Answer:
guard cells
Explanation:
they control the opening and closing of the stomata
Thoroughly analyze the alguments made in the article regarding potential
evolutionary links between the australopithecines and the ancestors of
the genus Homo. What evidence is provided by the author to conclude
that the later paranthropoids were not direct ancestors of modern
humans? Is this evidence sufficient to support his claim? Why or why not?
Extinct species of hominins known as Australopithecus may have been the ancestors of modern humans (Homo sapiens). The first fossils, which were found in South Africa, are referred to as Australopithecus.
After almost a century of findings, the first species to be called Australopithecus was given that name in 1925, and today, paleoanthropologists may access a sizable collection of fossilized hominin remains from Africa. High-quality fossils of early human species are still very hard to find despite decades of research, making it even more important for scientists to continue finding them in order to better understand the biology and variety of Australopithecus. The Great Rift Valley in eastern Africa, the limestone caves of South Africa, the sedimentary deposits of the Chad Basin, and the Djurab Desert are the only places on earth where geological circumstances are favorable for the preservation and excavation of hominid fossils (an arid region in central Chad).Learn more about the Australopithecus with the help of the given link:
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For which of the following reasons does a 3-column organizer help you retain
information from a text?
A. It gives you a category
for placing extra information.
O B. It provides you with a
study guide for vocabulary.
O C. It visually organizes the notes you take while reading.
O D. It keeps you focused on your purpose for reading.
Can someone help
hello m'y name is ariel going to scool
Answer:
C. It visually organizes the notes you take while reading.
Explanation:
When two alleles are dominant and both are expressed in an individual, what kind of non-Mendelian inheritance is that?
Answer:
Codominance
Explanation:
This case happens when both alleles are dominant then they will be equally expressed in phenotype
I can give you an example to understand this topic such as blood type: in the type AB both A and B are codominant = 2 dominant alleles are expressed together
Which best describes the movement through the nephron?
A. Blood is passed into the nephron and removed through the urethra.
B. All materials that exit the blood into the nephron are removed in the urine.
C. Some of the materials that exit the blood can be returned to the blood.
D. High quantities of sugars and water are excreted in the urine.
Some of the materials that exit the blood can be returned to the blood is the best description of the movement through the nephron. Therefore, the correct statement is option C.
What is the nephron?The nephron is the functional unit of the kidney that is responsible for filtration of blood, regulation of the balance of fluids and electrolytes, and removing waste products from the body.
It is filtered by the glomerulus as blood flows through the nephron, and the filtrate then passes through the renal tubules, where substances such as glucose are reabsorbed back into the bloodstream.
The process is important for maintaining the homeostasis of the body, such as regulating blood pressure and the remaining waste products are excreted out of the body in the form of urine through the ureters and urethra.
Therefore, the materials that exit the blood can be returned to the blood is the best description of the movement through the nephron.
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Domestic cats transfer their genetic information to their offspring by meiosis. If a kitten has 38 chromosomes, how many chromosomes does the kitten inherit from its mother?
Answer:
17
every organis contains half of its parents genetic makeup.
Eg human have 46 chromosomes, getting 23 from each parent.
If you are to conduct a DNA analysis using a blood sample which of the blood components will you use
1.) Red Blood Cells
2.) White Blood Cells
3.) Plasma
4.) Platelets
If you are to conduct a DNA analysis using a blood sample which of the blood components will you use
Options :-1.) Red Blood Cells
2.) White Blood Cells
3.) Plasma
4.) Platelets
Answer:-Option 2.) White Blood Cells
Explanation:- Red Blood Cell(RBC) , Plasma , Platelets lack DNA White Blood Cell (WBC ) only have DNA RBC lack nucleus to make space for O2 as the work is to carry O2 with help of hemoglobin Platelets are the cell fragments of the large cells they help in clotting so too lack nucleusPlasma is the fluid part of the blood. so it contain water in its most part and too lack DNA bez plasma don't contain any cells WBC are the only cells which have well defined nucleus with DNA in above mentioned optionsWhat is the problem in this article? What solution does the article propose?(Site 1)
The problem being talked about in the article is the issue of sea turtle bycatch which happens when nets are used to fish.
The solution proposed by the article is that of Turtle Excluder Devices (TED) which allow for sea turtles to escape through flap-like openings and metal bars.
What does the article talk about?The article talks about how the issue of sea turtle bycatch is affecting sea turtle conservation efforts because sea turtles get caught in nets that were laid for shrimp and other fish.
