Answer:
Our lack of body hair and our variable skin color are some of the traits that set us apart from our closest primate relatives. Wavelengths of light are reflected or absorbed by pigment in the skin called melanin. Melanin is synthesized in structures called melanosomes that are produced by cells called melanocytes.
Explanation:
Skin colour varies considerably from person to person and is generally of their characteristics:
By the presence of melanocytes, carotene, Oxygenated haemoglobin, and Blood flow.What type of variable is skin colour?"Skin colour is a classic variable characteristic in humans, and it's thought to be adaptive," Tishkoff said. "Analysis of the genetic root of variation in skin colour sheds light on how adaptive traits evolve, including those that play a role in disease risk."
Thus, the presence of melanocytes, carotene, oxygenated haemoglobin, and blood flow.
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Which of the following statements about eukaryotic cells is NOT
true?
Eukaryotic cells have a membrane-bound nucleus
Eukaryotic cells are more complex than are prokaryotic cells.
Eukaryotic cells are believe to
e evolved more recently than
prokaryotic cells.
Eukaryotic cells are usually smaler than prokaryotic cells
Answer:
Eukaryotic cells are believed to be evolved more recently than prokaryotic cells.
Explanation:
The statement about eukaryotic cells is NOT true - Eukaryotic cells are usually smaller than prokaryotic cells
Cells are fundamental units and are mainly two types eukaryotic cells and prokaryotic. There are various structural and functional differences and similarities found in them.
Prokaryotes and eukaryotic cells have the following difference:
Prokaryotic cells lack a true nucleusProkaryotic cells lack other membrane-bound organelles.Eukaryotic cells have more organelles, enzymes, and molecules, therefore, prokaryotic cells are simpler.Prokaryotic cells are comparatively smaller than eukaryotic cells.Prokaryotic cells are evolved before eukaryotic cells.Thus, the statement about eukaryotic cells is NOT true - Eukaryotic cells are usually smaller than prokaryotic cells
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you get brainliest if you answer right
Answer:
Br, Zn, Sc, Ca, K
Explanation:
ez
In which cellular organelle is genetic information (DNA) held?
A. Mitochondria
B. Ribosomes
C. Cell membrane
D. Nucleus
Answer: d. nucleus
Explanation:
How do most primary producers make their own food? *
Explanation:
most primary producers are plants and they produce food by photosynthesis. In photosynthesis they use carbon dioxide, water and light (most times sunlight) to make glucose and oxygen. the glucose is their food and oxygen is the waste product and is given out.
Most primary producers make their own food through the process of photosynthesis.
What is photosynthesis?Photosynthesis is a biochemical process that occurs in the chloroplasts of plant cells (as well as in certain algae and some bacteria) and uses energy from sunlight to convert carbon dioxide and water into glucose (a simple sugar) and oxygen.
The chlorophyll pigment in chloroplasts captures light energy, which is then used to drive the synthesis of glucose through a series of chemical reactions.
This process allows primary producers to produce organic compounds and serve as the foundation of the food chain by converting sunlight energy into chemical energy that other organisms can consume.
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What do you think the term "ecological footprint" means?
Answer:
biologically productive land and sea area
Explanation:
Which of the following is found in the cells of
fungi but NOT of archaebacteria?
A ribosomes
B cell membrane
C DNA
D nucleus
Answer: im 90% sure its (d)
According to the question option "D" Nucleus is found in the cells of fungi but NOT of archaebacteria.
What is the difference between fungi and archaebacteria?
Fungi cell walls usually are constructed of chitin whereas Eubacteria cell walls have peptidoglycan.
Archaebacteria do not have either substance, although the cell walls of some archaebacteria contain a substance similar to peptidoglycan.
Thus, the option "D" Nucleus is found in the cells of fungi but NOT of archaebacteria.
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PLEASEEE HELPPP!! what is an example of an energy transfer in the picture?
Answer:
C
Explanation:
Answer:
C.
The answer is C. I know. I got this question right.
What are the building blocks of proteins? If all proteins are made of the same
building blocks, how can there be so many different types of proteins with different
functions?
Answer:
The basic building blocks of proteins are called amino acids. In proteins, amino acids are arranged into a linear molecule called a polypeptide chain. Some proteins only consist of a single polypeptide chain while more complex proteins are made out of multiple polypeptide chains bonded together.
Explanation:Proteins are formed out of long linear molecules of amino acids called polypeptide chains. The identity and function of a protein are determined by its sequence of amino acids and the 3-D structure of its polypeptide chains. Amino acids are stored in DNA in the form of sequences of nucleotide bases.
HELP PLEASE ASAP. A runner travels 400 meters in 80 seconds, what is the runner’s average speed?
Answer:
v = 5 m/s
Explanation:
Given that,
The distance covered by a runner, d = 400 m
Time, t = 80 sec
We need to find the runner's average speed. It is equal to total distance covered divided by time taken. It can be given by:
[tex]v=\dfrac{d}{t}\\\\v=\dfrac{400\ m}{80\ s}\\\\v=5\ m/s[/tex]
So, the runner’s average speed is 5 m/s.
Which are different forms of the same gene?
A.genotypes
B.phenotypes
C.alleles
D.traits
Answer:
alleles
Explanation:
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.
Answer:
C. alleles
Explanation:
edge 2021
1-5 plz help me its science
what is the key to natural selection ?
Answer:
Survival of the fittest?
If an oceanic plate and continent plate converge, which plate will sink?
Answer:
When an oceanic and a continental plate collide, eventually the oceanic plate is subducted under the continental plate due to the high density of the oceanic plate. Once again a benioff zone forms where there are shallow intermediate and deep focus earthquakes.
