Answer:
hope it helps...
Explanation:
In biochemistry, two biopolymers are antiparallel if they run parallel to each other but with opposite directionality (alignments). An example is the two complementary strands of a DNA double helix, which run in opposite directions alongside each other.
which structure makes proteins using instructions from the nucleus
Answer:
ribosomes
Explanation:
Ribosomes are small particles of RNA and protein found throughout the cytoplasm. Proteins are assembled on ribosomes. The nucleus gives coded instructions to the ribosomes, so they know what proteins to build.
2/3 divided by 1/6
Answer:
4
Explanation:
Which environmental policy must consider the expensive startup costs associated with building machines that harvest energy from clean sources? reducing air pollution regulating deforestation introducing new farming methods protecting ocean reefs
Answer:
i think its A
Explanation:
Answer:
A. reducing air pollution
Explanation:
edge 2022
what molecules form proteins when linked together with covalent bonds
Answer: Amino Acids
Explanation:
Proteins are formed when the organic Amino acids are linked together with covalent bonds. This means that proteins can be broken down into amino acids which is what the bond does when it processes proteins.
Amino acids are principally made up of Carbon, Hydrogen, Oxygen and Nitrogen and are classified into three groups namely: Essential amino acids , Nonessential amino acids and Conditional amino acids.
Geologic Time Scale
Time Period Duration (Millions of Years ago)
Cenozoic 66-0
Mesozoic 252-66
Paleozoic 541-252
Trilobites appeared approximately 521 years ago and disappeared approximately 250 million years ago. During which era did the trilobites live?
a
Cenozoic
b
Mesozoic
c
Paleozoic
d
None of These
Answer:
C. Paleozoic
Explanation:
Trilobites are a group of extinct marine arthropods. Just like many animals from today, including crustaceans, spiders, and insects, they belonged to the phylum Arthropoda. They lived in the Paleozoic era.
We can make this conclusion based on the fact that the period they existed in (from 521 to 250 million years ago) mostly fits the period described as Paleozoic (from 541 to 252 million years ago). However, we can see that they went extinct in the Mesozoic (250 million years ago is more than 252 million years ago). Compared to the entire time they existed, 2 million years is a relatively small amount of time, which makes Paleozoic the correct option.
Which of these is a characteristic of sexual reproduction?A)It takes place in all cells of the body.B)It forms exact copies of the parent cell.C)It results in offspring with genetic variation.D)It requires only one parent to form a daughter cell.
Answer/Explanation:
It results in offspring with genetic variation. 2 different mates must be used in sexual reproduction. This is because each person is different since cells are produced and combined differently in the original offsprings. If the two adults were exactly the same, the offspring would have the exact same cell traits. Likewise will be done for the offspring of the two adults. The genes may be similiar to the ones of the adults, but since combined it will not be an exact replica. In the long run sexual reproduction will result in an offspring with slightly different traits or genetic variation.
How do Hadley cells affect savannas climate
can someone quickly answer this i need to finish so many other things lol
Explanation:
A eukaryotic cell contains membrane-bound organelles such as a nucleus, mitochondria, and an endoplasmic reticulum. Organisms based on the eukaryotic cell include protozoa, fungi, plants, and animals. These organisms are grouped into the biological domain Eukaryota.
Any organism which has a closed membrane for a nucleas is a eukaryotic cell.
(organisms who dont have a nuclear memebrane is called prokaryotic cell)
We have eukaryotic cells as we have nuclear membrane but a bactaria(a prokaryotic cell) doesnt have a nuclear memebrane and all of its nuclear substances are floating insdie it getting jumbled up.
what position will kamala harris hold on sunday 20,2021
Answer:
Vice President?
Explanation:
Answer:
vice president she the first black woman,indian and woman to be vice president her innaguration was yesterday
Explanation:
Which of the following is a biotic factor in an ecosystem
Sunlight
Predators
Air
Soil
Answer: sunlight
Explanation:
what are the three primary methods scientists use to group organisms into monophyletic clades? please provide examples for each. which has caused the major reorganization of phylogenies, i.e. the fall of the kingdoms, and why only recently?
