Answer:
Chlorophyll's job is to obsorb sunlight into the plant to be able to use the process of photosynthesis! Answer is C
If a somatic cell replicated via mitosis every 3 days, how many somatic cells would you have in 30 days?
Answer:10
Explanation:
During cell growth, the volume of the cell increases at a faster rate than the surface area.
A
True
B
False
Answer:
True!
Explanation:
Hope this helps!
Answer:
True
Explanation:
Which feature is shared between adherens junctions and desmosomes?a. Both contain cadherinsb. Both connect the intermediate filaments of neighboring cellsc. Both connect the actin cytoskeleton of neighboring cellsd. Both promote contraction of a cell layere. Both provide physical strength to a cell layer
Both contain cadherins,Adherens junctions and desmosomes both contain cadherins.
which are proteins that help cells stick together and provide physical strength to a cell layer.In animal tissues, desmosomes are a sort of anchoring junction that joins nearby cells. Anchoring junctions, which resemble little buttons and are present all over cells, connect nearby cells. Desmosomes have intermediate filaments in the cells below that assist anchor the junction, whereas microfilaments anchor the adherens junction, the other type of anchoring junction. The calcium-dependent adhesion after which cadherins are called. Many repetitions of the same protein chain make up the external domain of a cadherin molecule, which is the portion that is on the outside of a cell. There is a place to bind calcium in each repetition.
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complete question:Which feature is shared between adherens junctions and desmosomes?
a.Both contain cadherins
b. Both connect the intermediate filaments of neighboring cells
c. Both connect the actin cytoskeleton of neighboring cells
d. Both promote contraction of a cell layer
e. Both provide physical strength to a cell layer
1) What is the process of making mRNA from DNA called? 2) What is the process of making a protein from mRNA called?
Answer:
1. transcription
2. translation
Can u answer the quest
Answer:
but I don't see a quest in this question
what do ptarmigans, siberian hamsters, collared lemmings and peary caribou have in common?
Ptarmigans, Siberian hamsters, collared lemmings, and Peary caribou have the common characteristic of being adapted to cold environments or exhibiting cold-weather adaptations.
These adaptations allow them to survive and thrive in harsh Arctic or subarctic climates. Some specific adaptations shared by these animals include:
Seasonal coat color change: These animals exhibit a phenomenon known as seasonal camouflage or seasonal coat color change. Their fur or feathers change color with the seasons, allowing them to blend into their surroundings and better avoid predators or capture prey.Insulation: They have adaptations that provide insulation against the cold, such as thick fur or feathers and dense undercoats. These adaptations help retain body heat and prevent heat loss in freezing temperatures.Compact body size: Many of these animals have a compact body size, which helps to reduce surface area relative to volume and minimize heat loss. A smaller body size also allows them to conserve energy and find shelter more easily.Behavioral adaptations: They exhibit behaviors that enable them to cope with the cold, such as hibernation or torpor in Siberian hamsters, which allows them to conserve energy during winter months when food is scarce. Some species, like collared lemmings, build tunnels under the snow for protection and access to food sources.These adaptations help these animals survive and thrive in cold and snowy environments where resources are limited.
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Which of the following is an example of a plant that reproduces via flowers.
*select all that apply
Which of the following is an example of a plant that reproduces via flowers.
*select all that apply
Fern
Pine tree (conifer)
Moss
Gymnosperm
Angiosperm
Daisy
Answer:
Daisies and angiosperms
Explanation:
I'm sorry I cannot provide much insight on this, but this is correct by most standards.
Which of the following immune responses occurs when a cytotoxic T cell is activated?
Cytotoxic T cells release antigen that inform other white blood cells to fight the pathogen causing the infection.
Cytotoxic T cells release histamine molecules that signal the blood vessels to dilate.
Cytotoxic T cells release antibodies that neutralize antigens of pathogens.
Cytotoxic T cells release proteins that trigger infected cells to undergo apoptosis and/or cytolysis.
When a cytotoxic T cell is activated, they release proteins that trigger infected cells to undergo apoptosis and/or cytolysis. The given statement is the correct option.
Therefore, the correct option is: Cytotoxic T cells release proteins that trigger infected cells to undergo apoptosis and/or cytolysis.An immune response is a reaction that occurs in the human body against foreign substances and infectious agents such as bacteria, viruses, and fungi.
There are two types of immune responses: innate and adaptive. Adaptive immune responses occur when an immune cell recognizes a specific antigen. Adaptive immunity consists of humoral immunity and cell-mediated immunity. The latter is a type of immune response mediated by T cells. T cells come in two major types, namely helper T cells and cytotoxic T cells.Cytotoxic T cells are specialized white blood cells that eliminate infected or cancerous cells in the human body.
