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Alenkasestr [34]
2 years ago
13

Questions 1 and 2:

Biology
1 answer:
olasank [31]2 years ago
8 0

Answer:

a) Scales of pine closes and opens up with the variation in moisture content of air.

b) Cold sunglass meets warm moisture laden air and hence water droplet are suspended on the surface of sunglass.

Explanation:

a) Being a natural hygrometer, pine cone through its physiological activities indicate the presence of humidity in air.

The ridges of the pine consists of scales and the seed is inside it. In a humid environment, the scales absorbs moisture and swell and close the cone. This also prevents the seed from rotting due to excess moisture. With the reduction in moisture content of air, moisture in the  scales of pine cone evaporates and the cone open up.

b) Sunglass gets cold since it is inside the airconditioned temperature of car. When the sunglass is placed outside the car window, moisture laden hot wind strikes the cold sunglass and it suspends its moisture there on the surface of glass as water droplets.

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A situation in which the coefficient of coincidence is greater than 1.0 would indicate that: A. no double crossovers were found
damaskus [11]

Answer:

B. there were more double crossovers in the progeny than would be expected based on probability

Explanation:

Crossing over or recombination can be defined as the exchange of genetic material between homologous chromosomes during meiosis. Moreover, the coefficient of coincidence is the number of double recombinants found in the progeny. The coefficient of coincidence can be estimated by the following equation:  

Coefficient of coincidence  (COC) = ADRF / EDRF

where ADRF = Actual Double Recombinant Frequency

and  EDRF = Expected Double Recombinant Frequency

In the case above described, ADFR is higher than EDRF, and therefore COC will be higher than 1.

3 0
2 years ago
Males are more likely to suffer from sex-linked recessive diseases or disorders because —
Colt1911 [192]

Answer:

b

Explanation:

other answers are incorrect because none of then except b makes sense

4 0
2 years ago
Why are the plates used in the skin microbiology experiment incubated at 37 °C?
nadya68 [22]

Answer:

The correct answer is option A.  

Explanation:

The plates used in the skin microbiology experiment incubated at 37-degree celsius due to the microbes grow best at human body temperature which is 37-degree celsius. these bacteria are mesophiles.

The skin microbiology experiments requires conditions as the human skin to perform and study the living and healthy bacteria and some cases fungi.

Thus, the correct answer is option A.

8 0
3 years ago
What are the three general types of questions that perception helps us answer regarding our environment?
Lisa [10]

Explanation:

Because we always seek to make sense of any perceived stimulus to better understand the reality that surrounds us and act before it. Through perception we process information from the senses, with which the brain builds and tries to give meaning to those stimuli that reach it. However, each person captures, selects and organizes sensory stimuli differently and, therefore, arrives at different interpretations and responses when solving a problem, in which memory and experience also form a fundamental role. Thus, differences between perceptions help explain how people interpret the environment and why they behave differently in the same situation. For example, when we recognize a specific object, an action can be initiated, in which a motor activity is propitiated in response to that recognition, and which can be different in each person.

3 0
3 years ago
You slide your supply basket across your lab table while using about 5 N of force. You
blagie [28]

Answer:c

Explanation:

8 0
2 years ago
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