After doing some research I got a close answer.
The table is correct except for the very first one being fossil A. I didn't get that one correct so don't use that one.
Answer:
Explanation:
Organism 1- Brachiopoda Fossil D
Organism 2- Mollusca, Gastropoda Fossil A
Organism 3- Arthropoda, Trilobita Fossil C
Organism 4- Chordata, Actinopterygii none
Organism 5- Pteridophyta Fossil B
Organism 6- Nematoda none
Organism 7- Ascomycota none
Is the introduction of contaminants into a natural environment that causes instabilitying organisms and the physical environment
interact in an immense and complicated web of relationships.
O a Chemicalsubstances
Ob pollution
Oc. Environment
Answer:
ℴℴℴ
Explanation:
ℯℯ ℴ ℯ ℊ
Which is another name for observation?
Answer:
I would say hypothesis is what we use for science as a guess, but also monitoring is a good one.
Explanation:
Another name for observation is inspection.
hormones stimulate certain endocrine glands to secrete hormones.
Answer:
hope its helps you
Explanation:
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The main job of an ecologist is to
How are rivers and streams able
to keep algae from growing?
Plz help
Answer:
answer is A just did it on my acellus
Explanation:
The correct answer is option (A) the running water will sweep the algae downstream and keeps it from growing.
What is algal bloom?
The rapid increase in production of algae in freshwater and marine water system is called algal bloom. It is also known as the discoloration of water from the algal pigment.What causes algal bloom?
Excessive nitrogen and phosphorus cause overgrowth of algae.The overgrowth of algae consumes oxygen and blocks sunlight from underwater plants. When the algae eventually dies, the oxygen in the water is consumed.As the river and streams are always flowing it will sweep the algae which will prevent it from growing further.
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Are any bacteria made of more than one cell?
Answer:
Explanation:hmmmmmmm
Whose argument is stronger regarding the SAC curves and the LAC curve? A. The draftsman since the lowest point on each SAC curve will have a horizontal tangent line which only occurs at the lowest point on the LAC. B. Jacob Viner since the SAC curves can be adjusted slightly and still keep their U-shape in a way that makes their lowest points end up on the LAC curve. C. Jacob Viner since the long-run average cost curve must be composed of the lowest points on any individual short-run average cost curve. D. The draftsman since, while it is true that the points of tangency of the SAC curves with the LAC curve are at each SAC curve's minimum, it is impossible to illustrate it accurately.
NB: This is a business question, not biology.
Answer:
SAC (Short-run Average Cost) and LAC (Long-run Average Cost)
The stronger argument regarding the SAC (Short-run Average Cost) curves and the LAC (Long-run Average Cost) curves is:
A. The draftsman since the lowest point on each SAC curve will have a horizontal tangent line which only occurs at the lowest point on the LAC.
Explanation:
The costs of all factors of production become variable in the long run. But in the short-run, some costs are variable, and some are fixed. When the producer starts operating over the long run period, it can then operate without the constraints imposed by the presence of the fixed-cost factors. Therefore, in the long run, the average cost (LAC) is equal to the short-run average cost (SAC) because there is an unconstrained minimum average cost at all output levels.
In a population of a certain fish, the gene for fin size has two alleles. The dominant allele leads to large fins, and the recessive allele leads to small fins. Genetic tests on this population show that the frequency of the recessive allele is 0.91. What is the frequency of the dominant allele
Answer:
0.09
Explanation:
A locus can be defined as a specific genetic location for a particular gene variant (i.e., allele). Diploids organisms (e.g., humans) have two sets of homologous chromosomes, and each pair of homologous chromosomes may have the same alleles or may have 2 different alleles in each locus. Moreover, allele frequency refers to the proportion of one allele with regard to all alleles at the locus in the population. In this case, there are only two alleles for this locus in the population, and the frequency of the recessive allele is equal to 0,91, thereby the frequency of the remaining dominant allele is equal to 0.09 ( 0.91 + 0.09 = 1).
Two different plant species each carry 36 chromosomes (total) in their somatic cells. Species A is diploid, and species B is triploid. What is the haploid (1N) chromosome number for each species
Answer: Species A is diploid, it means 2n=36, the haploid number is 36/2=18. Species B is triploid, it means 3n=36, then the haploid number is 36/3=12.
