Answer:
The correct answer is - cell membrane.
Explanation:
Cell membrane or plasma membrane is the outer structure that enclosed the cell-matrix and cell organelles and acts as a barrier to the substances and things to move in or out of the cell and allows only specific substances and molecules to move in and out of the cell.
If the cell membrane is not performing its function properly it might result in blocking the various nutrients and other essential molecules to move in and metabolic substances to move out of the cell.
Answer:
Cell Membrane
Explanation:
I just took a test
Brainliest if correct pls
What is a trait called when it is controlled by more than one gene? O A. Adaptive O B. Disruptive O C. Polygenic O D. Flowing
Answer:
The answer is C. Polygenic
The human body uses specialized biomolecules to speed up chemical reactions. These are called enzymes. Without enzymes, the reaction in the body would happen too slowly to keep you alive.
Which biomolecule do enzymes belong to?
A. Proteins
B. Lipids
C. Nucleic acids
D. Carbohydrates
Answer:
A
Explanation:
Enzymes are proteins.
Bacteria cannot survive in deep ocean areas where no light is present. true or false
Answer:
false on edge
Explanation:
Although the liver and the pancreas are not part of the digestive tract, they are important to the process of digestion because: a. Secretions they produce help to digest food b. They absorb nutrients into the bloodstream c. They eliminate wastes from the body d. All of the above
Answer:
The correct answer is - d. all of the above.
Explanation:
The liver and pancreas are not part of the digestive tract but they play a very major role in the process of digestion. The liver and pancreas both produce and secretes the enzymes and bile to breakdown the food into nutrients. Bile digests the fat while enzymes of the pancreas break down protein, carbohydrates, and fats.
The liver helps in absorbing the fats and some vitamins and minerals to the bloodstream from the nutrient from digested food. They also help in the removal of toxins and wastes from the digested food or the waste products of breaking down into nutrients through the feces or filtered from the blood by the kidneys.
Which of the following is not an example of selective breeding?
A. Breeding fruit for taste and color.
B. A tiger's strength and speed.
C. Breeding cows for fertility and milk production
D. Wheat bred to produce more grain per plant.
Answer:
B
Explanation:
A tiger strength and speed is not an example of selective breeding.
when benedicts solution is added to a sucrose solution and put into a boiling water-bath , no change in color is observed
state why no color change is observed
Answer:
b
Explanation:
1) which of the following statements describes a way in which plant cells and animal cells at similar?
a. Both cell types have cells walls
b. Both cell types have mitochondria
c. Both cell types are autotrophs
d. Both cell types are prokaryotic
During exercise, a person’s need a constant supply of ATP. To help us make ATP, the rate (speed) of which process increase?
a. mitosis
b. protein synthesis
c. cellular respiration
d. photosynthesis
1)b.both cell types have mitochondria
that they need for cellular respiration
2)c.cellular respiration
for ATP production
Answer:
They both undergo cellular respiration.
Explanation:
In which cellular organelle is genetic information (DNA) held?
A. Mitochondria
B. Ribosomes
C. Cell membrane
D. Nucleus
Answer: d. nucleus
Explanation:
On a line graph, the variable on the vertical (y) axis is the
control
independent variable
variable with the largest range
dependent variable
Answer:
dependent variable
Explanation:
In an experiment, a line graph can be used to display the results of the experiment. A line graph, which posseses two axis namely: x-axis or horizontal axis and y-axis or vertical axis, can be used to show the relationship between the independent and dependent variables in an experiment.
The independent variable, which is the variable subject to change is displayed on the X-axis while the dependent variable is displayed on the vertical or Y-axis.
what are reproductive cells called?
I really need help with this I need one more answer
Answer:
also E
Explanation:
mark me as brainliest
All cells divide and reproduce the same way ... true or false explanation needed
Answer:
False
Explanation:
False because cells can reproduce in two ways. Mitosis, the process of making new body cells or cell division. OR Meiosis where there is genetic information transfered between cells such as how humans are made.
All cells do not divide and reproduce the same way since there are two methods for cells to divide. So, the given statement is False.
What is Cell division?The process by which a parent cell divides into two daughter cells is known as cell division. Cell growth and chromosome replication precede cell division, which often happens as part of a longer cell cycle. Usually, cell division happens as part of a longer cell cycle where the DNA is reproduced as the cell nucleus divides during cell division.
Meiosis and mitosis are the two processes through which cells can reproduce. The process of creating new body cells, or mitosis, differs from meiosis, which is the process by which genetic material is passed between cells, as in the creation of humans. Thus, not all cells divide and reproduce in the same way.
Therefore, the given statement is False.
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Please look at the photo
Answer is b and f
Explanation:
Which statement is true based on the data in the table?
O The United States uses more land to grow crops
than to maintain forests.
O The United States uses more land for parks and
wildlife than for forests.
O The United States uses more land for parks and
forests than for urban areas.
O The United States uses more land for urban areas
than for grasslands and ranges.
Answer: C
Explanation:
The United States uses more land for parks and forests than for urban areas. Therefore, option "C" is correct.
What are the nature protection strategies of the United States?The 42,826 protected areas in the United States covered 1,235,486 km2 in 2022, or 13% of the country's land area. The country system includes 424 areas which covering more than 85 million acres in every state, the District of Columbia, and American Samoa.
The smallest park is Gateway Arch National Park in Missouri, which is 91 acres. This is also one-tenth of the world's protected land area. National parks protect a total of approximately 52.2 million acres, with a median of only 208 thousand acres.
Therefore, other nations should also follow the same strategies and do afforestation.
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why can we say that most life on Earth is powered by the sun
Answer: The sun is the closest star to Earth. ... It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce.
4. Use the table below to choose the incorrect statement.
A.Goldfish sperm cells have 47 chromosomes.