The solution being proferred is a TED which when added to a net, provides a flap-like opening such as metal bars that allow for sea turtles to escape the net.
Find out more on sea turtle conservation at https://brainly.com/question/26576608.
Answer:
Explanation:
The problem being talked about in the article is the issue of sea turtle bycatch which happens when nets are used to fish.
The solution proposed by the article is that of Turtle Excluder Devices (TED) which allow for sea turtles to escape through flap-like openings and metal bars.
A population of cells carrying a desired plasmid is called a.
Answer:
it is called a clone
Explanation:
DNA used to transmit a gene from one organism to another there fore it being a clone
Answer:
Clone
Explanation:
A population of cells carrying a desired plasmid is called a Clone. Self-replicating DNA used to transmit a gene from one organism to another is a Vector
In which system of the human body are the red blood cells and white blood cell found?
Answer:
In the circulatory system
Explanation:
The circulatory system of the body is where all blood cells are found.
the blanks (not words).
A cell has 6 chromosomes during G1. During G2 it has
How many chromatids and
strands of DNA?
Answer:Neuronal cells in G2 phase demonstrate tetraploid (4N) DNA content or, more precisely, possess a nucleus with 46 replicated chromosomes.
Explanation:In the G1 phase, there are 12 chromosomes. In the S-phase of the cell cycle, the amount of DNA gets doubled. There is doubling of the chromatids but the chromosomes number remains same. The number of chromosomes in the G2 phase will be same as 12 chromosomes and the number of chromatids will be 24.
When mitochondria are actively carrying out aerobic respiration
Hi! I believe your answer is the pH of the matrix is greater than the pH of the intermembrane space.
---
Hope this helps, and please correct me if I am wrong
When mitochondria are actively carrying out aerobic respiration that is cellular respiration stages of krebs cycle.
What is Mitochondria?
Mitochondria, organelles specialised to perform cardio breathing, include an internal membrane folded into cristae, which shape separate compartments: the internal membrane area and the matrix.
The Krebs Cycle takes region withinside the matrix. Glycolysis takes place withinside the cytosol of the cell and does now no longer require oxygen, while the Krebs cycle and electron shipping arise withinside the mitochondria and do require oxygen.
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can someone help me out with this? i truly don't understand it :]
Hi! I believe the answer is D. The sun's gravity keeps the earth from floating away (which is what the blue arrow represents). It's being constantly pulled towards the sun, keeping it in orbit (represented by the purple arrow)
I'm not quite sure what the pink arrow is supposed to be
Let me know if you still don't understand :)
Match each example given to the type of scientific concept.
theory
observation
hypothesis
law
The outer layer of the Earth is
divided into plates that move
due to convection currents
under the surface.
arrowBoth
If the amount of daylight
increases plant growth, then
plants will have higher rates
of growth during the summer.
arrowBoth
For every action or force
in nature, there is an equal
and opposite reaction.
arrowBoth
Answer:
Theory
The outer layer of the Earth is divided into plates that move due to convection currents under the surface.Hypothesis
If the amount of daylight increases plant growth, then plants will have higher rates of growth during the summer.Law
For every action or force in nature, there is an equal and opposite reaction.Which term describes the idea that Earth’s landforms change at a constant, steady rate?
How are temperature and carbon dioxide detectors useful in detecting concealed animals?
Answer: answer below ⬇
hope this helps ya out # blueberrysugar
Identify when genetic recombination occurs in meiosis. Enter your answer in the space provided
Genetic recombination occurs during the Prolonged Prophase of Meiosis I.
What is genetic recombination?Genetic recombination occurs during the Prolonged Prophase of Meiosis and it is the process in which deoxyribonucleic acid (DNA) are broken into pieces and this piece recombines to form a new combinations of alleles.
This recombination is what leads to creating genetic diversity.
Therefore, Genetic recombination occurs during the Prolonged Prophase of Meiosis I.
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The genetic recombination occurs in meiosis during the stage of Prophase I.
What do you mean by Genetic recombination?
Genetic recombination may be defined as the conditions when the molecules of the DNA exchange their genetic material with each other.
This process of genetic recombination also known as crossing over, which is responsible for the genetic diversity among individuals.
Genetic recombination occurs when homologous chromosomes are arranged in pairs and interchange the segments of the DNA.
Therefore, genetic recombination occurs in meiosis during the stage of Prophase I.
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explain why camouflage and mimicry can increase an organism’s fitness
Camouflage: Structural adaptation that enables an individual to blend with its surroundings, and that allows an individual to avoid detection by predators. … Camouflage and mimicry are both adaptations because they increase the likelihood of an individual evading predation long enough to reproduce.