Explanation:
A chromosome is an ordered bundle of DNA associated with proteins such as histones, and it is found in the nucleus of the cell. Different organisms have different numbers of chromosomes. Humans, for example, have 23 pairs of chromosomes, 22 of them are autosomal pairs, and one pair are sex chromosomes, which indicates the sex of a person. Each parent contributes one chromosome from his or her autosomal pair and one from the sex pair, so that the offspring get half of their chromosomes from their mother and half from their father.
A haploid cell has only one set of chromosomes (n), whereas diploid cells have two sets of chromosomes (2n) and triploid cells have three sets (3n). In the example of humans, a diploid cell is a somatic cell and has 46 chromosomes (or 23 pairs). And a haploid cell, a gamete for example, has 23 chromosomes.
If two species of plants carry 36 chromosomes, and species A is diploid, it means 2n=36. Then the haploid number is 36/2=18. Species B is triploid, it means 3n=36. Then the haploid number is 36/3=12.
Coat color in rabbits is represented by a gene (C). The different phenotypes are dominant in this order: Agouti > chinchilla > Himalayan > albino. Which type of inheritance is shown?
Answer:
Multiple Alleles
Polygenic Inheritance
Incomplete Dominance
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Answer:
Please translate it into English
As the human population grows, some minerals in everyday products could
become scarce. Which of the following is the best way to address this
problem?
Answer:
Explore uses of more plentiful minerals.
Explanation:
Because the use of more can get us more items that can grow the population and interest.
How does the use of greywater differ from water reclamation?
a.
If collected separately, greywater can be used for certain applications without treatment.
b.
Greywater use is more costly than water reclamation.
c.
Water obtained from water reclamation processes can be used for drinking, while greywater cannot.
d.
Greywater has been mixed with sewage while water used in water reclamation is derived from cleaning water.
Greywater can be used for certain purposes without being treated if it is collected separately.
What distinguishes reclaimed water from gray water?Recycled water—also known as "reclaimed water"—is treated, regulated water that can be used only in certain categories. Graywater is untreated wastewater from domestic sources that can be used under certain regulatory restrictions (with the exception of waste from kitchen sinks, dishwashers, and toilets).
What distinguishes desalination from water reclamation?Desalination is a process that transforms seawater or brine water into drinkable water by removing dissolve salts. Additionally, reclaiming water is converting waste water.
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Huntington's disease is an autosomal dominant trait. Given the pedigree below, if individual IV-4 has three children with a normal woman, what is probability that they would have at least one child with the disorder
Answer:
The answer to the given question is =7/8
Explanation:
In autosomal dominant traits, one copy of the affected gene is enough to cause the disease. Let ’A’ be the affected gene, ‘a’ be the non affected gene. Since IV-4’s parents are a couple of affected and non-affected. So, he has the genes Aa, i.e. a single affected gene.
A a
a aA aa
a aA aa
Number of children affected=[tex]\frac{1}{2}[/tex]
Number child affected out of three = [tex](\frac {1}{2}) ^{3}[/tex]
At least one child affected out of three = 1-P (number of children affected out of 3 )
= [tex]1-(1/2)^{3}[/tex]
= [tex]\frac{7}{8}[/tex]
So, the answer to the given question is 7/8
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Which of the following is not a Transmissible Spongiform Encephalopathy?
A. Variant CJD
B. Bovine Spongiform Encephalopathy
C. Fatal Familial Insomnia
D. Typhoid Fever
Viruses are not living because as implied by the passage
Answer:
Since a virus is a particle composed of genetic material and proteins enclosing it, therefore it is not considered a cellular entity and does not fulfill the criterion of a living world.
A molecule of mRNA with the sequence GGU CAU CAC UAU experienced a point mutation that caused the sequence to become G CG UCA UCA CUA. Which of the following terms describes this type of mutation?
Nonsense Mutation
Missense mutation
Frameshift Mutation
Silent mutation
Answer:
Missense mutation
Explanation:
Why might an individual with AIDS have difficulty fighting off otherwise harmless infections? please answer!! last question I have!!!
Answer:
The HIV virus that causes AIDS kills T-cells. T-cells are responsible for fighting off infections. So someone with AIDS has a reduced number of T-cells and are unable to fight off infections that are harmless to other individuals.
4. Explain how the structure of a bacterial cell differs from the structure of the cells in
plants and animals. (3 points)
Help pls
A bacterial cell doesn't have organelles such as nuclei, mitochondria or chloroplasts.
g You have made a transgene that expresses green fluorescent protein (GFP) in spermatogonia only. If you are examining a transverse section of the testes where would you expect to find GFP positive (GFP) cells
Answer:
The correct answer is - Associated with the Sertoli cells in the seminiferous tubule.