Explanation:
Which one is the correct answer?? The lined squares in the Punnett square represent____.
They represent the parent's genotypes.
Someone help me pleaseee with the answers to both of em
Please help me with this
Answer:
uses energy to work(?)
Explanation:
Answer:
uses energy to work
Explanation:
What are the effects of greenhouse gases on Earth?
Answer:
greenhouse gasses get trapped in the atmosphere and contribute to global warming
Answer: The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere.
Explanation:
What is the main type of gas that drillers are trying to obtain from fracking (gas well drilling)?
a. methane gas
b. crude oil mix
c. map gas
d. mustard gas
Answer:
a.) Methane Gas
Explanation:
Predation is when a predator feeds on another organism, which is referred to as the predator's prey.
True
False
Answer:
True
Explanation:
Predation is another mechanism in which species interact with each other. Predation is when a predator organism feeds on another living organism or organisms, known as prey. The predator always lowers the prey's fitness. Also, a predator is an organism that eats another organism. The prey is the organism which the predator eats. Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit.
What make a dwarf planet different from a planet?
A.
Dwarf planets are usually smaller than the moons of a planet.
B.
Unlike planets, dwarf planets do not have natural satellites.
C.
Planets have cleared their orbital paths of debris, while dwarf planets have not.
D.
Planets have a nearly spherical shape, while dwarf planets are irregular in shape.
E.
Dwarf planets do not orbit in the same plane as the other planets.
Answer:
Dwarf planets are usually smaller than the moons of a planet.
Explanation:
Answer: C
Explanation: dwarf planets lack the gravitational forces needed to pull in and accumulate all of the material found in their orbits.
edmentum-2022
Who is the inventor of the modern classification system?
Answer:
Carolus Linnaeus
Explanation:
Answer:
Carolus Linnaeus
Explanation:
In a zoo located in a warm region, which should be included in the polar bear exhibit?
A food bowl with fruit
B hot, bright lights
C cold-water pool
D tall palm trees
Answer:
C Cold - Water pool
Explanation:
The two polar bear habitats are very different and provide unique experiences for the bears to investigate. To keep the bears cool, the floors in the Ice Cave are chilled by cold water running underneath and their pools are kept between 50 - 60°F. Keepers train the bears to voluntarily take part in preventative health care.
Which of the following best describes the purpose of the chromosomes in the nucleus of a cell?
Group of answer choices
to transport nutrients into and out of the cell
to release energy by breaking down food molecules
to protect the cell from microorganisms
to store the genetic instructions needed to specify traits
The purpose of the chromosomes in the nucleus of a cell is to store the genetic instructions needed to specify traits
In order words, the chromosomes in the nucleus of a cell ensures that DNA is replicated and distributed appropriately during cell division.
What is nucleus?The nucleus is a part of living cells which controls all cellular activities of a cell
In conclusion, the purpose of the chromosomes in the nucleus of a cell is to store the genetic instructions needed to specify traits.
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How is the DNA code itself a homology?
Answer:
Explanation:
These fundamental similarities are most easily explained by evolutionary theory: life shares a common ancestor. ... In fact, the DNA code itself is a homology that links all life on Earth to a common ancestor. DNA and RNA possess a simple four-base code that provides the recipe for all living things.
Answer:
the DNA code itself is a homology that links all life on Earth to a common ancestor. DNA and RNA possess a simple four-base code that provides the recipe for all living things.
WILL GIVE BRAINLIEST!
what is micro organization?
Answer:
micro organisms are small organisms
Explanation:
Micro-Organisms are those organisms which are so Tiny that they can not be seen with the naked eyes but with the aid of an Electron microscope.
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please make me brainliest
Explain how specific proteins are formed from a strand of mRNA.
Answer:
During translation, ribosomes move along an mRNA strand, and with the help of proteins called initiation factors, elongation factors, and release factors, they assemble the sequence of amino acids indicated by the mRNA, thereby forming a protein.
Explanation:
Answer:
Explanation:
Los ARN mensajeros, también conocidos como ARNm, son uno de los tipos de ARN que se encuentran en la célula. Éste en particular, como la mayoría de los ARN, se sintetiza en el núcleo y luego se exporta al citoplasma, donde la maquinaria de traducción, la maquinaria que realmente fabrica las proteínas, se une a las moléculas de ARNm y lee en ellas el código para producir una proteína específica. Así que en general, un gen, el ADN de un gen, puede ser transcrito en una molécula de ARNm que puede acabar dando lugar a una proteína específica.
A male cardinal’s red color is an example of a trait affected by natural selection. The females of the species choose mates based on the vibrant colors of the males’ feathers. If females begin using different criteria than feather color when they choose mates, what would most likely happen to the color of the male cardinals over time?
increased variation in the shades of red because there is no advantage in one specific color
increased variation in the shades of red because the cardinals try different ways to impress the females
decreased variation in the shades of red over time because no form of the trait is advantageous
decreased variation in the shades of red after a single generation
Answer:
decreased variation in the shades of red over time because no form of the trait is advantageous
Explanation:
If the vibrant red feathers are no longer used to attract mates, then it is no longer useful to the males, so it will cease to exist.
Answer:
C. decreased variation in the shades of red over time because no form of the trait is advantageous
Is tRNA used in the Calvin cycle
Albino individuals lack all pigmentation so that their hair and skin are white. The
transmission of Albinism is shown on the pedigree below.
According to the pedigree, what is the mode of inheritance for this condition?
all you need is in the photo
Answer:
There are seven essential processes in common: movement, respiration, sensitivity, growth, reproduction, excretion and nutrition or MRS GREN.
but i think the answer is D
Explanation: