Answer:
where's the following?
23. Which of the following species is most likely to become extinct?
A. a species that is well adapted to its environment
B. a species that is losing its habitat due to deforestation
C. a species that has a great amount of genetic variation
D. a species that has a decreasing number of predators
Answer:
B. Is the answer. They are losing their habitat and therefore will be more likely to go extinct
Answer:
B). a species that is losing its habitat due to deforestation
hope it helps
organisms are structured and supported by....
Answer:
cells
Explanation:
Answer:
cells
Explanation:
We get energy from the food we eat. The energy in the food first comes from?
Answer:
The energy the food first comes from is the sun.
Explanation:
It is the process of photosynthesis that locks the Sun's energy into simple carbohydrates like glucose.
Because cilia cannot function properly, smokers have a frequent headache.
True
Answer:
Explanation:
The cilia sweep out mucus and dirt so your lungs stay clear. Smoking temporarily paralyzes and even kills cilia. This makes you more at risk for infection. Smokers get more colds and respiratory infections than non-smokers.
Because cilia cannot function properly, smokers having a frequent headache is a true statement.
What is Cilia?These are tiny hair projections which are found in the airway of the body and helps to prevent dust or foreign matter from getting to the lungs.
Smoking destroys it and leads to insufficient oxygen inhaled by the body as a result of presence of contaminants which may therefore lead to headache.
Read more about Cilia here https://brainly.com/question/23275700
#SPJ2
Intervals of geologic time are bound by important events, like mass extinctions or the appearance of animals with hard parts. The first single-celled organisms appeared about 3.5 billion years ago. Many sea animals first show up in the Cambrian period of the Paleozoic era. That was about 545 million years. It is sometimes referred to as the Cambrian explosion because it happened relatively quickly. It lasted just over 50 million years. The next period, , the Ordovician, ended with mass extinctions of 60% of all marine invertebrates. Dinosaurs wouldn't appear for over 200 million years, during the Jurassic period in the Mesozoic era. Based on the passage, in geology, 50 million years is A an era. B not considered a very long time. C too short for any significant events to occur. D about how long dinosaurs were on the planet.
Based on the passage above, in geology, 50 million years is not considered a very long time (Option B).
What is geological time?Geological time is an expression used to describe processes that occurred on a high time scale.
Geological processes such as the emergence of species (speciation) can take millions of years.The processes on a geological time scale are difficult to commensurate from a human thinking perspective.In conclusion, based on the passage above, in geology, 50 million years is not considered a very long time (Option B).
Learn more in:
https://brainly.com/question/15818328
Plz help ASAP !!!!!!!!!
Answer:
Ohm = resistance
Ampere = current
Mark Brainliest!
Explanation:
What contribution to energy do carbohydrates make?
Answer:
Carbohydrates are the nutrients most frequently used as an energy source (containing 4kcal per gram), as they are fast-acting and turn into energy as soon as they are ingested. This energy powers the brain and body. The energy that powers the brain and body is generated when carbohydrates are broken down.
Explanation:
hope its help
thank you
Give an example of a phenotype for your favorite animal: ___________.
Answer:
Dogs
Explanation:
Hope this will help
can anyone help for question 6?
answer: CTA GGT
it's obvious.
hope it helps.
XD❤️
think before answering
A parent with the blood type A (genotype AO) and a parent with blood type B (genotype BO) have children with blood types A, B, and AB. What type of inheritance pattern is shown by the child with type AB blood and why?
Answer:
Co-dominance because he expresses both of the alleles simultaneously
Explanation:
The ABO blood group system is used by humans. This blood group type is controlled by multiple alleles. Alleles A and B are both dominant over allele O but are co-dominant. Co-dominance is a type of inheritance pattern in which two alleles of a gene both express themselves i.e. neither is recessive.
This is the case of this family whose parents have a genotype of AO (blood type A) and BO (blood type B) respectively. The children have blood types A, B, and AB. However, the child with genotype AB possesses both the A and B allele, which are both expressed in his blood group (phenotype), hence, it can be said that the child is exhibiting CO-DOMINANCE for the blood group trait.
The inheritance pattern is co-dominance.
The genotype of an individual is the sum total of the genes that the individual has received from parents. When two genes are expressed at the same time, the inheritance pattern is called co-dominance.