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Morgan proposed that the likelihood of crossing-over depends on the _________ between two genes.
Morgan proposed that the likelihood of crossing-over depends on the distance between two genes. Specifically, he observed that genes located farther apart on a chromosome had a higher likelihood of undergoing crossing-over than genes that were located closer together.
This observation led to the development of the concept of genetic mapping, which allows scientists to determine the relative positions of genes on a chromosome based on their likelihood of crossing-over. The distance between two genes is measured in units called centimorgans, which represent the frequency of crossing-over events between the two genes.
Morgan proposed that the likelihood of crossing-over depends on the distance between two genes. In his studies, he discovered that the closer two genes are located on a chromosome, the less likely they are to undergo crossing-over during meiosis. Conversely, genes that are farther apart have a higher probability of crossing-over. This concept led to the development of genetic mapping, where the distances between genes can be measured in terms of recombination frequencies, allowing researchers to create maps of gene positions on chromosomes.
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A structure formed from molecules that combine to make up cells
A structure formed from molecules that combine to make up cells is called an atom.
what is meant by locomotor skill
Answer:
Body moving from one place to another in a vertical plane. Develop bodily control. Walking, running, leaping, jumping, hopping, galloping, sliding, & skipping.
Explanation:
Where does the exchange of oxygen (from the air) with carbon dioxide (from the cells) take place?
A. Where are the bronchi meet the bronchioles
B. Where the blood meets the cells
C. Where the nasal passages meet the air
D. Where are the alveoli meet capillaries
Answer:
The Answer is Option D.
Exchange of respiratory gases, oxygen and carbon dioxide take place in the alveoli of the lungs. Oxygen which is inhaled from the atmosphere diffuses through the walls of the alveoli and reaches to the adjacent capillaries into the red blood cells.
Answer:
D. Where are the alveoli meet capillaries
the sba plate question 1 options: is selective for gram positive bacteria and differential for hemolysis. is differential for hemolysis. is selective for gram positive bacteria. is neither selective nor differential. is enriched for fastidious organisms and differential for hemolysis. is enriched for fastidious organisms.
B) Selective for gram positive bacteria and differential for hemolysis is selective for gram positive bacteria.
The SBA plate( lamb blood agar) is a type of culture media containing lamb blood that's used to grow and prize bacteria from clinical samples. The medium contains blood, which gives nutrients for bacterial growth, and agar, which offers a establishment face for bacteria to grow on. The SBA plate is picky as well as discriminational.
It's picky for gramme-positive bacteria because it contains impediments that hamper gramme-negative bacteria from growing. It's also discriminational for hemolysis because it permits different forms of hemolysis( full, partial, or no hemolysis) to be linked grounded on the appearance of the colonies and the girding blood agar. This specific is veritably important for recognising and characterising colorful forms of streptococcal bacteria.
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what important evolutionary advance did not occur in the paleozoic? first mammals first hard-shelled eggs first trees first jaws animals walking on land
The important evolutionary advance that did not occur in the Paleozoic is the first hard-shelled eggs.
evolution is the change in heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes, which are passed on from parent to offspring during reproduction.
Evolution in organisms occurs through changes in heritable traits—the inherited characteristics of an organism. In humans, for example, eye colour is an inherited characteristic and an individual might inherit the "brown-eye trait" from one of their parents.
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a certain species of butterflies gradually becomes darker. the birde in the same area feed on the white or lightly colored buterflies, ;eaving tuterflies that are dar colore. what type of selection
Answer:
Natural selection.
Explanation:
The dark colour butterflies will increase in their population due to favourable conditions of the surrounding environment. They are naturally selected by the nature due to their suitability and compatibility with the environment that allows dark butterflies to increase in their population. The colour of dark butterflies helps them to not eaten by the predators that allows them to increase in their population so we can say that this type of selection is natural selection.
Research shows that habitat
fragmentation results in losing
which of these organisms FIRST?
A. amphibians
C. humans
B. the biggest species
D. insects
Answer:
A. Amphibians
Fill in the blank. h = 14 cm Remember that 1 cm3 = 1 mL and 1,000 ml = 1 L. The volume of this aquarium is 7 = 25 cm w = 12 cm
PLS HELP THIS IS DO TODAY
The required volume given the length 25cm, width 12cm, and height 14cm is 4200mL
The formula for calculating the volume is expressed as:
Volume = LWH where:
L is the length
W is the width
H is the height
From the question, we are given the following parameters
Length = 25cm
Width = 12cm
Height = 14cm
Substitute the parameters into the formula given:
\(V = 25 \times 12\times 14\\V=4200cm^3\)
Convert to mL
Since 1cm³ = 1mL
Hence the required volume is 4200mL
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Osmosis is a specialized type of diffusion. Which of these is specific only to osmosis? a) Molecules move down their concentration gradient. b) Water molecules pass through a semipermeable membrane. c) Molecules move from a region of high concentration to low concentration. d) The process may occur with gases as well as solids and liquids.
