How would one determine population change?
(5b)
add the deaths and births then subtract the immigrants
add the births and immigrants then subtract the deaths and emigrants
O add the deaths and immigrants then subtract the births
o add the births and immigrants then subtract the emigrants plus births
It is possible to determine population change by adding the births and immigrants then subtracting the deaths and emigrants. These phenomena modified the size of a population.
What is population change?A population can be defined as a group of individuals of the same species living in a given area.
The forces that alter the growth/size of a population include birth rate, immigration, death rate, and emigration.
The birth rate and immigration positively impact the size of a population, whereas death rate and emigration negatively impact the population.
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A site on an enzyme other than the active site that can bind molecules and influence the shape of the active site is referred to as a(n)
A site on an enzyme other than the active site that can bind molecules and influence the shape of the active site is referred to as an allosteric site.
What is an allosteric site?An allosteric site is a site on an enzyme other than the active site that can bind molecules and influence the shape of the active site.
Enzymes that have an allosteric site are known as an allosteric enzyme.
Allosteric sites serves as a regulatory point for enzyme activity.
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Alfred has drawn a flow chart to show a time sequence of four processes of cellular respiration. Which sequence of three labels is the best choice to finish his model?.
The sequence that is the best choice to finish the model is glycolysis >> pyruvate processing >> citric acid cycle. They are steps of cellular respiration.
What is cellular respiration?
Cellular respiration is a series of reactions by which aerobic cells produce ATP (energy) by using the energy from foods and oxygen.
Cellular respiration has three main steps: glycolysis, the citric acid cycle and oxidative phosphorylation.
Glycolysis occurs in the cytoplasm, whereas the acid citric cycle and oxidative phosphorylation occur in the mitochondria.
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Fossils reveal ecological relationships from the past- how do we know when the moth species Stigmella
heteromelis was alive, even though we do not have fossils of the moth or caterpillar?
The age of the moth species Stigmella heteromelis was determined from the age of fossils of organisms in which they are in an ecological relationship with.
What are fossils?Fossils are remains of dead plants and animals that have been preserved from the past.
Fossils are used to determine the time of appearance of species.
Based on ecological relationship between the fossils of organisms that are in an ecological relationship with the moth species, the time when the moth species was alive can be determined.
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Describe the steps in which a gene in passed from parent to offspring. Make sure to describe how the gene is duplicated, separated, and given to the offspring.
Answer:
Mitosis occurs in somatic cells; this means that it takes place in all types of cells that are not involved in the production of gametes. Prior to each mitotic division, a copy of every chromosome is created; thus, following division, a complete set of chromosomes is found in the nucleus of each new cell. Indeed, apart from random mutations, each successive duplicate cell will have the same genetic composition as its parent, due to the inheritance of the same chromosome set and similar biological environment. This works well for replacing damaged tissue or for growth and expansion from an embryonic state. Because the genes contained in the duplicate chromosomes are transferred to each successive cellular generation, all mitotic progeny are genetically similar. However, there are exceptions. For example, there are genetic variations that arise in clonal species, such as bacteria, due to spontaneous mutations during mitotic division. Furthermore, chromosomes are sometimes replicated multiple times without any accompanying cell division. This occurs in the cells of Drosophila larvae salivary glands, for example, where there is a high metabolic demand. The chromosomes there are called polytene chromosomes, and they are extremely large compared to chromosomes in other Drosophila cells. These chromosomes replicate by undergoing the initial phases of mitosis without any cytokinesis (Figure 2). Therefore, the same cell contains thick arrangements of duplicate chromosomes side by side, which look like strands of very thick rope. Scientists believe that these chromosomes are hyper-replicated to allow for the rapid and copious production of certain proteins that help larval growth and metamorphosis
Explanation:
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In your own words, explain the process of convection.
Answer:
Convection is a process by which heat is transferred by bulk movements of molecules that are within fluids such as gases and liquids.
Explanation:
dna is the nucleuse carries the gentic code for making ribisome in the diagram c is the process by which dna code
Answer:
mRNA
Explanation:
The mRNA interacts with a specialized complex called a ribosome, which "reads" the sequence of mRNA nucleotides. Each sequence of three nucleotides, called a codon, usually codes for one particular amino acid. (Amino acids are the building blocks of proteins
When comparing today's animals to the ones
from the Mesozoic era, which is true?
A. All of the animals from the Mesozoic era are extinct.
B. Most of the animals from the Mesozoic era are extinct.
C. Dinosaurs still roam the Earth.
D. All of the animals are still the same.
Answer:
A and B should be the answer if you can pick two, but B is the answer.