Explanation:
Interstitial cells are found between seminiferous tubules and Each spermatogonial cell undergoes the process of spermatogenesis process and produces sperms in the lumen of seminiferous tubules.
This could be possible only due to GFP gene expresses only in spermatogonia, we can expect to find GFP + cells associated with the Sertoli cells in the seminiferous tubules.
Therefore, Spermatogonia are associated with Sertoli cells in the seminiferous tubules of the testis.
A. the influence of environment on the expression of a particular genotype. B. the expression of a dominant phenotype in a heterozygote. C. the expression of one gene masking the effects of another gene. D. quantitative traits that diminish or intensify a particular phenotype. E. the increased expression of a particular trait when a hybrid species is formed.
The question is incomplete, the complete question is;
Penetrance and expressivity are related to
A. the expression of a dominant phenotype in a heterozygote.
B. the increased expression of a particular trait when a hybrid species is formed.
C. the expression of one gene masking the effects of another gene.
D. quantitative traits that diminish or intensify a particular phenotype.
E. the influence of environment on the expression of a particular genotype.
Answer:
the influence of environment on the expression of a particular genotype.
Explanation:
In genetics, we define penetrance as the proportion of individuals in a given population carrying a particular gene/allele which leads to the expression of the particular trait associated with that gene/allele.
Expressivity is defined as the degree of expression of a given phenotype by individuals who possess a particular genotype. Expressivity shows the extent of variation in expression of genes by individuals having a particular genotype.
Both penetrance and expressivity has to do with the influence of environment on the expression of a particular genotype.
What is the name of a type of nucleic acid that is used for signalling in cells
Answer:ribonucleic acid
Explanation:
- Roots are the only organs in a plant that need water.?
Answer:
No
Explanation:
But they are the only part of plants that absorb water
No roots are not the only organs in a plant that needs water.
What are roots of plant?
Roots are organs of higher plants that absorbs water and mineral ions from soil. Two main type of root system is observed in plants: Tap root system and Fibrous root system. Tap root systems are found in dicotyledonous angiosperms (such as pea) and gymnosperms (such as pine) whereas Fibrous root system is mostly observed monocotyledonous angiosperms (such as wheat or rice).
The three main primary function of the roots are:
1. They anchor the plant to the soil.
2. Absorb water and mineral ions from the soil to be later used by the plant.
3. It acts as food reserve.
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1.Explain how is small intestine designed to absorb digested food.
2.Write two differences between the nutrition in amoeba and human beings.
3.Fungus can be harmful and useful. Give an example showing both of these traits of fungus.
Answer:
Similarity:
Amoeba and human beings require the same nutrients like carbohydrates, proteins, and fats for their growth and survival.
Difference:
1. Mode of Nutrition:
Amoeba is unicellular and microscopic, which makes it an organism that uses the Holozoic mode of nutrition. It ingests food through its cell membrane and feeds on other tiny organisms like bacteria, algae, and protozoans. On the other hand, human beings are multicellular organisms and use saprophytic and holozoic modes of nutrition. They ingest complex food materials that are broken down into simpler nutrients.
Science Practice: Predict______ and__________ based on a given set of data.
Answer:
subject
Explanation:
try only
A team of researchers is investigating a new carbon-rich molecule important to life. They find evidence for the
presence of a carbon-carbon double bond in the molecule. This observation means that the new molecule likely
exists as which of following?
A. an aliphatic hydrocarbon
B. a hydrocarbon ring
C. both cis and trans isomers
Answer:
i think they found a hydrocarbon ring
The ____structure of a protein refers to the linear sequence of amino acids in that protein. Make up an example of the primary structure of a protein in the space below. The ____structure of a protein refers to a regular, recurring arrangement of the amino acid chain. One such arrangement called the occurs when the amino acid chain forms a spiral or coil. Draw an example of this structure in the space below.
Answer:
Primary structure and secondary structure
the chicken first or the egg first?
Answer:
The egg
Explanation:
When aquatic creatures evolved to walk on land, they laid eggs. One of those eggs became a chicken.
Answer:
Egg
Explanation:
According to science chicken because fusion take place first
Draw and label the stomach of ruminant animals
What process creates new cells?
A. cell division
B. cell metamorphosis
C. cellokinesis
Answer:
A. cell division
Explanation:
