true or false a homologous structure serves no funtion
Answer:
I think its true ..... ...
A, The largest part of the leg. B, Connects muscle to bone. C, Fills space between bones. D, Connects bone to bone. E, Skeletal part of the leg.
A:
B:
C:
D:
E:
Answer:
a:muscle
b:tendon
c:cartilage
d:ligament
E:bone
Explanation:
The largest part of the leg is muscle, tendon connects muscle to bone, cartilage fills space between bones.
What are bones?Bone is a solid bodily tissue made up of cells encased in a lot of dense intercellular substance. Collagen plus calcium phosphate, the two main components of this substance, set bone apart from other hard tissues like chitin, enamel, or shell. The individual bones that constitute the human spine or the skeletons of many other vertebrates are composed of bone tissue.
The mechanical stress of soft tissues, like the muscles contracting as well as the expansion the lungs, requires structural support from bone. Bone also protects soft tissues and organs, like the blood-forming system, and serves as a protective place for specialized tissues.
The largest part of the leg: muscle
Connects muscle to bone: tendon
Fills space between bones: cartilage
Connects bone to bone: ligament
Skeletal part of the leg: bone
Therefore, the largest part of the leg is muscle, tendon connects muscle to bone, cartilage fills space between bones.
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How can you account for the great number, size, and complexity of organic compounds?
Answer:
Explanation:
"how can you account for the great number, size, and complexity of organic compounds? carbon can bond with so many elements. It can bond with itself and form long chains. Also, all macromoleculse are composed of C,H,N, and O."
Organic compounds number in the millions, far outnumbering inorganic compounds. The reason for this is due to the uniqueness of carbon's structure and bonding abilities.
What are organic compounds?Any of a wide range of chemical compounds in which one or more carbon atoms are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.
Carbides, carbonates, and cyanides are among the few carbon-containing compounds that are not classified as organic.
Organic compounds in the body include carbohydrates, lipids (including phospholipids), proteins, nucleotides, and nucleic acids.
Water (H2O), bimolecular oxygen (O2), carbon dioxide (CO2), and some acids, bases, and salts are the most important inorganic compounds. The human body is 60-75% water.
Organic compounds outnumber inorganic compounds by orders of magnitude. This is because of the uniqueness of carbon's structure and bonding abilities.
Thus, this way, one can account for the great number, size, and complexity of organic compounds.
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Why do the winds appear curved above the surface of the Earth?
Answer:
Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect. Click the image for a larger view.
Explanation:
HELLLLPPP PLEASEEEEE!!!!
Which is an organelle that performs photosynthesis and is paired with its correct function?
A) Chloroplast-converts light energy into chemical energy.
B) Chloroplast-converts chemical energy into light energy.
C) Mitochondrion-converts cellular energy into glucose chemical energy.
D) Mitochondrion-converts energy found in glucose into energy for cells.
Answer:
A
Explanation:
Plants absorb the light and turn it into chemical energy with the help of chloroplasts
Chloroplast is the organelle in the plant cell which converts light energy into chemical energy. Chloroplast performs photosynthesis. Thus, the correct option is A.
What is Chloroplast?A chloroplast is a type of membrane-bound organelle which is known as a plastid which conducts photosynthesis mostly in the plant cells and algal cells. Chloroplast are the organelles which convert the light energy into chemical energy in the form of carbohydrates (sugar). The photosynthetic pigment chlorophyll is present in the chloroplast which captures the energy from sunlight, converts it, and stores it in the energy-storage molecules such as ATP and NADPH while freeing up the oxygen molecule from water in the cells.
Chloroplast is the double membranous organelle which is present in the plant cells and certain algal cells. This organelle is absent in the animal cells. Thus, they cannot perform photosynthesis.
Therefore, the correct option is A.
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how is the igneous rock formed
Answer:
Igneous rocks are formed when magma solidifies and cools down.
two specific examples of radioactive isotopes being used as “spies”
Answer:
Carbon-14 in photosynthesis and Florbetapir (18F) in PIB of Alzheimer's disease.
Explanation:
These radioactive isotopes known as the biological spies as they tell or mark the presence or activity of a particular atom to the scientists in living beings.
For instance,
1. the process of photosynthesis can be understood by observing the radioactive isotope Carbon-14 from taking the carbon dioxide to the generation of glucose molecule by molecule process.
2. A protein that is deposited in people with Alzheimer's disease, called beta-amyloid. It is bind with another protein known as PIB, which contains Florbetapir (18F) a radioactive isotope. It gives an idea about the location of PIB and deposits in amyloid to try to eliminate the protein deposits and check the effect of medication.
Which of the following best describes what is represented by the arrows in the food web?
A
The photosynthetic rates of producers
B
The flow of energy
С
The movement of predators
D
The decomposition of matter
Answer:
B
Explanation:
Arrows show the flow
Which of the following is the classic hot and dry desert?
a. arid desert
b. coastal desert
C. cold desert
d. none of the above
Please select the best answer from the choices provided
B
ОООО
С
D
Answer:
A
Explanation:
Among the options given, the arid desert represents an example of the classic hot and dry desert. Thus, the correct option for this question is A.
What are the characteristics of the hot and dry deserts?Hot and dry deserts have extremely hot climates and challenging environments. There is very little biodiversity in hot deserts because of the harsh climate. Few species are specialized enough to survive there. Apart from this, the climate is very dry with less than 250 mm of rainfall a year.
According to the context of this question, cold deserts have extremely low temperatures and snowfall. While coastal deserts occur in cool to warm areas along the coast. They have cool winters and long, warm summers. Coastal deserts are located on the west coasts of continents between 20° to 30° latitude.