Answer:Cladistics (/kləˈdɪstɪks/, from Greek κλάδος, kládos, "branch") is an approach to biological classification in which organisms are categorized in groups ("clades") based on the most recent common ancestor.
Explanation: Modern taxonomists seek to employ classification schemes that are consistent with the underlying evolutionary relationships among species. As shown below, phylogenetic analyses present a way to test existing Linnaean classifications (some of which predate widespread acceptance of the fact of evolution) and to determine which classifications are consistent with evolutionary history, and which require modification.
Which statement is NOT a part of the cell theory?
Cells come from preexisting cells.
Cells are the basic unit of function of living things.
Cells are the basic unit of structure of living things.
Cell parts such as chloroplasts are self-replicating.
Answer:
Cells such as chloroplasts are self replicating
Explanation:
a chloroplast is not a cell its an organelle.
Cell Theory is a scientific theory proposed by Schwann in the year 1839. The cell theory has primary three postulates, which are used to describe the functioning of cells.
The correct answer is:
Option D. Cell parts such as chloroplasts are self-replicating.
The postulates of the cell theory are:
1. The cell theory states that all living cells arise from pre-existing cells.
2. The cells are the basic structural and functional unit of life.
3. The hereditary information is passed on from cell to cell, and the energy flows within the cell.
Thus, the statement that is not a part of cell theory is that chloroplast are self-replicating.
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How is prey different in wet/dry seasons in Zimbabwe?
Answer:
In the dry season, the animals congregate here freely and happily. In the wet season, though,waterholes are nothing special as there are plenty of water sources throughout the parks, so the animals are more widely dispersed and the odds of seeing them along the roads and waterholes are much slimmer.
Explanation:
In plants, yellow pea color (Y) is dominant over green pea color (y). Two heterozygous plants (Yy) are crossed. Which of the following results supports Mendel’s Laws
1.All of the yellow offspring are heterozygous for color.
2.all of the offspring have genotype Yy.
3.All of the offspring are yellow.
4. The offspring could be yellow or green.
Answer: .All of the yellow offspring are heterozygous for color.
Explanation: do your chart
The offsprings could be yellow or green since the genotypes obtained after cross will be YY, Yy and yy Therefore, option (4) is correct.
What are Mendel' law?The following is an outline of Mendel's laws of inheritance:
The principle of dominance is the foundation of the laws of inheritance. The law specifies that hybrid offspring will only inherit the dominant phenotype. The alleles that do not show in an individual are referred to as recessive traits, whereas the alleles that do manifest are referred to as dominant traits.
The alleles for each gene separate from one another during the process of gamete creation, ensuring that each gamete carries just a single copy of each allele for the genes that it contains. This is known as the law of segregation.
The law of independent assortment states that genes for various characteristics might segregate in an unrelated fashion while gametes are being formed.
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The pancreas is a human body organ that produces digestive enzymes and two very important hormones : insulin and glucagon. These two hormones work together to regulate the level of the sugar glucose in the bloodstream. If glucose levels in the bloodstream are too low, the pancreas secrets glucagon which causes the glucose level to increase. if blood levels are too high, the hormone insulin will lower the glucose level. if a person has just eaten a meal containing a large amount of sugar and other carbohydrate, which statement best describes how the pancreas will respond.
Answer:
If you have just eaten large amounts of sugar, your pancreas will in return release a large amount of insulin to even it out again.
Explanation:
the location of a blood source viewed in three mis as determined by projecting angleso part of individual bloodstains
Answer:
the direction of blood droplets can be determined from the shape of that it formed when they hit the flat surface. the tail of the elongated drop points to the travel Direction.this droplet was traveling from bottom left and upper right the victim may be somewhere in the lower left.
Explanation:
What are some species that are extinct? W
ecome extinct?
