BIOLOGY HIGH SCHOOL

A main function of the leaf petiole is a. to extend the leaf blade away from the stem so the blade can collect sufficient sunlight. b. to keep the leaf away from the secondary meristem of the stem. c. to produce pollen. d. none of the above

Answers

Answer 1
Answer: The answer is (a.) to extend the leaf blade away from the stem so the blade can collect sufficient sunlight.

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Natural selection is best described as _______.a. disruptive selection b. stabilizing selection c. a mechanism of evolution d. directional selection Regular distribution is observed for many organisms due to _______. a. the need to maximize exposure to sunlight b. the need to avoid predators c. interactions between individuals d. the plentiful availability of water
If a corn plant has a genotype of Ttyy, what are the possible genetic combinations that could be present in a single grain of pollen from this plant
A company has many genetically engineered poplar trees around its factories. Which best describes the poplar trees?A.They are being used for phytoremediation. B.They have transferred their genes to a nontarget species. C.They have reduced the effectiveness of pesticides. D.They are being used for disease resistance.
What scientist looked at cork through a compound microscope?
The initial increase in heart and breathing rates during the skin diving trip was probably a result of: a. activation of the sympathetic autonomic nervous system by the new experience. b. activation of the parasympathetic autonomic nervous system by the new experience. c. hypoxia caused by the inability of her blood hemoglobin concentration to supply sufficient oxygen for the strenuous exercise of swimming at sea level. d. elevated core body temperature caused by swimming in warm tropical waters.

The following tests can be used for the diagnosis of premature rupture of membranes, except: a) Nitrazine test b) Ferning test c) Schiller's test d) Nile blue sulfate e) Evans blue test

Answers

Answer:

yes

Explanation:

Final answer:

The Nitrazine, Ferning, Nile blue sulfate and Evans blue tests can all be used for the diagnosis of premature rupture of membranes. Schiller's test is the outlier, as it is used primarily for identifying cervical dysplasia which is a precancerous condition.

Explanation:

The diagnosis of premature rupture of membranes, a condition in pregnancy where the amniotic sac breaks prior to labor, can be done using several tests. These include the Nitrazine test, where the pH of vaginal discharge is noted with a color change indicating rupture, the Ferning test seeing a pattern resembling fern leaves on a microscope slide due to the presence of amniotic fluid, and the Nile blue sulfate and Evans blue tests which involve instilling a dye and observing if it appears in vaginal secretions. Schiller's test, however, is unrelated to this diagnosis. It is used primarily to identify cervical dysplasia or precancerous changes in cervix by using iodine stain.


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A botanist wants to observe the change in rate of growth of plants compared to the change in amount of rainfall on randomly selected days. Which one of the following tools would be the best choice for representing this data?

Answers

The botanist will use "Auxanometer" for that !!!

Hope this helps!

Answer:

Line and scatter plot is the answer

Explanation:

Do plants break down glucose to obtain energy?No, they make glucose, but they don't break it down.
No, they absorb the sun's energy directly.
Yes, they make glucose and break it down to produce ATP.
No, they absorb energy from the soil.

Answers

2nd choice is the correct one

Answer:

thanks it's B) No, they absorb the sun's energy directly.

Explanation:

thanks for your help

I will get some brainlist.

By which processes are rocks broken up and moved to different locations

Answers

Rocks are broken up and moved to different locations through the processes called Weathering and Erosion.

What are the different forms in which rocks changed to?

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Igneous rock to Metamorphic rock to igneous rock, Sedimentary rock to metamorphic rock as in changing a rock through the listed processes heat is highly required.

Transformation from a rock to igneous rocks requires the most heat because the rock body must be molten. In moving from metamorphic to igneous rock, the melting temperature of a rock must be attained in order for magma to form and sedimentary changes to metamorphic rocks also require heat.

Igneous rock to metamorphic rock is a metamorphic change that requires significant heat and pressure. The mineralogical fabric is affected by this change.

Therefore, Rocks are broken up and moved to different locations through the processes called Weathering and Erosion.

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Rocks are broken up and moved to different locations through the processes called Weathering and Erosion.

~ By Theophilus.

A negative effect of lawn fertilizer and pesticides is

Answers

Pollution of water and soil. The poison in fertilizer and pesticides will seep into groundwater supplies and contaminate the water.

Answer:

Water pollution

Explanation:

Pre-industrial Revolution Bark (Light-colored)

Answers

Answer:

yes pre industrialization the the bark colour was light so the light coloured moths could easily camufladge in it but later  on due to industrilization the bark bark turned dark which causes danger for the light colour moths\

Explanation:
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