Therefore, the arid desert represents an example of the classic hot and dry desert. Thus, the correct option for this question is A.
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The channels in cell membranes that help substances to move in and out
of cells during active transport are made of
A. protein.
B. chlorophyll.
C. cytoplasm
D. carbohydrates.
Answer: proteins
Explanation:
How will our sun change position on the HR
diagram?
Answer:
Around the year 7.1 billion AD, the Sun will begin evolving so rapidly that it will cease to be a main-sequence star. Its position on the H-R diagram will begin to shift from where it is now, near the center, towards the upper right where the red giants live.
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Answer:
I'm about to join, I won't report
What causes daytime and nighttime on earth
A sun spins in space
B earth revolves around the sun
C earth spins in space
D the sun revolves around earth
Answer:C
Explanation: I am Smart
action of pancreatic juice
a_chemical transformation
b_mechanical transformation
Answer:chemical
Explanation:
*urgent* The liver is essential to the health of the organism. One major function of the liver is–
A) To create tissues
B) To perform proper organ functions with individual cells
C) To synthesize amino acids
D) All of the above
Answer:
I believe that the answer is C
Give the symbols for the element that makes up each of the following:
______Carbohydrates.______ Lipids. _____DNA. _____Proteins.
Answer:
The correct answer is :
1. CHO
2. CHO
3. CHONP
4. CHON
Explanation:
Carbohydrates are composed of the carbon, hydrogen, oxygen in the ration of 1:2:1 which means hydrogen atoms are double than oxygen and carbon atoms. Carbohydrates are also known as sugars or polymer of sugars.
Lipids are composed of long chains of fatty acids made up of carbon, hydrogen, and oxygen molecules that are insoluble however ade up of organic molecules.
DNA or deoxyribose nucleic acid is the basic unit of cell and known as genetic material. It is made up of ribose sugar, a nitrogenous base, and phosphate backbone so elements that make these nutrients are Carbon, hydrogen, and oxygen with nitrogen and phosphorus.
Proteins are made up of amino acids that have carbon, hydrogen, oxygen, and nitrogen element in them.
The 4 macromolecules are namely Carbohydrates, Proteins, Nucleic acids, and Lipids. The composition of each macromolecule is defined by the elements present.
The symbols for the element that makes up each macromolecule are listed below:
Carbohydrates-H, C, and O(Hydrogen, Carbon, and Oxygen) Lipids-H, C, and O(Hydrogen, Carbon, and Oxygen) DNA-O, H, N, C, and P(Oxygen, Hydrogen, Nitrogen, Carbon, and Phosphorus) Proteins-O, H, C, and N(Oxygen, Hydrogen, Carbon, and Nitrogen)Thus, the symbols of the element that make up Carbohydrates, Proteins, Nucleic acids, and Lipids are defined.
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Which organs are part of the musculoskeletal system? Select all that apply.
bones
hair
muscles
skin
tendons
nails
Question 4 (3 points)
Which of the following structures would you not find in a prokaryotic cell?
third
How much work is done if a person carries 5n of candy 25m when trick or treating
HELP PLEASE
Answer:
Work done W = 125 N-m
Explanation:
Given:
Force F = 5 n
Distance D = 25 m
Find:
Work done W
Computation:
Work done W = Force F x Distance D
Work done W = 5 x 25
Work done W = 125 N-m
help asap due in 10 minutes
Answer:it's a producer bro
Explanation:
anyone know what this would be?
Answer:
It would be true
Explanation:
The wooden cube below has a volume of 500 mL and a mass of 30 grams. Calculate its DENSITY.
B.) 1.0 g/mL
.A.) 06 g/mL
C.) 19 g/mL
D.) .9 g/mL
Answer:
0.06 or what I believe to be A
Explanation:
D=m/v
D=30/500
D=0.06
A bird stalks, kills, and then eats an insect. Based on its behavior, which ecological terms describe the bird? Choose all that apply.
Carnivore
Carnivore
Autotroph
Autotroph
Heterotroph
Heterotroph
Producer
Producer
Herbivore
Who was affected with mercury poisoning ?
people who take in to much Mercury then get mercury poisoning
Which of the following is a symbiotic relationship where one partner benefits and the other does not benefit or lose from the relationship?
Answer:
Commensalism
Explanation:
The largest organ in the body is the
Answer:
the skin
Explanation:
it's the largest organ
Answer:
Skin
Explanation:
Skin carry some 8pounds and 22square feet
Two bicyclist are accelerating forward at the same rate. Biker 1 has less mass than biker 2. Which statement describes the net force on the bikers?
Answer:
Answer: the answer is the net force on biker 2 is greater than in biker 1
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Which of the following statements is NOT an example of evidence?
O The object's length 30 cm.
O The liquid was red in color.
O The liquid froze at 10°C.
O The liquid was identified as water because of its appearance.
Answer:
its the 4th one, you can't base something off appearance
The lab setup shows four test tubes. Tube 1 contains water only. Tube 2 contains a live snail. Tube 3 contains a live green water plant. Tube 4 contains both a live green water plant and a live snail.
In this setup, which tubes contain at least one organism carrying on cellular respiration?
A) Tubes 1 and 2 only.
B) Tubes 2 and 4 only.
C) Tubes 3 and 4 only.
D) Tubes 2, 3, and 4 only.
Answer:
D
Explanation:
true or false: 1. T F Cities are usually colder than their surrounding regions. 2. T F Climate has no effect on the formation of soil. 2.T F Mangroves are a keystone species. 3. T F The brackish water of estuaries does not support a diversity of marine life. 4. T F Large browsing animals are abundant in chaparral. (O
Answer:true
It is true
Explanation:
Answer:
Yup it's True!
Explanation: