Answer:
Gas (Chemical Energy)
Explanation:
Cars run on gas. They convert the chemical energy in the gas to motion. This is where the system gets its energy. (Unless your system is the car and it moves beacuse is on a hill in which case gravitational potential energy transfers energy to this system).
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
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.
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:
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:
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.”
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.
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.
2/3 divided by 1/6
Answer:
4
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:
Question 1 of 10
In a cell, the two strands of a double helix of DNA do not unwind as expected,
which causes DNA replication to be blocked. What is most likely
dysfunctional in this cell?
A. Okazaki fragments
B. Helicase
C. DNA polymerasel
D. RNA primer
SUBMIT
It’s not RNA primer or DNA polymerase I got it wrong twice
it’s B; helicase.
just took the quiz.
What is unique about the
protein channels which allow molecules to travel by facilitated diffusion?
A. Each channel only allows one type of molecule to pass through it
B. The channel modify the molecules DNA as they pass-through
C. The channels move molecules very quickly
Please help!!!! 10 points
Answer:
A. Each channel only allows one type of molecule to pass through it
Explanation:
Transmembrane proteins from channels spanning the membrane that create hydrophilic tunnels. They only enable diffusion across the protein channel into the cell, for their target molecules.
These are highly specific-they only allow one type or group of related molecules to use the channel. These are types of transmembrane channels, embedded within the membrane, help to maintain selective permeability, while simple diffusion of other small, uncharged molecules can readily occur.
Which techology allowed scientists to discover the first deep ocean hydrothermal vents?
A. a piloted deep clean vessel
B. ROV (remotely operated vessel)
C. SCUBA gear
D. satelites
Answer:
I hate this problem
Explanation:
It is v
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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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.
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
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
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:
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
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:
3. What does the heading
represent?
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 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
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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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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Which is it?? DNA, RNA, or Both??
1. Single-Stranded
2. Double-Stranded
3. Nitrogen bases
4. Thymine
5. Uracil
6. Double Helix
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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Adaptations that help an organism survive appear quickly. True or False? And why
Answer:
false
Explanation:
is not worth it to do that
According to the theory of natural selection, features that may be passed down help animals adapt to their surroundings more successfully than their kin.
What condition that make organism adaptive?Adaptations are passable traits that improve an organism's capacity to endure and procreate in a given environment. An organism can manage in harsh settings, locate food and water, and protect itself by adapting.
This is the outcome of a process called natural selection. A species' nature gradually changes as a result of natural selection in order for it to fit into the niche.
If a species becomes extraordinarily well adapted to its habitat and the environment does not change, it can survive for a very long time before going extinct.
Therefore, it is false that, Adaptations that help an organism survive appear quickly.
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What happens to the atoms in a scoop of ice cream as it melts? They decrease in temperature. They lose energy. They vibrate faster. They are held tightly in a fixed position.
Answer:
they vibrate faster
Explanation:
Answer:
They Vibrate Faster
Explanation:
Did it on Edge 2020
-Its C
give one other process that use oxygen
Answer:
breathing
Explanation:
when you breath you breath in oxegyn
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.