Answer:
Below
Explanation:
Most dinosaurs
Passenger Pigeon
Saber Toothed Tiger
Dodo
Great auk
Pyrean ibex
Giant Ground Sloth
Aurochs
give one other process that use oxygen
Answer:
breathing
Explanation:
when you breath you breath in oxegyn
PLEASE HELP AND THANK YOU!!!
Think about the factors that will influence the evolution of humans in the future. Name one factor that would exert influence through the process of natural selection and one factor that would exert influence through artificial selection.
A. natural selection: genetic engineering; artificial selection: demands placed on the brain
B. natural selection: individual mating choice; artificial selection: diseases
C. natural selection: diseases; artificial selection: genetic engineering
D. natural selection: demands placed on the brain; artificial selection: diseases
Part C
Projected values are only estimates. Can you think of either a natural or artificial factor that could increase or decrease the actual amount of wind energy the United States produces in the future?
Edmentum sample explanation:
Technological advancements in the future could lead to the production of higher-efficiency turbines, which could generate more electricity than originally predicted. Climate changes over time could affect wind speeds in a region, leading to higher or lower energy production.
The factors that would exert influence through the process of natural selection are a natural selection: diseases; artificial selection: and genetic engineering. The correct option is C.
What is natural selection?The strongest survive through natural selection, and the most favored traits endure through evolution. Natural selection is the result of selection pressure on a population's frequencies of a specific allele. Evolution is the process through which, over an extended period of time, new sets of naturally selected organisms emerged.
Future technological developments might result in the creation of turbines with a higher efficiency, which might produce more electricity than was initially anticipated. Wind speeds in a place may alter as the climate shifts through time, which could result in increased or decreased energy output.
Therefore, the correct option is C. natural selection: diseases; artificial selection: genetic engineering.
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Leaves are composed of vascular tissue that brings water in so that ground tissue can conduct photosynthesis. Based on this information, what level of organization describes leaves?
Tissue
Tissue
Organ
Organ
Organ system
Organ system
Organism
Organism
Answer:
Organism
Explanation:
All the things listed are the characters of an organism
Refer to the diagram to complete the sentence with the
correct numbers.
When hydrogen shares electrons with oxygen, the
outermost shell of the hydrogen atoms are full with
electrons and oxygen's valence shell is full
with
electrons. Because the valence shells
of these atoms are full, the atoms are stable.
:H
Answer:
Refer to the diagram to complete the sentence with the correct numbers.
When hydrogen shares electrons with oxygen, the outermost shell of the hydrogen atoms are full with 2
electrons and oxygen’s valence shell is full with 8
electrons. Because the valence shells of these atoms are full, the atoms are stable.
Explanation:
Edge 2021
According to the electronic configuration, when hydrogen shares electrons with oxygen , hydrogen atom has 2 electrons and oxygen atom has 8 electrons.
What is electronic configuration?Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
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Why is taxonomy important? Taxonomy allows scientists to analyze DNA and RNA sequences. Taxonomy allows a better understanding of relationships among species. Taxonomy allows the manipulation of genes for medical purposes. Taxonomy allows scientists to use both common names and domains of life.
Answer:
Taxonomy allows a better understanding of relationships among species.
Explanation:
Taxonomy is important because it allows a better understanding of relationships among species. Thus, the correct option is B.
What is Taxonomy?Taxonomy may be defined as the process of classification of living organisms on the basis of their characteristics.
Carolus Linnaeus, a Swedish botanical taxonomist is known as the father of taxonomy. He was the one who formulate a classical system for defining living plants and animals on the basis of their defining characteristics.
Therefore, taxonomy is important because it allows a better understanding of relationships among species. Thus, the correct option is B.
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A hand sanitizer was advertised to be more effective at killing bacteria than any antibacterial soap. Students were split evenly into 4 groups to test this claim. Groups 1-3 washed their hands using the assigned hand sanitizer or soap (see table) and warm water for two minutes, and then dried their hands with a paper towel. Group 4 rubbed their hands vigorously for 2 minutes in warm water, without any soap or sanitizer, and then dried their hands with a paper towel. After washing, each student’s hands were swabbed and the swab was applied to a culture plate and incubated. Finally, the bacterial cultures were counted. what is the independent variable?