Hence, the child that has a blood type AB has both A and B expressed and this is co-dominance.
Learn more about co-dominance: https://brainly.com/question/9881046
What is the gradient (change in elevation/length of river) of the Naugatuck River?
Answer:
As the river flows south from Torrington to Derby it drops approximately 540 feet in elevation, resulting in a relatively steep gradient of approximately 13 feet per mile. Consequently, the river is a predominantly rapidly flowing river for most of its length, characterized occasionally by rapids.
3. Design and describe an experiment using celery stalks to demonstrate how certain conditions will cause a loss or gain of turgor pressure. In order to follow the scientific method, your description should start with an observation and be followed by (i) a testable hypothesis, (ii) an outline of the experiment that will test the hypothesis, (iii) a description of the type of data that will be collected, and (iv) a possible conclusion that could likely be made after completing the experiment
Answer:
Explanation:
A way you can use celery stalks to demonstrate the conditions with loss or gain of turgor pressure, is by setting us the same situation with water. I. You could possibly make a chart with how the celery could change. II. Testing the different out comes of the celery changing and what it has done and if it matches the hypothesis. III. The type of data you could conduct would be is seeing the height, length, and width. As wellas trying to see how much celery would soak up. IV. A possible conclusion of that experiment would be that the celery stalks would all expand expect for the one not in any water and it all would possibly start to grow into more than one celery and sprout. H2OH2O
Turgor pressure is the pressure due to fluid in a cell, that provides a force making the plasma membrane to push upon the cell wall
The responses and reasons for the experiment demonstrating the conditions by which turgor pressure is lost or gained are as follows:
Observation: Cut celery placed in water are fresher and are not as wilted than cut celery placed on a table without water, or placed in a salt solution
(i) A testable hypothesis is given as follows;
Hypothesis: The turgor pressure is gained by increasing the hypotonicity of the water that the celery stalks is placed into
(ii) An outline of an experiment to test the hypothesis is presented as follows;
Procure three celery ticks and three beakers that can contain a stick eachPlace 100 mL fresh water from the tap into one of the beaker, 100 mL of 5% salt solution into the second and 100 mL 10% salt solution into the third beaker, and label the beakersMeasure and record the mass and sizes of celery stalk lengths cut to 5 cm length and identically sized, after which they are placed one each into each beaker Take a picture of the sticks in the containers that shows the sizes of the sticks, and also write a note describing each stick in the lab notebookPlace the containers into the fridge overnightMeasure and record the parameters of the sticks removed from the fridge and take a picture of the sticks with a ruler by the side of the container to show the size of the sticksRecord the observation(iii) A description of the type of data that will be collected include, the width, mass and length of each celery
(iv) A possible conclusion that could likely be made after completing the experiment is that the gain in turgor pressure is directly related to the hypotonicity of the solution the stick of celery stalk is placed
Learn more about plant turgor pressure here:
https://brainly.com/question/18246497
Where in the world is HIV most prevalent?
Answer:
Explanation:
South Africa
Answer:
South Africa has the most people living with HIV
Explanation:
about 7.5 million
What is the process of water moving from an area of low solute
concentration to an area of high solute concentration?
Answer:
Osmosis
Explanation:
Answer:
it is osmosis
Explanation:
Osmosis is the process whereby water move from a region of lower concentration to a region of higher concentration across a semi-permeable membrane.
if 10% of the nucleotides in a DNA molecule contain guanine, what percentage of the nucleotides contain each of the other three bases
Cytosine-
Adenine-
Thymine-
Answer:
Cytosine: 10%
Adenine: 40%
Thymine: 40%
Explanation:
So we know that Cytosine and Guanine are complementary and Adenine and Thymine are complementary.
Cytosine would be 10%
What's left is 80%, which would be divided by two because adenine and thymine have the same percents.
Adenine: 40%
Thymine: 40%
someone please help me
What materials do motor neurons need to survive and how do they get those materials?
Answer:
Neurons are made up of three major parts: a cell body, or soma, which contains the nucleus of the cell and keeps the cell alive; a branching tree like fiber known as the dendrite, which collects information from other cells and sends the information to the soma; and a long, segmented fiber known as the axon, which transmits information away from the cell body toward other neurons or to the muscles and glands.
