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konstantin123 [22]
4 years ago
6

Which crops provide more than half of the calories consumed by humans?

Biology
1 answer:
raketka [301]4 years ago
7 0
Wheat, corn and rice more than half of the calories consumed by humans. It provides nearly 60% of total plant calories consume by humans. These three crops are grown worldwide. Although there are specific crops for specific region. One of the old cultivated crops is wheat. While corn is another version of wild cereal grass. Rice is the primary source of food.
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An amoeba is a unicellular organism, which doesn’t have a stomach for digestion of food. How does food storage and digestion tak
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Food storage and digestion take place inside a food vacuole in the cytoplasm of amoeba.<span> Once digested, it reaches each cell organelle.</span>
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4 years ago
Describe the relationship between biotic and abiotic factors in marine ecosystems
Blababa [14]

Answer:

Biotic factors include plants, animals, fungi, algae, and bacteria. Abiotic factors include sunlight, temperature, moisture, wind or water currents, soil type, and nutrient availability. Ocean ecosystems are impacted by abiotic factors in ways that may be different from terrestrial ecosystems.

i hope this helps :)

Explanation:

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4 years ago
Second-growth forests ________.a) are those forests in the National Parks that are protected from logging b) are forests that es
AnnyKZ [126]

Answer:

Second-growth forests are forests that establish themselves after virgin timber has been removed from an area

Answer b) is the ANSWER

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It's also known as secondary forest.

It occurs after a long time in a forest or woodland area where the disturbance factors have been removed over a long period of time. thereby, causing the regrowth of trees

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3 years ago
Suppose you have to bar magnets. Which statement is true?
zhannawk [14.2K]

Answer:

C

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4 0
3 years ago
Summarize the effects of progesterone and estrogen
SVETLANKA909090 [29]

<u>Definition:</u>

The sex hormone  and endogenous steroid present in human and other species ' menstrual cycle, pregnancy, and embryogenesis are known as "Progesterone" while the primary sex hormone in females  responsible for the development and control of the female reproductive system and for the characteristics of secondary sex is termed as "Estrogen" or "oestrogen".

<u>Progesterone Effects:</u>

  • Progesterone has a variety of physiological effects which are exacerbated when estrogens are present for an instance in breast tissue, where estrogens permits progesterone to mediate lobuloalveolar development.
  • Progesterone has main effects on human sperm by non-genomic signals, as they move through the female tract before fertilization.
  • Progesterone is called "hormone of pregnancy" as transform the endometrium to its secretory stage for uterine implantation, decrease the maternal immune response to permit for the acceptance of the pregnancy during implantation and gestation, prevent preterm labor, inhibits lactation during pregnancy etc.

<u>Estrogen Effects:</u>

  • Effects structure of human and categorize them as male and female, while females have three kind of estrogen: Estrone (weak and found in women after menopause), Estradiol (strong and it is steroid produced by ovaries ) and Estriol (weakest and waste product after body produces estradiol).
  • It effects ovaries, vagina, Fallopian tube, uterus, cervix and mammary glands.
  • It triggers the release of an egg due to high level during halfway of cycle but decreases after ovulation.

<u>Similarities between progesterone and estrogen: </u>

Progesterone and estrogen  as such do not have similar function but work with coordination as both are need for menstrual cycle functioning and regulation. Estrogens usually travel in fluids through the bloodstream, communicate with cells in the body's various tissues, and provide a message or guidance while progesterone helps to balance pregnancy period  and to implant an egg in uterus.

4 0
4 years ago
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