make clothing materials and dead and decaying plants serves as fertilizer that add nutrients to the soil.

9 0
2 years ago
Read 2 more answers
WILL GIVE BRAINLIST.Use the drop-down menus to answer the questions.
Studentka2010 [4]

Answer:

Point A - Intrusive igneous rock

Point B - Extrusive igneous rock

Explanation:

Intrusive igneous rocks are rocks which is formed by molten magma that cools and solidifies below and within the surface of the earth, thereby forming large crystals beneath the earth surface. Examples of Instrusive igneous rocks gabbro, granite, peridotite etc.

Intrusive Ignoeus rock is formed at point A in the diagram given above.

Extrusive Ignoeus rock, on the other hand, is the opposite of Intrusive igneous rock. Extrusive igneous rock is formed when molten rocks, called magma, erupts from beneath the earth and cools and solidifies on the surface of the earth, thereby forming small crystallized rocks. Examples of extrusive igneous rocks are basalt, pumice, etc.

Extrusive Ignoeus rocks would formed at point B in the diagram above.

6 0
3 years ago
What is the difference between loose and dense connective tissue
ASHA 777 [7]

Answer:

Difference Between Loose and Dense Connective Tissue

• Large proportion of ground substance and cells can be found in loose connective tissue,...

• Few loosely arraigned fibers can be found in loose connective tissue,...

• Loose connective tissue has more vessels than that of dense connective tissue.

• The loose connective tissue can be found beneath

Explanation:

please mark as brainleist

7 0
3 years ago
Which items are sources of soil pollution or soil pollutants?
Wewaii [24]
Which items are sources of soil pollution
Answer:plastics
3 0
2 years ago
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