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James is researching the advantages of varying beak sizes of four bird species in a local habitat. He records and graphs the data to show how many individuals there are in each species with different sizes of beak. The graph is provided. If all four species of birds are transported to a new habitat with completely new food sources, which species will most likely be able to avoid extinction?
The specie will avoid extinction which have a large amount of food in that environment probably specie B.
Specie that avoid extinctionThat specie will most likely be able to avoid extinction which receives more amount of desired food because food is the main source on which all living organism can survive.
If desired food is not available for the organism, its population size decreases and reaches to the point of extinction so we can conclude that the specie will avoid extinction which have a large amount of food in that environment.
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All of these examples show evidence for evolution because they show
and
.
Answer:
change over time and descent from a common ancestor
Answer:
1. change over time
2. descent from a common ancestor.
Explanation:
i got it right on edge
Jack needs to determine the missing flower part in this set: pistil, stigma, style, _____ Which part of a flower best completes the set? anther petals stamen ovary.
Answer: ovary
Explanation:
Which complex carbohydrate has 3 to 10 simple sugar units and cannot be broken down by the body's digestive enzymes
Oligosaccharides are complex carbohydrates that have 3 to 10 simple sugar units and cannot be broken down by the body's digestive enzymes. They are complex carbohydrates.
Oligosaccharides, complex carbohydrates and enzymesOligosaccharides are complex carbohydrates composed of three or more monosaccharides (e.g., glucose and fructose) or the union of two or more disaccharides (e.g., lactose).
Humans cannot digest these oligosaccharides because we don't have digestive enzymes such as ⍺-galactosidase, thereby they cannot be hydrolyzed.
Complex carbohydrates are in turn long chains (either branched or unbranched) of monosaccharides linked by glycosidic bonds.
A well-known example of complex carbohydrates (polysaccharides) is starch, which is composed of many subunits of glucose.
Enzymes that break down complex carbohydrates must have the ability to break glycosidic bonds.
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Single-celled prokaryotes that are classified by their ability to survive extreme conditions are.
QUESTION:-
What is meant by symptoms of a disease?
koii h?
Based on the seismograph measurements in the image, where is the epicenter of this earthquake?
Portland, OR
Salt Lake City, UT
San Francisco, CA
Los Angeles, CA
Answer: C
Explanation: E2022
Which animal has modified ecosystems more than any other animal and has had the greatest negative impact on world ecosystems?
gypsy moth
zebra mussel
human
shark
Answer:
Humans
Explanation:
Obviously
Blood must be maintained at a fairly constant pH between 7.35 - 7.45. One of the principal buffers responsible for doing this consists of carbonic acid in equilibrium with bicarbonate ions. If you breathe too deeply or rapidly, a condition known as hyperventilation may occur in which some muscles are temporarily paralyzed because the pH of the blood becomes too high.
Explain why the pH changes in this way and why the condition can be corrected by breathing in a paper bag.
Answer:
The most important way that the pH of the blood is kept relatively constant is by buffers dissolved in the blood. Other organs help enhance the homeostatic function of the buffers. The kidneys help remove excess chemicals from the blood, as discussed in the Kidney Dialysis tutorial.
Explanation:
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What is the name of a species that is highly connected to the entire food web and whose loss may result in ecosystem collapse
Which station model represents a location that has the greatest chance of precipitation?
30
191
1
23
82
101
2
81
65
123
3.
60
76
163
4.
66
The station model that represent a location that has the greatest chance of precipitation is:163
Answer: 2 ( 82 , 101 , 81 )
What type of protein fiber, commonly found in the extracellular matrix, is extensible?.
Answer:
There are two main types of fibre; collagen, and elastin and fibronectin.
There are two main types of fibre- collagen, and elastin and fibronectin are commonly found in extracellular matrix.
What are the functions of extracellular matrix?A large network of proteins and other molecules that surround, support, and give structure to cells and tissues in the body. The extracellular matrix helps cells attach to, and communicate with, nearby cells.
The extracellular matrix (ECM) is the non-cellular component present within all tissues and organs, and provides not only essential physical scaffolding for the cellular constituents but also initiates crucial biochemical and biomechanical.
The extracellular matrix helps cells attach to, and communicate with, nearby cells, and plays an important role in cell growth, cell movement, and other cell functions.
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Tension is the major type of stress at transform plate boundaries
Based on the population pyramid, which has the lowest cohort (group) of people?
O 35-39
O 0-4
O 20-24
O 80-84
Explain development of pollen grains and ovules
Explanation:
Pollen is produced within the anthers (microsporangia or pollen sacs) of the flower. During its development from an undifferentiated mound of cells (anther primordium) the anther forms two general groups of cells. The reproductive or sporogenous cells give rise to the microspores and are formed from cells located centrally within the developing anther. The non-reproductive cells form discrete anther tissues layers and include the epidermal, cortical and tapetal cell layers surrounding the sporogenous cells. The tapetum which is the innermost layer of the pollen sac plays a dominant role particularly during the microspore stage. For example, many male sterile mutations affect tapetal cell functions and development is often arrested during the microspore stage.
