Answer:
Yes
Explanation:
Environmental factors caused many different traits in people, for instance the different skin pigments of people depend on where their ancestors came from. European descendents tend to absorb more sunlight and get sunburned easily, whereas African descendents have skin that is suitable for their environment. Other characteristics include immunity to malaria or the speed at which one's blood can carry oxygen. These traits came slowly through natural selection as people evolved to become suited for their environment.
What is menstruation
Answer:
a period
bleeding from the woman's parts
Explanation:
A scientist is studying specialized cells that help pump blood. Which cells is she most likely studying?
neurons, which are a type of muscle cell
cardiac cells, which are a type of muscle cell
epithelial cells, which are a type of blood cell
white blood cells, which are a type of blood cell
Answer:cardiac cells
Explanation:
The heart pumps blood and cardiac cells are found in the heart
Need HELP
Of the items listed, what is something that could be used to help tell the history of an area?
rock layers
animal habitats
human settlements
plant life
Answer:
rock layers becuase fossils and other ancient things could be in there
A sound wave passes from air into water and then into steel. With each change in medium, what happens to the speed of the wave?
A
It increases, then decreases.
B
It increases.
C
It decreases.
D
It decreases, then increases.
Answer: YOUR ANSWER IS C- DECREASES
Explanation:
A P E X
pls help me ill give brainliest .
PLZ HELP!!!
Which layer of Earth has convection currents?
A. Asthenosphere
B. Crust
C. Lithosphere
D. Mesosphere
Answer:
D is answer
i
hope
it
helps
uwu
What is Grow food??????? and wat is the answer :)
What effect can fertilizer runoff have on an aquatic ecosystem?
a.
increased plant growth leading to a decrease in fish populations
b.
increased plant growth leading to an increase in fish populations
c.
decreased plant growth leading to a decrease in fish populations
d.
decreased plant growth leading to an increase in fish populations
Please select the best answer from the choices provided
A
B
C
D
Answer:
A
Explanation:
Hopefully this helps
Answer:
A
Explanation:
Trust the process - Edge 2021 -
DNA replication results in two identical daughter molecules each consisting of one old (original) strand and one newly-synthesized strand.
True
False
Answer:
true
Explanation:
please mark me brainliest
DNA replication results in two identical daughter molecules each consisting of one old (original) strand and one newly-synthesized strand. Therefore, it is true.
What is DNA replication?The process of duplicating the parent DNA helix into two identical daughter helices is known as DNA replication. One parent strand is passed down to each daughter strand in this semi-conservative procedure.
In prokaryotic cells, DNA replication takes place in the nucleoid area, whereas it happens in the nucleus in eukaryotic cells. Prior to cell division, DNA replication takes place in the S phase of the cell cycle.
Replication fork pairs that form at the origins of replication and then move in opposition to one another carryout genome duplication. When convergent replication forks meet, DNA replication is complete. Hence, it is true.
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a web of proteins in the cytoplasm that keeps a cell's membrane from collapsing is a?
Answer: Cytoskeleton
Explanation: The cytoskeleton is the web of proteins in the cytoplasm. -It acts as a muscle and a skeleton. -It keeps the cell membrane from collapsing.
HELPPPPPPP
Which of the following is effective in reducing the number of viral infections?
1. antibodies
2. vaccines
3. innoculation
4. none of the above
Answer:
Explanation:
Vaccines
One student made the incomplete diagram shown below to represent the relationship between magma, igneous rocks, and metamorphic rocks:
three ovals, labeled from left to right, metamorphic rock, magma, and igneous rocks respectively.
Which of these is the correct next step to complete the diagram?
Put an arrow labeled cools and crystallizes, pointing from igneous rocks to metamorphic rocks.
Put an arrow labeled cools and crystallizes, pointing from metamorphic rocks to igneous rocks.
Put an arrow labeled heat and pressure, pointing from igneous rocks to metamorphic rocks.
Put an arrow labeled heat and pressure, pointing from metamorphic rocks to igneous rocks.
30 POINTS
Answer:
Because you know when the magma falls down as lava
Explanation:
When the lava grows it boils the rocks createing a burn of magma
Answer:I think it’s c
Explanation:
In the 1950s, the structure of DNA was discovered by using models and x-ray chromatography. Currently, science has used advanced technology to completely map out the genes in a human’s body. What would be the best advantage of using this information?