Sure hope this helps you! :)
P.S my name is Misty
How do biotechnologists amplify DNA in order to perform genetic testing?
Answer:
A technique used to amplify, or make many copies of, a specific target region of DNA.
Explanation:
How does adh and aldosterone work to incrase blood volume levels
Answer:
Aldosterone causes an increase in salt and water reabsorption into the bloodstream from the kidney thereby increasing the blood volume, restoring salt levels and blood pressure.
Explanation:
When we compare the gravitational force between two objects, which of the following charecteristics of the objects should we consider
A Mass
B Volume
C State of matter
D Shape
How long does it take for an avocado seed to sprout?.
Answer:
It takes about 2 to 6 weeks
Explanation:
Hope this helps:)....if not then sorry for wasting your time and may God bless you:)
Which of the following cannot be used to produce electricity?
a) Biomass
b) Wind
c) Geothrmal
d) Stones
Answer: D 100% I KNOW :D
Explanation:
Answer:
D
Explanation:
stones don't have electricity it is just something found in nature.
Which chromosomes shown below are homologous?
A) B and C
B) D and B
C) C and A
D) A and B
The chromosomes shown below are homologous: C and A, which are in option C as Homologous chromosomes are a pair of chromosomes that carry genes for the same traits, such as eye color or height.
What are homologous chromosomes?Homologous chromosomes are important for the process of meiosis, which is the type of cell division that produces gametes (sex cells) in eukaryotes. During meiosis, homologous chromosomes pair up and exchange genetic material in a process called crossing over. This allows for the mixing and shuffling of genetic information, which increases genetic diversity and contributes to the evolution of populations.
Hence, the chromosomes shown below are homologous in C and A, which are in option C. Homologous chromosomes are a pair of chromosomes that carry genes for the same traits, such as eye color or height.
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What is a result of preventing spindle fibers from forming?.
Plant and animal cells are classified as what type of cell?.
Answer:
eukaryotic
Explanation:
help ill give brainliest aand 5 star
Answer:
7, 20,000,000
Explanation:
There are 7 major plates that make up most of the continents and the Atlantic and Pacific Ocean.
A plate is considered a major plate if it covers an area of more than 20,000,000 km^2
The age of the earth is inferred from the
Group of answer choices
age of the Grand Canyon.
age of dinosaurs.
age of the Canyon Diablo meteorite.
age of the uranium-235
The age of the earth can however be derived from prior knowledge of the age of the Canyon Diablo meteorite.
What is Age?This is defined as the length of time during which a being or thing has existed.
The fragment of the Canyon Diablo meteorite determined the elements that formed as radioactive uranium decayed over billions of years.
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Study the cladogram. Which two organisms have dry skin? gorilla and shark shark and lizard lizard and tiger tiger and lamprey.
Answer:
It's C.
Explanation:
I chose B but I got it wrong. Since lizards obviously have dry skin, the other option with lizards is C. And you can also see in the cladogram that above "dry skin" is lizards and tigers.
So it's C.
The relationship between the two organisms is represented by a cladogram. Here, dry skin is seen in lizard and tiger. Thus, option c is correct.
What is a cladogram?Cladogram is based on the evolutionary relationship between the organisms and how closely they are related to each other. It is expressed in the form of branching diagram.
In cladograms, the morphological features are included. However, advanced cladograms can be constructed using DNA or RNA sequencing.
Cladograms are useful tools for studying evolution as they are represented through simple diagram. The advantage of using cladogram is that it includes only the pure characters. No derived characters are taken into account.
Thus, cladograms are important in determining the evolutionary relations amongst the taxonomic groups.
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The panting responses observed in overheated birds and mammals dissipate excess heat by ________.
Answer:
Evaporation
Explanation:
The panting responses observed in overheated birds and mammals dissipate excess heat by evaporation
How does the Hardy-Weinberg equation work? With only the information q2=0.0036, how do I find the other numbers? I would greatly appreciate it if someone could help explain this to me, I have been stuck on this for a while. Thank you :))
Answer:
We can find the value of p and q with the following 2 formula.
p + q = 1 and p2 + 2pq + q2 = 1
Explanation:
Here,
q2=0.0036
So, q = [tex]\sqrt{0.0036}[/tex] = 0.06
Using formula, p + q = 1
p = 1 - q
p = 1 - 0.06
p = 0.94
So, based on the value of p and q you can find other required solutions.