I’m crying in the bathroom I need your help please
1. How do all animais move?
2. List three reasons for animals to move.
3. Why do you think it is useful for animals that live in water to have
streamlined bodies?
4. You see an arthropod with strong, muscular hind legs. How might
this animal move on land? Explain your reasoning.
5. What type of flight is enabled by large wings with long, broad
feathers?
Answer:
Hop, skip, jump, run, slither, slide, glide, fly, swim, burrow, climb, soar, hover, creep, crawl, wiggle – the list of ways animals move is endless! Animals of all shapes and sizes move around in many different ways using different body parts to help them – legs, fins, flippers, wings, tails and so on.
Explanation:
Animals move for a variety of reasons, such as to find food, a mate, a suitable microhabitat, or to escape predators
In general, how do many human activities influence the carbon cycle?
Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.
Explanation:
Carbon moves from the atmosphere to plants. ...
Carbon moves from plants to animals. ...
Carbon moves from plants and animals to soils. ...
Carbon moves from living things to the atmosphere. ...
Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...
Carbon moves from the atmosphere to the oceans.
why do we need to eat
When will a recessive trait be seen
in an organism?
A. when at least one recessive allele is present
B. when there is no recessive allele present
C. when there is no dominant allele present
Answer:
c
Explanation:
In some types of cattle, brown hair and white hair share dominance. When two cows
reproduce, they can have offspring that have both brown and white hair.
B-brown hair
B' – white
a researcher crossed the F1 generation of a red snapdragon plant and white snapdragon plant. according to the information provided, what is the phenotype percentage of their offspring F2?
Red 50% & Pink 50%
Red 100%
White 100%
Pink100%
Answer:
I think the answer is
Explanation:
I think the answer is pink 100%
I am not confirm.
what is theory of to observe the neucles in cheek cells
Answer: The theory of cheek cells is used for the identification of cheek cells.
Explanation:
The cells of cheek do not have cell wall. They have a cell membrane which allows on certain molecules to pass through it. The nucleus is located centrally in the cheek cells and it stores the DNA. It can be stained with the help of the methylene blue reagent. It appears blue in color which can be observed under the microscope. The cheek cells can be isolated from the buccal cavity by using cotton buds and cotton swabs can help in isolating the cells.
1. Which layer of the atmosphere has:
a. the most water vapor?
b. the lowest pressure?
2. What remains the same in different layers of the atmosphere?
3. Scientists have divided the earth's atmosphere into different layers. What property of the atmosphere do you think these divisions are based on?
4. You collected data on four layers of the atmosphere. The atmos- phere merges into outer space in an extremely thin upper layer known as the exosphere. Which of the five layers of the atmos- phere do people live in?
Each body cell of an octopus contains thirty-two chromosomes. The number of chromosomes in an octopus egg will be
Answer:
16 chromosomes because if a body cell (diploid) has 32 chromosomes, you need to divide it by 2 to get your egg cell
Explanation:
Which statement best describes the cell membrane?
Grupo de escolhas da pergunta
A) a two layer barrier of phospholipids, whole hydrophobic heads face toward the water, while their hydrophilic tails face away from the water
B) a two layer barrier of phospholipids, whose hydrophobic heads face away from water, while their hydrophilic heads face towards the water
C) a two layer barrier of phospholipids, whose hydrophilic heads face away from water, while their hydrophobic heads face towards the water
D) a two layer barrier of phospholipids, whole hydrophilic heads face toward the water, while their hydrophobic tails face away from the water
ASAP
Answer:
D
Explanation:
Which of the following best explains the comparative anatomy of bird wings and fly wings?
a). homologous structures
b). analogous structures
c). vestigial structured
d). embriological structures
- Which of the following would lead to a cooling of our climate?
-An increase of carbon -dioxide in the atmosphere
-Melting polar ice caps
-Warming of the oceans
-An increase of plant life
Answer:
it would be an increase of plant life
Explanation:
the reason for this is that plants take up the carbon dioxide and give us fresh o2
Where do mitosis and meiosis take place?
In a parallel circuit, there is only one path for current to take. Please select the best answer from the choices provided T F
Answer:
False.
Explanation:
A parallel circuit has more than one path for current flow. The number of current paths is determined by the number of load resistors connected in parallel. Total current in a parallel circuit is the sum of the individual branch currents.