If they aren't hermaphrodites, can they still be male and female at the same time?
What is one similarity between the lungs and capillaries?
A: They are both activated by inhalation.
B: They are both involved in gas exchanges.
C: They are both part of the circulatory system.
D: They are both regulated by the heart.
One similarity between the lungs and capillaries is that they are both involved in gas exchanges.
What do you mean by Capillaries?Capillaries may be defined as a network of blood vessels that supplies blood as well as oxygen throughout the body.
Both the lungs and the capillaries are actively involved in the exchange of gases in and out of the body. The capillaries are connected to the walls of the alveoli where oxygen and carbon dioxide diffuse. Carbon dioxide is exhaled outside by the lungs, while the oxygen is attached to the RBCs and travels to the heart.
Therefore, one similarity between the lungs and capillaries is that they are both involved in gas exchanges.
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Add right is a photograph of a multicellular plant called a Primrose. List three conclusions you can make about the primrose as a living thing.
Based on the composition of phloem tissue, it is most likely used by the plant for
Hey there!
The correct answer is that it is used for the transportation of the food and nutrients for the plant.
Hope this helped and have a great day (:
Answer:
Phloem is used by the plant to transport organic substances produced by photosynthesis.
Explanation:
Phloem is a conducting tissue present in all plants and is formed by sieved elements, parenchymal cells, fibers and sclereids. The phloem composition helps it to fulfill its primary function, which is to transport the elements of the elaborated sap to all parts of the plant. The elaborated sap is formed by the organic compounds that are created during photosynthesis and that are essential for the development and growth of the plant.
Dr. Jonas Salk is associated with a vaccine for _____.
rabies
polio
cholera
smallpox
Which abiotic factor would likely have the greatest effect on an estuary
Which phrase best describe a gene
In humans, the process of meiosis and the fertilization of the egg and the sperm ensures that the same offspring will never be created twice. Explain the three events during meiosis/fertilization that make this possible
In humans, the uniqueness of offspring is ensured by crossing-over, independent assortment during meiosis, and random fertilization.
In humans, meiosis and fertilization ensure the production of genetically unique offspring through three main mechanisms.
The first event is crossing-over during prophase I of meiosis, where homologous chromosomes exchange genetic material, creating new combinations of alleles. The second event is independent assortment, the random separation of parental chromosomes during metaphase I, which leads to a diverse set of potential gametes. The third event is the random fertilization of an egg by a sperm cell, which combines two sets of chromosomes to restore the diploid state, with the chance of creating a zygote with any combination of chromosomes from the parents, adding to the genetic diversity.The result of these three processes ensures that any two offspring will almost certainly have a different genetic makeup, even if they come from the same set of parents. Thus, meiosis followed by fertilization increases genetic variation and is fundamental to the concept of sexual reproduction in eukaryotes, which includes humans.
If the producer contains 6000 of energy how much energy will the secondary consumer contain
Secondary consumers would have roughly 60 units of energy if the producer contains 6000 units, based on the approximate 10% energy transfer between trophic levels in an ecosystem.
The question concerns the amount of energy contained by a secondary consumer if the primary producer has 6000 units of energy. In ecology, energy transfer between the trophic levels is typically about 10%. Using studies by Howard T. Odum on the Silver Springs ecosystem, we know that the primary producers generated 20,819 kcal/m²/yr. The primary consumers, in turn, generated 3368 kcal/m²/yr, secondary consumers generated 383 kcal/m2/yr, and tertiary consumers only 21 kcal/m²/yr. By applying the 10% rule, we can estimate that if primary producers have 6000 units of energy, the primary consumers would have approximately 600 units of energy, and the secondary consumers would have roughly 60 units, considering each level consumes about 90% and only passes on 10% to the next level.
What does it mean to say that there is a "proofreading" function in DNA replication?
When we refer to DNA replication as having a "proofreading" function, we imply that the DNA polymerase will replace any excess incorrect nucleotides with the correct ones, ensuring that there are as few errors as possible.
Thus, In genetics, the word "proofreading" is used to describe the error-correcting mechanisms, first postulated by John Hopfield and Jacques Ninio, involved in DNA replication.
The immune system specificity, enzyme-substrate recognition, among many other processes that need for increased specificity.
All three DNA polymerases in bacteria—types I, II, and III—are capable of editing DNA by employing 3'–5' exonuclease activity. DNA polymerase changes its orientation by one base pair of DNA and excises the mismatched base when it detects an erroneous base pair.
Thus, When we refer to DNA replication as having a "proofreading" function, we imply that the DNA polymerase will replace any excess incorrect nucleotides with the correct ones, ensuring that there are as few errors as possible.