The specific characteristic of osmosis is that water molecules pass through a semipermeable membrane. Option b) is correct.
Osmosis is the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. This process occurs until equilibrium is reached, with water molecules moving to balance the concentration of solutes on both sides of the membrane. Other molecules, such as gases, solids, and liquids, can diffuse through membranes by simple diffusion, but the unique aspect of osmosis is the selective movement of water molecules.
While options a), c), and d) are general characteristics of diffusion, osmosis specifically refers to the movement of water molecules through a selectively permeable membrane. Hence, the correct answer is Option B.
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In which stage of the cell cycle does replication occur? *
Prophase
Cytokinesis
Metaphase
Interphase
Explanation:
you need to put the pic down too
There are three main regions in leaves: the epidermis, mesophyll and veins. Explain the roles each of these play in the proper functioning of a leaf by completing the following
- guard cells - bundle sheath - spongy mesophyll - mesophyll - stomata - phloem
- palisade mesophyll - cutin
- xylem
- tightly
- loosely
- epidermis
- air spaces
The ____ is a single-celled, mostly non-photosynthetic, protective layer that constitutes the upper and lower surface of leaf blades. The upper layer is generally covered by a thick, waxy coating of ___ to help minimize water loss. Alternatively, the lower layer contains a number of pores, called ___ for gas exchange. The ___ around these pores are the only cells that contain chlorophyll and can conduct photosynthesis
Leaves are structures that make it possible for plants to photosynthesize. There are three primary regions in leaves: the epidermis, mesophyll, and veins. Each of these regions serves a critical function in the effective functioning of the leaf.
Guard cells- The guard cells are present in the stomata of the leaves. They control the size of the stomata, which helps in controlling the transpiration rate. They also protect the stomata from water loss. Bundle sheath- The bundle sheath is a layer of cells present in the plant's mesophyll. It surrounds the vein and is responsible for transporting food and other essential minerals. Spongy mesophyll- It is responsible for photosynthesis and gas exchange in the leaves. The loosely packed cells provide a large surface area for carbon dioxide and oxygen exchange. Mesophyll- The mesophyll is the internal layer of the leaf. It contains the palisade and spongy mesophyll and is responsible for photosynthesis. Stomata- Stomata is responsible for gas exchange.
It allows the leaves to absorb carbon dioxide and release oxygen. Phloem- Phloem is responsible for carrying sugars from the leaves to other parts of the plant, such as the roots. Palisade mesophyll- The palisade mesophyll is responsible for photosynthesis. It's densely packed with chloroplasts that absorb sunlight to create food for the plant. Cutin- Cutin is responsible for protecting the leaf from water loss. Xylem- Xylem is responsible for carrying water from the roots to other parts of the plant. Epidermis- The epidermis is a protective layer that covers the leaf surface. Air spaces- The air spaces present in the leaf help in the exchange of gases between the mesophyll cells and the environment.
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the female part of the plant is called the
A. stamen
B. pistil
Answer:
B
Explanation:
Answer:
the correct answer is B. pistil
How did the polar bears get their white fur?A.Bears have various alleles for fur color ranging from dark to light. Those bears with the lighter fur had a better chance of survival in the biome, so they lived and reproduced passing on their light colored gene to their offspring. As generations passed, white fur became more common.B.As a polar bear grows up, its fur gradually gets lighter, so by the time they are a teenager, they have fully white fur and are then best suited to survive in their environment.C.Polar Bears migrated from the Pacific Northwest up to the Tundra and Arctic because they knew that they would have a better chance of surviving in this cold region.
Answer:
I believe it’s c report me if I’m wrong on this
Explanation:
When a couple of forces (moment) acts on a body what condition(s) will be on this body? A Body is moving and rotating B Body is moving in one direction Body is rotating D) Body is in equilibrium
When a couple of forces (moment) acts on a body, the condition on the body is that it is rotating.
The term "couple of forces" refers to a pair of forces that have equal magnitudes, opposite directions, and are parallel to each other but do not share the same line of action. When a couple of forces acts on a body, it creates a rotational effect or moment. This moment causes the body to rotate around its center of mass or a specific axis.