Microsporogenesis and microgametogenesis
Two distinct and successive developmental phases, microsporogenesis and microgametogenesis, lead to the production of the mature microgametophytes.
dev
Microsporogenesis comprises the events which lead to the formation of the haploid unicellular microspores. During microsporogenesis the diploid sporogenous cells differentiate as microsporocytes (pollen mother cells or meiocytes) which divide by meiosis to form four haploid microspores. Each diploid meiocyte gives rise to a tetrad of four haploid microspores and microsporogenesis is complete with the formation of distinct single-celled haploid microspores.
Microgametogenesis comprises events which lead to the progressive development of the unicellular microspores into mature microgametophytes containing the gametes. This phase begins with the expansion of the microspore which is commonly associated with the formation of a single large vacuole. Vacuolation is accompanied by the displacement of the microspore nucleus to an eccentric position against the microspore wall. In this position the nucleus undergoes first pollen mitosis (pollen mitosis I) which results in the formation of two unequal cells, a large vegetative cell and a small generative cell each containing a haploid nucleus. The generative cell subsequently detaches from the pollen grain wall and is engulfed by the vegetative cell forming a unique 'cell within a cell' structure. The engulfed generative cell divides once more by mitosis (pollen mitosis II) to form the two sperm cells completely enclosed within the vegetative cell cytoplasm either before pollen is shed (tricellular pollen) or within the pollen tube (bicellular
Octopuses, mammals, and some jellyfish have eyes that contain a lens for focusing light. Eyes with a lens were not present in the common ancestor of these animals. Is an eye with a lens a synapomorphy or a homoplasy?
Answer:
Synapomorphy !!
Explanation:
An Eye with an lens is specified as a Synapomorphy .
7. Individual parts of chromosomes
that determine your traits
Genetic crossword puzzle
Plants have chlorophyll found in chloroplast in the leaves. The chlorophyll usually helps the plants by
A. absorbing oxygen from the air.
B. capturing energy from sunlight.
C. disguising the plants from predators.
D. protecting the plants from sunlight.
Answer:
B. capturing energy from sunlight.
Explanation:
chlorophyll is a green substance in a plant which helps the plant capture energy from sunlight and make food and oxygen by the process called photosynthesise.
According to your cladogram, which two species are more closely related: worms and
spiders or worms and ants? How do you know?
According to cladogram, two species that are more closely related are worms and ants. The correct answer is worms and ants and they both are usually found in the herbivores food.
What is the category of herbivores ?It is the category in which animals feed on plants and the food based on plants.
Most ants are not eating worms but they may eat dead worms. Ants harm on worms by attacking the worms' food and To protect worms from these types of ants by raising the level of moisture in worm farm by re-wetting system regularly.
Sometimes, ants make way to compost bins to seek vegetables and fruit scraps meant for worms. This is the only kind of harm inflicted by ants on worms.
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How does the shape of an algae cell help it function?
Answer: Microtubules provide a rigid structure, or cytoskeleton. or produce oxygen and consume carbon dioxide
Explanation:
Most cells contain microtubules, which are tubelike structures formed by tubulin proteins. Microtubules appear and disappear as needed in many algae.
What are microtubules?Microtubules are important cytoskeleton components. They are found in all eukaryotic cells and play roles in mitosis, cell motility, intracellular transport, and cell shape maintenance.
Microtubules are made up of alpha- and beta-tubulin subunits that have been assembled into linear protofilaments.
Microtubules, along with intermediate filaments and microfilaments, are components of the cell skeleton that determine cell shape.
Microtubules play a variety of roles, including mitotic spindle assembly in dividing cells and axon extension in neurons.
Microtubules, which are tubelike structures formed by tubulin proteins, are found in the majority of cells. In many algae, microtubules appear and disappear as needed.
Microtubules provide a rigid structure, or cytoskeleton, in the cell that aids in cell shape determination and maintenance, especially in species lacking cell walls.
Thus, this way, the shape of an algae cell help it function.
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What is the most common and powerful agent of erosion?
wind
ice
water
animal behavior
Answer:
water ..................
Answer:
Water is correct...
Explanation:
EDGE
3. Which of the following is NOT a requirement of populations in Hardy-Weinberg equilibrium?
a. No mutation can occur.
b. Random mating must occur.
C. Small populations are important.
d. Gene flow must not take place.