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Scientists are using DNA fingerprinting to help identify the bodies of those killed in the 9/11 tragedy. Most on-site evidence is in the form of bones or teeth. Yet the evidence supplied by the victims' families may include hair or tooth brushes.
How are scientists able to compare DNA from bones or teeth to that found in hairs on a hairbrush?
A) They cannot and this is making body identification very difficult.
B) Each sample provides an exact karyotype for genetic identification.
C) DNA is the same in every cell of the body and does not change over time. D) The DNA must all come from the hair in order to be accurate.
C) DNA is the same in every cell of the body and does not change over time.
Judy kept 250 grams of juice in the freezer. What is most likely the mass of the frozen juice formed and why?
250 g, mass remains same during physical change of freezing
500 g, mass of ice is twice the mass of juice
250 g, mass is conserved when matter is destroyed to form ice
200 g, mass of frozen liquid is less than mass of the original liquid
Answer: Option A
Explanation:
The juice of 250 grams will be the same in case of ice this is because the mass of the liquid will not change when there is a physical change in the state of matter.
The change in state of matter does not changes the mass of the substance. IF 250 grams of water is kept inside the freezer to get converted into ice, then the 250 grams of liquid will be 250 grams of ice.
hence, option A is correct.
What type of sediment forms from minerals that crystallize from seawater
The hydrogenous sediment form is the minerals that crystallize from seawater. Hydrogenous sediment forms because of the sea water or ion exchange among ocean water and sediments. In this type of sediment arises from dissolved material in the water. These are often found in the form of nodules containing manganese and iron oxides.
Answer:
hydrogenous sediment
Explanation:
What type of reproduction shuffles the genes
Which of the following is a simple sugar? A. Glucose B. Maltose C. Lactose D. Sucrose
A simple sugar, or monosaccharide, from the provided options is Glucose. Maltose, Lactose, and Sucrose are disaccharides, composed of two monosaccharides each.
Explanation:In identifying which of these options is a simple sugar, we need to make a distinction between monosaccharides and disaccharides. Monosaccharides are simple sugars, composed of a single molecule. Conversely, disaccharides are composed of two monosaccharides bonded together. Glucose (Option A) is a monosaccharide, also known as a simple sugar. Maltose (Option B), Lactose (Option C), and Sucrose (Option D), are all disaccharides, which means they are composed of two monosaccharides. Maltose originates from two glucose molecules, lactose is derived from glucose and galactose, and sucrose results from the combination of glucose and fructose.
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Which of the following describes an organism?
A group of cells working together
A group of tissues working together
A group of organ systems working together
A group of atoms working together
Which of the following body parts has smooth muscles?
Biceps
Heart
Triceps
Stomach
The stomach has smooth muscles (involuntary muscles). Therefore, option D is correct.
What are smooth muscles?Smooth muscles are also known as involuntary muscles. They are a type of muscle tissue that is found in the walls of organs, blood vessels, and other internal structures in the body.
They are called "smooth" because they lack the striations or bands that are present in skeletal and cardiac muscle tissue.
Unlike skeletal muscle, which is under voluntary control, smooth muscle is controlled involuntarily by the autonomic nervous system. This means that we cannot consciously control the contractions of smooth muscle, which happen automatically in response to various stimuli. They are responsible for many involuntary movements in the body. Therefore, option D is correct.
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Climate changes cause a drought. There is no food to collect. To survive, the animals must become predators, catch and kill prey for food. Which group(s) would you expect to survive and reproduce, passing on the traits to future offspring?
The answer is A. Group A
What is a chromosome? ( In simple terms please)
Which of the following planets has the weakest surface gravity?
A.Neptune
B.Mercury
C.Jupiter
D.Earth
The suns light takes 180 seconds to reach the planet Mercury. Which of the following is the correct step to find the distance, in miles, of mercury from the sun? The picture are my answers
Answer:
Multiply the speed of light through space in miles per second by 180
view pic for proof
what are the 3 main types of plant tissue
Color blindness ua sex-linked trait. If we could see the pedigree chart for several more generations of the family illustrated here, we would expect
Answer:
More males to be colorblind
Explanation:
I took the test
Seaweed and bacteria have different cell structures How do the cellular structures of seaweed differ from that of bacteria?
A. Bacteria are made up of specialized cells.
B. Bacteria cells are larger than seaweed cells.
C. Seaweed have systems, while bacteria do not.
D. Seaweed are multicellular, while bacteria are not.
The correct answer is option D.Seaweed are multicellular and belong to the domain Eukarya, whereas bacteria are unicellular and belong to the domain Bacteria. Seaweed have eukaryotic cells with a nucleus, while bacteria have prokaryotic cells without a nucleus. Thus, the main difference is that seaweed are multicellular, while bacteria are not.