Therefore, the presence of a couple of forces indicates that the body is undergoing rotational motion. The body may or may not be moving in a particular direction, but it will definitely be rotating.
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An example of mutualism, an ecosystem of a pond.
Mutualism in a pond is in the interaction of fish and plants because both benefit from the other.
What is mutualism?Mutualism is a term that refers to the biological interaction between individuals of different species, where both benefit and improve their biological fitness.
Mutualism differs from other interactions in which one species benefits from another without reciprocity, these are cases of exploitation, such as parasitism, predation, etc.
Example of mutualism in a pondAn example of mutualism between the organisms that live in a pond is the interaction between fish and aquatic plants because the fish feed on the aquatic plants and their solid waste serves as fertilizer and nutrients for the plants to grow.
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_____ is the element from which iron is taken.
Answer:
The answer is- iron
Explanation:
Question 9 of 25
How does a cell's history affect the benes expressed by the cell?
OA. All of the genes contained in a cell must be expressed as soon as
the cell forms so it can differentiate.
OB. Internal and external conditions determine which genes are turned
on or off as the cell develops.
C. The genes that are turned on when a cell is developing are the only
genes that will be expressed during the cell's life.
D Refore a call dividae unnececean nongo are removed from ite
← PREVIOUS
Which genes are turned on or off as the cell develops depends on both internal and external factors. Genes regulation is a mechanism wherein the past of a cell can influence the genes that are produced by the cell.
How do cellular functions change as a result of a gene sequence?Proteins are controlled by genes, which determine how cells function. Thus, the millions of genes that are expressed in a certain cell determine the capabilities of that cell.
Why don't all of the genes in a cell's genome express themselves at once, only a subset of the genes that do?Additionally, because DNA must be unwound from its tightly coiled shape in order to be translated and transcribed, only a portion of the genes are expressed by each cell. This conserves space.
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Answer: B
Explanation:
A highly contagious bacterial infection that produces a honey-yellow, crusted lesion that is usually found on the face is known as?
The highly contagious bacterial infection that produces a honey-yellow, crusted lesion that is usually found on the face is known as impetigo.
It is caused by the bacteria Staphylococcus aureus or Streptococcus pyogenes and is most common in children aged 2-6 years old. The infection can spread rapidly through skin-to-skin contact or by touching contaminated objects, and is more common in warm, humid weather.
Impetigo typically starts as a red sore or cluster of blisters that eventually rupture and ooze fluid, forming a honey-yellow crust. The crust can be itchy and may spread to other areas of the body if left untreated. Treatment typically involves topical or oral antibiotics to eliminate the bacteria causing the infection, as well as keeping the affected area clean and covered to prevent further spread.
Good hygiene practices, such as regular hand-washing and avoiding contact with infected individuals or their personal items, can also help prevent the spread of impetigo.
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1. Which of the following is true about eating?
Calcium is not very important.
It is not important to eat before you exercise.
Carbohydrates are not good for you.
It's important to eat the right kinds of food before you exercise.
Answer:
It's important to eat the right kinds of food before you exercise.
Explanation:
Since:
-Carbs help fuel your brain, kidneys, heart muscles, and central nervous system.
-Eating or drinking before exercise can improve workout performance and may allow you to work out for a longer time or at a higher intensity. If you don't eat, you might feel sluggish or lightheaded when you exercise.
-Calcium is a mineral most often associated with healthy bones and teeth, although it also plays an important role in blood clotting, helping muscles to contract, and regulating normal heart rhythms and nerve functions.
all the other options are false
therefore your answer is D
hope this helps:)
_____ are resources that come from living trees.
Lumber, pulp, and paper
Pulp, maple syrup, and nuts
Maple syrup, rubber, and nuts
Rubber, pulp, and paper
Answer:
I would say that the answer is B pulp, maple syrup, and nuts
Explanation:
Lumber and paper require the death of the tree most of the time so the answer is not A or D. Making rubber from a living tree can result in the death or stunted growth of a tree. Maple syrup, nuts, and pulp can be obtained from a tree without killing it so B would be the best answer.
The state of maintaining a stable internal environment regardless of changing external conditions is called _____?
Answer:
Homeostasis
Explanation:
we learned this in class last year hope it helped!!
The ability to preserve a consistent internal environment throughout the face of changing external variables would be known as Homeostasis.
HomeostasisHomeostasis would be any identity-regulating mechanism throughout which an item or identity preserves consistency whilst also changing to the optimal circumstances for survival.
Whenever homeostasis seems to be effective, things will continue; since it is not, this same creature suffers a calamity as well as dies.
Thus the above approach is correct.
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