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maxonik [38]
3 years ago
15

Erwin and Scott used an insecticidal fog to knock down insects from the top section of a L. seemannii tree. The researchers iden

tified over 900 species of beetles among the individuals that fell. Erwin also projected that this entire tree from top to bottom is host to about 600 arthropod species that are unique to this tree species and not found on any other tree species. There are approximately 50,000 species of tropical trees. Although it could not be entirely accurate, what would be the best way to estimate the total number of arthropod species?
Biology
1 answer:
eimsori [14]3 years ago
7 0

Answer:

The options to complete the question are

A. Multiply 900 by 50,000.

B. Estimate the species density and then multiply by 50,000.

C. Divide 900 by 600 and then multiply by 50,000.

D. Multiply 600 by 50,000.

The CORRECT ANSWER IS D

D. Multiply 600 by 50,000.

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What is the chemical indicator for sugar and what is a positive result look like
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Benedict's solution is the indicator for sugar which is made up from copper sulfate and sodium hydroxide

the positive result is the observation of brick-red precipitate.

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In her laboratory journal, a microbiologist enters the following information: “Some mold growth was seen on the agar plate that
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I believe it would be an observation
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How many phosphate minerals most affected human activity
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Answer:

How much phosphorus does the human body have?

How much phosphorus do I need?

Life Stage Recommended Amount

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Adolescents 14 to 18 years old 1,250 mg

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Explanation:

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Summarize the effects of progesterone and estrogen
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<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.

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3 years ago
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