Answer:
Recently around 2008 i believe a female scientist found the end of our chromosomes and what the enzyme telomerase did.
Explanation:
What was awesome was they telomerase fixes the small fragements of DNA that degrade over time. A study was done on mine one was treated with the enzyme the other was not keep in mind the mice were old. The reated mice actually seemed to reverse age because its fur became shinier and its bones strong it just seemed healtehr and it was. The other of course stayed old. So the discoveries help push our life expectancy farther than we used to think was convinient
Answer:
gene therapy to correct defective genes that cause diseases.
Explanation: i hope this is right.
what is abberant motor behavior
Answer:
according to whether the "activity disturbance"
Explanation:
brainest plz
Answer:
dunno tbh g
Explanation:
The table shows a DNA sequence and three types of mutations that can change the DNA sequence.
Which mutation will cause translation to stop?
Answer: The answer is sample 1 if I’m not mistaken
Explanation:
Because it is :) but yeah...
sample 1 mutation will cause translation to stop. nonsense mutation can cause the termination of translation
What is mutation ?Mutations are defined as the change in the nucleotide sequence of genetic material due to different process such as substitution, deletion or insertion of the nucleotides leading to changed or faulty protein.
The type of mutations leads to the early and delayed termination of the transcription of a gene, mutation of a single nucleotide leads to termination of transcription otherwise called as nonsense mutation.
If a mutation shows no effect on the protein, known as the silent mutation.
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IN YOUR OWN WORDS what is
Interphase
G0 (Gap 0)
G1 (Gap 1)
S (Synthesis)
G2 (Gap 2)
Mitosis
Answer:
interphase:(longest stage in the cell cycle)
g1:initial growth to normal size
s:synthesis of DNA (replication)
g2:growth to 2x the normal size
please answer this question
Answer:
The trend shows that the Enzyme Pepsin is active and prefers the pH level of 2. While Trypsin Is much active at pH 8 and prefers that pH level.
Explanation:
You can tell by seeing the enzyme activity compared to the pH range. Enzymes are simply proteins which work around your body so pepsin since it is active in acidic levels (pH 2) is probably an enzyme found in the stomach.
The trend shows that the Enzyme Pep sin is active and prefers the pH level of 2. While Trypsin Is much active at pH 8 and prefers that pH level.
What are the functions of enzyme pepsin?Pepsin is an endo peptidase that breaks down proteins into smaller peptides. It is produced in the gastric cells of the stomach lining and is one of the main digestive enzymes in the digestive systems.
Pep sin is a stomach enzyme that serves to digest proteins found in ingested food. Gastric chief cells secrete pep sin as an in active zymogen called pepsinogen.
In the digestive tract pepsin effects only partial degradation of proteins into smaller units called peptides, which then either are absorbed from the intestine into the bloodstream.
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What are the primary processes that increase genetic variability?
A. sexual reproduction and mutations
B. cloning and binary fission
C. asexual reproduction and mitosis
D. budding and recombination
Answer:
A
Explanation:
Help pleaseeeee
A patient has a severe bacterial infection. within a few weeks of treatment with an antibiotic, the bacterial population consists entirely of
antibiotic-resistant bacteria. How can this outcome most likely be explained?
OA The antibiotic caused a mutation in the bacteria's RNA,
OB. The bacteria began reproducing at a faster rate than before the antibiotic treatment.
Oc. The antibiotic created resistance in the bacteria, and the bacteria are passing the resistance to one another.
oDA Small population of antiblotic-resistant bacteria were present before the treatment, and natural selection increased their
frequency.
Answer:
D
Explanation:
The antibiotics are targeting bacteria that are not resistant to the antibiotic and any that are will survive treatment. Bacteria can reproduce and share their resistance quickly.
Cytoplasm is found...
A only in prokaryotic cells.
B in all cells.
C. in plant cells only.
Answer:
C i think
Explanation:
sorry if its wrong :(
Explain how buming fossil fuels can lead to a lower ocean pH
Answer:
By letting the fossil die in the sea in let sit for a long time
Explanation:
PLEASE HELP ILL GIVE BRAINLEST (PROBABLY MORE THEN ONE ANSWER)
Answer:
carbohydrate and lipid
Why were garden peas a good choice for a study of heredity?