B.Before Mitosis, after S phase, a human blood cell has 92 chromosomes.
C.Pea plant epidermal (leaf) cells have 7 chromosomes.
D.Human skin cells have 46 chromosomes.
Answer: the answer is C) Pea plant epidermal (leaf) cells have 7 chromosomes.
Explanation: plants have 16 chromosomes
Which type of microscope produced the image of cilia?
Answer:Scanning electron microscopy
Explanation: Scanning electron microscopy (SEM) image of oviduct cilia. The central cell shows a primary cilium. Surrounding cells are multiciliated with motile cilia
Hope that helps!
Which statement correctly describes gravity?
A. a repulsive force that acts between all objects through contact
B. a repulsive force that acts between all objects without contact
C. an attractive force that acts between all objects without contact
D. an attractive force that acts between all objects through contact
Answer:
C. an attractive force that acts between all objects without contact
Explanation:
The force of gravity, first discovered by Isaac Newton, is one of the four fundamental forces. It is a force that is always attractive, and it is exerted between all objects that have mass. Also, the force is exerted even when the two objects are not in contact.
The magnitude of the force of gravity between two objects is given by
where
G is the gravitational constant
m1 and m2 are the masses of the two objects
r is the distance between the two objects
Mark me the brainliest answer if this helped ;3
Answer:
C
Explanation:
Hey, please answer the stuff under the orange line. Tysm.
Answer:
the best thing to do is don't copy anything from off the computer or from nobody else
Do it for the points i will report
Answer:
it's the 2nd one
Explanation:
your welcome
Drag the tiles to the correct boxes to complete the pairs.
Identify the types of Inheritance based on the expression of alleles in the organism.
dominant
recessive
multiple
presence of many alleles for
the tralt to be expressed
presence of two alleles for
the trait to be expressed
presence of a single allele for
the trait to be expressed
Reset
Next
Answer:
Multiple
Recessive
Dominant
The presence of many alleles for the trait to be expressed is called "multiple allelism," the presence of two alleles for the trait to be expressed is called "recessive," and the presence of a single allele for the trait to be expressed is called "dominant."
What are the dominance and multiple allelic patterns?There are different types of genes in animals and plants, such as some that have two copies of alleles, but if one is present, it can express itself in a heterozygous state, which is called a dominant gene because it can suppress the other allele, but some genes can only express themselves when there are many alleles, which are called multiple alleles.
Hence, the presence of many alleles for the trait to be expressed is called "multiple allelism," the presence of two alleles for the trait to be expressed is called "recessive," and the presence of a single allele for the trait to be expressed is called "dominant."
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In what ways are active transport and passive transport similar?
Answer:
Active and passive transport are similar in both transport ions, using ion channels to move ions across the cell membrane.
(See the image for better understanding)
Explanation:
QUICKK please helpp
which of the following statements cite evidence that supports or led to the discovery of the cell theory. select all that apply.
- development of the microscope
- schledians observation of plant cells in various samples of the plant tissue
- cells were found in animal tissue
- watson's and cricks discovery of the structure of dna
- one celled organisms reproduce by binary fission
- plants carryout photosynthesis
-meiosis
- spontaneous generation is accepted amount scientist
Answer:
- development of the microscope
Explanation:
How does a cell get energy?
Answer:
A cell gets it's energy from the mitochondria.
Explanation: Sorry no one answered! :3
Which of the following is an example of a nonsense mutation?
a
A substitution of glycine amino acid for a stop codon
b
An insertion or deletion of nucleotides that is not a multiple of three
С
A substitution of a serine amino acid for a glycine amino acid
d
A codon mutated from CCG to CCA, both coding for glycine
Answer:
i really dont know but i think C
PLEASE help its a question about rocks I'm tryna score a 80
Answer: The answer is C
Explanation:
lavas cool quickly at the earth's surface and are characterized by fine-grained texture, in which the crystals are too small to be seen by the unaided eye. Very quickly cooled lavas, typically those quenched in water, will have a glassy texture. They cool too quickly to form crystals.
What does fossa mean?
Answer: a shallow depression or hollow. or Fossa - A shallow depression in the bone surface. Here it may receive another articulating bone or act to support brain structures. Examples include trochlear fossa, posterior, middle, and anterior cranial fossa.
Explanation:
The fossa is the largest carnivorous mammal on the island of Madagascar.
What is the criteria used to classify mammals into groups?
based on the type of food they eat
based on their appendages used for movement
based on how their embryos develop
based on their type of hair
Answer:
based on how their embryos develop
Explanation:
Mammals are further classified into three types: placental, marsupial, and monotreme.
Also, I just took the quiz and I got it right, mate :)
The criteria used to classify mammals into groups is the presence of hairs.
Mammals:
They are the animals who have mammary gland mean the mother feeds the milk to their newborn.
One unique characteristics of the mammal is that they have have hair in at least one stage of their development.
No other animals like reptiles or birds have true hairs.
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What does labor need contractions for
Answer:
A contraction is when the muscles of your uterus tighten up like a fist and then relax. Contractions help push your baby out. simple as that
Explanation:
Special chemicals that recognize and attach to germs are called what?
A. Antibodies
B. Red blood cells
C. Pathogens
Special chemicals that recognize and attach to germs are called Antibodies. Thus, the correct option is A.
What is Antibody?An antibody may be characterized as a protein produced by plasma cells in response to a specific antigen.
The major function of an antibody is to eliminate disease-causing organisms which are known as pathogens or any other external germs and barricade them from contaminating human cells.
Such antibodies after synthesis attach to germs or digested antigenic particles and then mediated the process of eliminating all such foreign particles.
Therefore, special chemicals that recognize and attach to germs are called Antibodies. Thus, the correct option is A.
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