Answer:
Group 4
Explanation:
The control group in this case would be those students in group 4.
The control group during an experiment is a group that does not receive the treatment administered to other groups and as such used as a standard for measuring the effects of the treatment on other groups. Whatever differences that exist between the control group and the various treatment groups is attributed to be as a result of the treatment administered to the groups.
In this case, group 4 only used warm water for washing their hands instead of the hand sanitizer/soap used by the other groups. Whatever differences found out in the bacterial count in their respective culture swabs can be attributed to the effects of the hand sanitizer/soap.
Which of the following characteristics apply mainly to invertebrates? (Choose all that
apply.)
A.) many different body plans that display all types of symmetry
b.) backbone and inner skeletal structure
c.)lack of skeletal structure in their bodies
d.)limited to no development of organ systems
Answer:
c and d
Explanation:
because they are cold blooded n have no back bone
The characteristics that mainly apply to invertebrates are as follows:
Lack of skeletal structure in their bodies.Limited to no development of organ systems.Many different body plans display all types of symmetry.Thus, the correct options are A, C, and D.
What are Invertebrates?Invertebrates may be defined as those forms of living organisms that lack a backbone, spinal cord, and central nervous system.
Invertebrates generally have bilateral or radial symmetry. They can be asymmetrical as well. They only have either incomplete or complete digestive systems. Invertebrates completely lack a skeletal system.
Therefore, the correct options for this question are A, C, and D.
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What do you think the following do when consumed? Protein, lipid,
carbohydrate, nucleic acid.
WILL GIVE BRAINLIEST
Answer:
Protiens-Amino acids which means Storage; Signals; Structural; Contractile; Defensive; Enzyme; Transport; Receptors
Lipid-Fatty acid and glycerol which means Energy storage; Protection; Chemical messengers; Repel water
carbohydrate- Monosaccharides some examples are Glucose, Fructose, Starch, Glycogen, Cellulose so that means Energy storage; Structure
nucleic acid- which is pentose, nitrogenous base, phosphate AKA
Nucleotides also known as DNA, RNA which mean that it is Genetic information
hoped this helped i letiray just got done with biology
Hey I just want to give back to the community for helping me up to expert. U dont have to answer the question but its hear for fun. Why do people shrink when the get older?
Answer:
Reynolds Institute on Aging, says that we can shrink for several different reasons. “Older adults can get shorter because the cartilage between their joints gets worn out and osteoporosis causes the spinal column to become shorter,” he says. “Adults can also lose lean muscle mass but gain fat
Explanation:
thx for points!!!!!!!!!!!!!!
Answer:
“Older adults can get shorter because the cartilage between their joints gets worn out and osteoporosis causes the spinal column to become shorter,” he says. “Adults can also lose lean muscle mass but gain fat. This is a condition called sarcopenia.”
James Watson and Francis Crick first discovered the structure of the DNA molecule in 1953. They discovered that the molecule has a shape specific to just that molecule. That shape can be best described as-
Answer:
A double helix
Explanation:
Density independent factors are
Answer:
Density-independent factor, also called limiting factor, in ecology, any force that affects the size of a population of living things regardless of the density of the population (the number of individuals per unit area).
Explanation:
26. Evolutionary relationships can be used to answer what kinds of questions?
Answer:
To build phylogenetic trees, scientists must collect character information that allows them to make evolutionary connections between organisms. Using morphologic and molecular data, scientists work to identify homologous characteristics and genes.
Explanation:
What is the role of adenosine triphosphate (ATP) within a cell?
A) Release carbon dioxide
B) Biological molecule that stores energy
C) Use glucose
D) Controls chemical reactions
Answer:
Its B. Biological molecule that stores energy