Seaweed and bacteria have distinctly different cellular structures due to their classification into different domains of life. Seaweed, which are large, multicellular algae, belong to the domain Eukarya, meaning they are composed of eukaryotic cells. These cells have a nucleus and membrane-bound organelles.
On the other hand, bacteria belong to the domain Bacteria and are made up of prokaryotic cells, which lack a nucleus and membrane-bound organelles. Additionally, bacteria are typically much smaller in size compared to the larger, multicellular seaweed.
Therefore, the correct answer to the question is: D. Seaweed are multicellular, while bacteria are not.
The division of the nucleus during the eukaryotic cell cycle is
The division of the nucleus during the eukaryotic cell cycle is referred to as mitosis, which involves several phases including prophase, metaphase, anaphase, and telophase, culminating in two genetically identical daughter cells.
Explanation:The Division of the Nucleus During the Eukaryotic Cell CycleThe division of the nucleus during the eukaryotic cell cycle is a complex process called mitosis. Mitosis is a multi-phase process that results in the division of one nucleus into two genetically identical nuclei. The eukaryotic cell cycle consists of interphase and the mitotic phase. Interphase itself is divided into three phases: G1, S, and G2. During these stages, the cell grows, duplicates its DNA, and prepares for cell division.
The mitotic phase includes both mitosis and cytokinesis. Under mitosis, there are four phases known as prophase, metaphase, anaphase, and telophase. This is when the actual division of the nucleus occurs. The chromatids separate and are evenly divided between the two new daughter cells. Following mitosis, cytokinesis completes the cell division process by dividing the cytoplasm, resulting in two separate cells.
After a volcanic eruption has covered an area with lava, which of the following is the most likely order of succession in the re-population of the area? * lichens → grasses → shrubs → trees mosses → grasses → lichens → trees grasses → trees → mosses → lichens shrubs → grasses → trees → lichens
After a volcanic eruption, the order of succession in the re-population of the area is following:
Lichens → grasses → shrubs → trees.
The correct option is A.
Ecological successionThe process of change in the species structure of an ecological community over time is known as ecological succession.Lichens are considered a self-sustained miniature ecosystem of themselves.They can grow themselves in any condition.After lichen, grasses can be grown and, then shrubs and trees.Thus, the correct option is (A).
Lichens → grasses → shrubs → trees.
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Which BEST explains why people see bananas as yellow?
People can see bananas as yellow because the yellow color is reflected on the surface of the bananas.
What is the reflection of light?It is referred to as light reflection when a light ray hits a polished, smooth surface and bounces back. The incident light rays hit the surface and are reflected off of it. The beam that returns is referred to as the reflected ray.
Reflected light from a mirror or a still body of water is a common example of reflection, but reflection also impacts other kinds of waves besides light waves. Other waves that can reflect include seismic waves, sound waves, water waves, and particle waves.
All colors are absorbed by the surface of the banana, and only the yellow color is reflected. Therefore, people can see bananas as yellow.
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What is a basic characteristic of all living cells
The largest level of organization in living things is a(n) (2 points)
organism
organ
tissue
cell
What is the difference between global effects and local effects?
PLZ HELP I WILL GIVE 99 POINTS!!!!!!!!!!!!!!The diagram below shows the branching tree diagram for humans. The text box below it shows the set of derived shared characteristics for the branching tree. A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right, Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs. Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. From the text box, select a shared derived characteristic that humans and rats have. Explain why you think humans and rats share this characteristic.
The incissors of a humand and a rat at a really much bigger than them of another animal. Thats why they can share the same diet.
According to the branching tree model, Jaws would most likely be located between points 1 and 2. As a result, the perch, frog, pigeon, and other species would not have developed until after the common ancestor and before the derived shared property of jaws.
How did the body of our ancestors' teeth develop throughout time?A crucial stage in the evolution of vertebrates, including humans, was the evolution of jaws in the bodies of our ancestors. Gnathostomes, the earliest jawed vertebrates, descended from jawless fish and first showed up in the fossil record about 420 million years ago.
Early jawed vertebrates were able to diversify their meals and widen their range of habitats thanks to the evolution of new feeding techniques like biting and chewing. This development also facilitated the development of more intricate teeth, which further enhanced their capacity to consume a range of food sources.
Thus, according to the branching tree model, Jaws would most likely be located between points 1 and 2.
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Your question is incomplete, most probably the complete question is:
The diagram below shows the branching tree diagram for humans. The text box below it shows the set of derived shared characteristics for the branching tree.
A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right, Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram.