BIOLOGY HIGH SCHOOL

Leaves curving towards sunlight are examples of _____. phototrophism
geotrophism
thigmotrophism
hydrotrophism

Answers

Answer 1
Answer:


The correct answer is phototrophism.

Phototrophism is said to be the growth of a plant toward a source of light.

It is response to the stimulus of  light and is seen when a plant bends towards the direction that light is coming from. Response by plants to a stimulus is called tropism. The  word or prefix "photo" means or refers to light. Therefore phototropism simply means response to light.

Phototropism can be especially evident in the jungle where the jungle floor gets very little light. If a tall tree falls to the ground, it leaves a gap in the canopy through which sunlight streams to the ground. Many jungle plants growing on the ground will bend towards the  gap  and rapidly grow towards the source of  light.
Answer 2
Answer:

Answer: PHOTOTROPISM

Explanation:

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Jordan exercises one to two times a week. She usually works out alone. Between meals, she sometimes snacks on potato chips from the bag. Which suggestion would least improve Jordan's overall fitness?

Describe dominant allele????????

Answers

"One whose trait is always shows up in the organism when the allele is present".
pg.77

Charles Darwin did poorly in school as a young boy. How did his poor performance belie his genius?

Answers

Charles Darwin always had a taste for natural history as a kid, as far back as eight, in spite of how he performed in school. When he was a young adult, he got an apprentice ship as a doctor from his father who was also a doctor. This gave him experience with the anatomy of the human body. When being a doctor started to bore him, he learned taxidermy, exposing him to the anatomy of wild animals. Later he joined the Plinian Society which was a student natural history group that often debated and questioned the current topics and views of the subject in that time. Not too mention the many natural historians and evolutionists who also inspired him, one of which was his own grandfather,that gave him the support he needed. I guess that even though his normal school curriculum did not interest him, his self determination was enough to keep him grounded to his interests, proving that sometimes a great education doesn't always make you a genius. (idk :) Charles Darwin was smart in his own ways.

A cruise ship makes its way from one island to another. the ship is in motion compared with which reference point?the passengers on the ship

the captain of the ship

a lighthouse on a nearby island

the cargo inside the hull of the ship

Answers

Answer : Option C) a lighthouse on a nearby island


Explanation : When a cruise ship makes its way from one island to another. The ship is in motion is always compared with the a light house on a near by island as it serves as a guiding hand and acts as a reference point for ships coming from different island.
   The ship is not in a motion compared with : the passengers on the ship , the captain of the ship and the cargo inside the hull of the ship ( they are moving together ).
    Answer:
    C ) a lighthouseon the nearby island.

Which of  the following are heterotrophic or autotrophic, how many cells does each one have, the presence or absence of cell organelles for example, nucleus, cell wall, chloroplast and vacuole and give two examples of organisms in each kingdom1. Monera
2. Protista
3. fungi
4. Plantae
5. Animalia

Answers

plantae-auto
protista-both
monera-both
fungi-heterotrophic
animalia-heterotrophic
MONERA ARE MULTICELLULAR ORGANISMS AND IT IS HETETROPHIC

A simple test to differentiate between Staphylococcus and Streptococcus is the addition of H2O2 to a colony to see if bubbles form, which are positive for catalase. Which organism would be positive

Answers

Answer:

The Correct answer is B, Staphylococcus.

Explanation:

The Catalase test is used to differentiate Staphylococci (Catalase positive) from Streptococci (Catalyst negative). The enzyme catalase is produced by bacteria that respire using oxygen and protects them from the toxic by-products of oxygen metabolism.

Catalase positive bacteria includes strict aerobes as well as facultative anaerobes. Catalase negative bacteria maybe anarobes or facultative anarobes that only ferment and don't respire using oxygen as terminal electron acceptor.

Catalase converts hydrogen peroxide to water and oxygen gas. Though both Staphylococcus and Streptococcus are gram positive bacteria, only Staphylococcus produces catalase enzymes.

Glaucoma is a leading cause of blindness. Studies have linked a common form of glaucoma to three genes and more than 20 genetic loci. Which best describes glaucoma?

Answers

Answer:

Glaucoma is polygenic trait.

Explanation:

As per given information, Glaucoma disorder is a phenotype regulate by three genes and more than 20 genetic loci. A genetic trait that is regulated by more than one gene is called polygenic trait.  

Here, Glaucoma is regulated by three genes. This makes it a polygenic trait. The phenotype depends on the total number of dominant alleles of all the three genes.  
Glaucoma is best describes as a mutation 
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