BIOLOGY HIGH SCHOOL

Find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer below.A.682
B.2044
C.2048
D.678

Answers

Answer 1
Answer: First, we need to solve for the common ratio from the data given by using the equation.

a(n) = a(1) r^(n-1)
1024 = 4 r^(9-1)
256 = r^8
r = 256^(1/8)
r = 2

Then, we can find the sum by the expression:

S(n) = a(1) ( 1 - r^n) / 1-r
S(9) = 4 (1 - 2^9) / 1-2
S(9) = 2044

Therefore, the correct answer from the choices listed above is option B.
Answer 2
Answer:

Answer:

2044, B

Explanation:

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Marriot is observing a model of a rib cage in her school laboratory. She can see that some of the ribs are attached to a cartilage and not directly to the sternum, and some are incomplete and do not attach to the sternum. Which ribs must she be observing?A. False ribs and floating ribs respectively

B. Floating ribs and false ribs respectively

C. True ribs and false ribs respectively

Answers

C. True Ribs and False Ribs respectively. Both true ribs and false ribs are not directly attached to the sternum as they are connected by a cartilage known as the costal cartilage. Incomplete ribs, which are called the floating ribs are part of the false ribs. 

Which type of chromosomal mutation is responsible for causing Turner syndrome

Answers

Answer:

This syndrome is caused by the deformity or absence of the X chromosome.

Explanation:

The X chromosome is the one that women contributes in the process of fertilization. In this syndrome the X chromosome is defective or absent.

Girls born with this problem have different alterations that can cause a disorder in musculoeskeletal development or also the absence of their internal genital  characters.
The chromosomal mutation that causes Turner syndrome is that there is no second chromosome that determines sex of the individual. It was also called "monosomy disorder"

Compare and contrast carbohydrates and proteins.Describe the function of each macromolecule.
Explain one way they are the same and one way they are different.

Answers

Carbohydrates and proteins are two types of macromolecules that play critical roles in living organisms.

How carbohydrates are made?

Carbohydrates are organic molecules made up of carbon, hydrogen, and oxygen atoms. They are primarily used as a source of energy for the body, but they also serve other functions such as structural support, cell signaling, and cell recognition. Some examples of carbohydrates include sugars, starches, and fibers.

Proteins, on the other hand, are organic molecules made up of amino acids. They have a wide range of functions, including structural support, enzyme catalysis, transport, storage, communication, and defense.

One way that carbohydrates and proteins are similar is that they are both macromolecules that are essential to life. They are both made up of smaller building blocks - monomers - that are linked together through chemical bonds to form more complex structures.

One way that carbohydrates and proteins are different is that their functions are distinct. While carbohydrates are primarily used as a source of energy, proteins have a wide range of functions that are critical to the structure and function of the body.

In summary, carbohydrates and proteins are both important macromolecules with distinct functions. Carbohydrates are primarily used as a source of energy, while proteins have a wide range of functions critical to the structure and function of the body. While they share similarities as macromolecules, their functions are distinct and serve different purposes in the body.

Learn more about macromolecule at:

brainly.com/question/15237842

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Answer:

1.Carbohydrates are used for energy (glucose). Fats are used for energy after they are broken into fatty acids. Protein can also be used for energy, but the first job is to help with making hormones, muscle, and other proteins. Broken down into glucose, used to supply energy to cells.

2.Nucleic acids: Stores and transfers info. Carbohydrates; Store energy, provide fuel, and build structure in body, main source of energy, structure of plant cell wall. Lipid: Insulator and stores fat and energy. Protein: Provide structural support,transport, enzymes, movement, defense.

Explanation:

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Put the following species in the order in which they hear ranges of sound, from low to high pitches 1. sea turtles 2. humpback whales 3. humans 4. dolphins

Answers

Among the provided above, below is the sequence of species in the order in which they hear ranges of sound, from low to high pitches:

2. humpback whales
1. sea turtles
3. humans
4. dolphins

Thank you for posting your question here at brainly. I hope the answer will help you. 

Answer:

The correct answer is - humpback whales →sea turtles→humans→dolphins.

Explanation:

The hearing of sound is measured in hertz which is the unit of the sound that depends on the different frequencies of individual produce. The range of hearing sound is different in different animals.

Humpback whales produce sound between 30 to 8000 Hz however whales sense the vibration made by their song or sound by another whale. Sea turtles are able to hear in between the 20 to 1000 Hz whereas humans are able to hear 20 to 20000 Hz.

The highest hearing range of the sound is by dolphins from giving options as they are able to hear sound between 40 to 130000.

Thus, the correct answer is- humpback whales →sea turtles→humans→dolphins.

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Answers

here are 4, i hope this helps :)
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Answers

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