Answer:
pea plants because they were easy to grow, could be bred rapidly, and several observable characteristics, like petal color and pea color.
Explanation:
NEED THIS ASAP, ITS A FINAL!!! WILL MARK BRAINLIEST IF CORRECT.
The following chart shows the amount of four different minerals found in lake water and in the cytoplasm of algae:
Which mineral(s) did the algae uptake through active transport?
Calcium and sodium
Nitrogen and potassium
Nitrogen only
Potassium and sodium
Answer:
Calcium and sodium
Explanation:
Answer: Calcium and sodium
Explanation:Here is the chart
Which option identifies the degree needed to achieve the goal in the following scenario?
Nathan is interested in designing strength and conditioning exercise equipment for an athletics company.
master’s degree in biomechanics
certification in strength and conditioning
PhD in biomechanics
bachelor’s degree in kinesiology
Answer:
Actually, the answer is master’s degree in biomechanics.
Explanation:
I took the stem test on edgenuiity and got it right.
What would cause a change in the phenotype of an offspring?
Answer:
In most sexually reproducing organisms, each individual has two alleles for each gene (one from each parent). This pair of alleles is called a genotype and determines the organism's appearance, or phenotype.
Explanation:
Why is the decomposing web important
FIRST GETS BRAINLIEST so hurry
Answer:
Your answser should be C
Explanation:
Answer:
c
Explanation:
Please guys answers these questions! If you answer I’ll mark you brainliest. Thank you
1. digestive organs accesory organs
the organs that are directly involved the organs which helps the
in digestion like stomach, small intestine, digestive organs by thier
large intestine etc scretions or by other means like
liver ,pancreas etc
2. food bolts chyme
DIFFERENCES
the substance which The semi hard the soup like substance
is eaten by a person. substance
it is semi digested in it leaves oral cavity it leaves stomach and went to
oral cavity. and move to stomach small intestine
SIMILARITIES
They all are nutrients containing meterials which are to be digested. they all contain carbohydrates,protiens ,fats and vitamins (somehow if the food is taken from plant source) and they all are about to be absorbed.
3.DIGESTIVE SYSTEM:
the process in which food substance is broken into pieces and is converted into the simpler substances which can be assimilate by body cells. Different glands scretes digestive juices which digest fats,protiens ,carbohydrates etc e.g gastrin,bile,pancreatic juice and intestinal juice. and at the end all the product remain is excreted out after assimilation.
ORGANS INVOLVED: oral cavity,oesophagous,stomach small intestine ,large intestine.
4. salivary glands are damaged:
if salivary glands are destroyed or damaged then no saliva will produce to protect the walls of gut and the gut walls will be damaged by the acidic or basic juices of gut which will causes severe ulcer of oesophagous, stomach or intestinal.
5.CONSTIPATION:
when too much water is absorbed by the walls of large intestine so the end product which is to be excreted will become so hard that it is dificult to excrete 0it out of body.
CAUSES: it may be caused by hormonal disturbance ,water deficiency and may be by silliness of a person that he use to be silly to go to the bathroom at time.
6. INGESTION: Taking of food from the outside of the body from different means which contain nutrients essential for body growth.
DIGESTION: Breakdown of food into simpler substance which can be easily taken by body cells .
ABSORPTION:Large intestine and smaal intestine absorbs the certain amount of nutrients and water from the digested substance to fullfil the body deficiencies. These nutrients are then assimilated into the body.
EXCETION:the substance which remain after absorption is excreted out of the body from exterior opening called anus is called excretion.
1.
All living things are composed of cells.
Which action is not accomplished by repeated cell
division?
A.
a plant developing new leaves
B.
a broken bone growing back together
C.
a plant using sunlight to make its own foods
food
D.
an eight-pound baby growing into a 100-pound
teenager

Answer:
C
Explanation:
Everything else has to do with growth but C is talking about food/energy.
A plant using sunlight to make its own foods is accomplished by repeated cell division.
What do you mean by cell division?Cell division is the process by which a parent cell divides into two daughter cells. Cell division usually occurs as part of a larger cell cycle in which the cell grows and replicates its chromosome before dividing.
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.
In eukaryotic cells, or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase.
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