BIOLOGY HIGH SCHOOL

The appearance of fireflies at dusk is an example of a circadian rhythm because it a. is related to the phase of the moon
b. is related to the temperature of the air
c. happens daily
d. happens seasonally

Answers

Answer 1
Answer: It is a circadian rhythm because it happens daily. That is what circadian means as a term.
Answer 2
Answer:

the right answer is C. happens daily

The circadian rhythm is studied by chronobiology. The circadian rhythm is the study of a 24-hour period during which a number of biological and physiological mechanisms are repeated. Circadian rhythms are modeled on an internal clock that regulates the rhythm of the waking / sleeping state, the rate of nail or hair growth, the rhythm of hormone production, blood pressure, the state of alertness, body temperature ... All living organisms have a circadian rhythm.

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What s the name for the compound with the formula NaF 1. sodine floride
2. sodium flouride
3. sodium florine
4. fluorine sodide

Answers

Answer:

2. sodium flouride is the correct answer.

Explanation:

The name for the compound with the formula NaF is sodium flouride.

sodium flouride is an excellent source of fluoride ion and it used fo many purposes.

  • Sodium fluoride is a colorless inorganic salt.
  • sodium fluoride is soluble in water.

uses of sodium fluoride

  • It is used to cure dental cavities.
  • It used in the metallurgy.
  • It is used as a cleaning agent and as an insecticide.
2 Sodium fluoride is the answer

Which of the following statements is false? A) A single gene can only influence a single trait.
B) The number of chromosomes is different in different organisms.
C) There are more genes in a cell than there are chromosomes.
D) The karyotypes for a male human and a female human look different.

Answers

Answer:

A) A single gene can only influence a single trait

Explanation:

One gene has the possibility of influencing many traits and in the same manner, multiple genes can affect a single trait.

Which location receives 12 hours of daylight and 12 hours of darkness on June 21?

Answers

Equator and Hawaii are most likely to see 12 hours of bothnight and day on June 21.

Which of the following is not a method used to improve management of tropical rainforests?a. increased loggingb. establishing special reserves for critical speciesc. utilize better agricultural techniquesd. the use of plantationsPlease select the best answer from the choices providedO B

Answers

Answer: Logging (A)

Explanation:

Logging occurs so that the land can be cleared so that the land can be used for other things Logging is harmful as it releases a lot of carbon dioxide into the environment. Logging also contributes approximately 12%-16% to greenhouse gas emissions and also it impacts the climate, causes soil erosion, flooding and desertification

The rest of the options that are given is to help conserve the rain forest.


The most logical answer is a

Which consist of sperm cells and egg cells?gametes tetrads diploids chromosomes A.gametes
B.tetrads
C.diploids
D.chromosomes

Answers

Answer;
The answer is A. Gametes

Explanation;
Both sperm cells and egg cells are gametes that are both products of meiosis type of cell division. Which means they are haploid,n, they have have number of chromosomes as the normal cells. Gametes are haploid , meaning that they ave just one complete set of chromosomes. Diploid cells are the body cells other than the gametes that have two copies of each chromosome.

Hi,


Which consist of sperm cells and egg cells?

A.gametes

Barometric pressure has been dropping all day. What weather conditions will most likely occur?

Answers

Answer: There will be stormy weather

Explanation:

Barometers is used to measure the pressure of atmosphere.

If there is sudden drop, then there will be stormy weather.

As it shows pressure is down suddenly due to which there will be storm.

If there is slowly drop in barometer, then there will be rainfall.

But if barometric pressure has dropping all day then there will stormy weather all day.

Hence , there will be stormy weather.
the answer is stormy weather
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