Answer:
b: chloroplasts are used in photosynthesis
Explanation:
not a: cause chlorophyll makes plants green not brown
not c: cause its used in photosynthesis
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1. What groups listed below have true cell walls?
A. algae
B. mycoplasmas
C. Gram-positive bacteria
D. fungi
E. protozoans
Answer:
D. Fungi
Explanation:
The fungal cell walls are made of complex & flexible structure that is made of glycoproteins, pigments chitin and α- and β- linked glucans
10. What changes during a chemical reaction between two compounds?
A. number of atoms
B. chemical bonds
C. total mass
D. total energy
Answer:
I think it's chemical bonds I'm not of that helped
The changes occurs in chemical bond during a chemical reaction between two compounds. The correct option is B.
What is chemical bond?A chemical bond is a long-lasting point of attraction among atoms, ions, or molecules which then allows chemical compounds to form.
Ionic bonds are formed by the electrostatic force between oppositely charged ions, whereas covalent bonds are formed by the sharing of electrons.
A covalent bond is the strongest bond in chemistry. In such bonding, each atom shares electrons that bind them together.
The bonds that hold molecules together break apart and form new bonds during chemical reactions, rearranging atoms into different substances.
Each bond requires a different amount of energy to break or form; without this energy, the reaction cannot occur, and the reactants remain unchanged.
Thus, the correct option is B.
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According to the text, what does the United States use the Fahrenheit scale to measure?
air temperature
low-pressure systems
high-pressure systems
humidity
Answer:
Low pressure systems
Explanation:
Because Fahrenheit numbers are high
true or false all cells living or dead can produce new living cells
Answer:
TRUE!
Scientist use dead cell embryos to produce living cells
All cells living or dead cannot produce new living cells. Only the living cells can produce new cells. Therefore, the given statement is false.
What is Cell division?Cell division is the process by which a parent cell divides into two new daughter cells. Cell division usually occurs as a part of a larger cell cycle in which the living cell grows and replicates its chromosome before undergoing division.
Cell division occurs in living cells through mitosis and meiosis. The cell division occurs through karyokinesis and cytokinesis. Cell division is a part of the cell cycle. Cell cycle is divided into different phases such as G1 phase, S phase, G2 phase, and M phase.
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I need help on this please I will give brainlist
Answer
B
Explanation:
biodiversity in the productivity of organisms if there is more it will recover faster
Is it carbohydrate, lipid, protein or nucleic acid?
HELPPPP!
Answer:
The answer is a Carbohydrate!
What is the protozoan and who is the first to observe one?
Answer:
Protozoa is an informal term for a group of single-celled eukaryotes, either free-living or parasitic, which feed on organic matter such as other microorganisms or organic tissues and debris. Anton van Leeuwenhoek was the first person to see protozoa, using microscopes he constructed with simple lenses. Between 1674 and 1716, he described, in addition to free-living protozoa, several parasitic species from animals, and Giardia lamblia from his own stools.
Which statement BEST explains why the Moon is visible from the Earth?
1) The Moon reflects light from the Sun.
2) The Moon is always lit up by the Sun for us to see.
3) The Moon reflects light from the Earth.
4) The Moon produces its own light through radiation.
What enables neighboring water molecules to hydrogen bond with eachother
Answer:
Hydrogen bond
Explanation:
The covalent bonds between the oxygen and the hydrogen atoms result from a sharing of the electrons. This is what holds the water molecules themselves together. The hydrogen bond is the chemical bond between the water molecules that holds the mass of molecules together.hope the answer was helpful, mention me as brainliest.What is the source of the high energy electrons for electron transport in
mitochondria?
Answer:
All of the electrons that enter the transport chain come from NADH and FADH 2start subscript, 2, end subscript molecules produced during earlier stages of cellular respiration: glycolysis, pyruvate oxidation, and the citric acid cycle.
Explanation:
What is the highest possible temperature?
What is the layer of myelin that surrounds an axon called?
Group of answer choices
1. Node of Ranvier
2. Perichondrium
3. Perimysium
4. Myelin sheath
5. Periosteum
5.
What can scientists measure to provide evidence that electrons can move from one energy level to another?
1.the angle of deflection of alpha particles
2.the number of electrons deflected by a thin sheet of gold foil
3.the energy absorbed or released by atoms
Answer:
2.the number of electrons deflected by a thin sheet of gold foil
Explanation:
Phosphatidate (phosphatidic acid) is a precursor in the synthesis of some lipids. Phosphatidate (phosphatidic acid) is a branched molecule. The core of the molecule is a three carbon chain. Carbon one is single bonded to two hydrogens, and a side chain. The side chain is oxygen single bonded to carbon. The carbon is double bonded to oxygen and an R 1 side chain. Carbon two of the core chain is single bonded 1 hydrogen and to oxygen which is single bonded to carbon. The carbon is double bonded to oxygen and single bonded to an R 2 side chain. Carbon three is single bonded to two hydrogens and a phosphate group. P O 4 2 minus. Phosphatidate (phosphatidic acid) Identify the lipids that have phosphatidate as a precursor.
Answer:
glycerolphospholipids, triacylglycerol, and cardoilpin.
Explanation:
PS: Kindly check the attached picture for the structure of Phosphatidate (phosphatidic acid).
The chemical compound known as Phosphatidate or the phosphatidic acid belongs to a group known as phospholipids. Phosphatidate or the phosphatidic acid can be prepared by using the chemical compound known as diacylglycerol kinase to phosphorylate diacylglycerol. Also, Phosphatidate (phosphatidic acid) can be prepared by making use of lysoPA-acyltransferase to acrylate lysophosphatidic acid[a phoshopipid derivative].
The lipids that have Phosphatidate (phosphatidic acid) as precursor are glycerolphospholipids, triacylglycerol, cardoilpin, phosphatidylinositol
TEHS 2020-2021
Section 1
3 of 103 of 10 Items
Item 3
The organelle shown consists of a stack of flattened membranes.
What is the primary function of this organelle?
attaching amino acids to tRNA molecules
attaching amino acids to tRNA molecules
long-term storage of molecules in the cell
long-term storage of molecules in the cell
production of large and small ribosomal subunits
production of large and small ribosomal subunits
repackaging proteins for export from the cell
repackaging proteins for export from the cell
TEHS 2020-2021
Section 1
3 of 103 of 10 Items
Item 3
The organelle shown consists of a stack of flattened membranes.
What is the primary function of this organelle?
attaching amino acids to tRNA molecules
attaching amino acids to tRNA molecules
long-term storage of molecules in the cell
long-term storage of molecules in the cell
production of large and small ribosomal subunits
production of large and small ribosomal subunits
repackaging proteins for export from the cell
repackaging proteins for export from the cell
TEHS 2020-2021
Section 1
3 of 103 of 10 Items
Item 3
The organelle shown consists of a stack of flattened membranes.
What is the primary function of this organelle?
attaching amino acids to tRNA molecules
attaching amino acids to tRNA molecules
long-term storage of molecules in the cell
long-term storage of molecules in the cell
production of large and small ribosomal subunits
production of large and small ribosomal subunits
repackaging proteins for export from the cell
repackaging proteins for export from the cell
What is the primary function of this organelle?
attaching amino acids to tRNA molecules
attaching amino acids to tRNA molecules
long-term storage of molecules in the cell
long-term storage of molecules in the cell
production of large and small ribosomal subunits
production of large and small ribosomal subunits
repackaging proteins for export from the cell
Question:
The organelle shown consists of a stack of flattened membranes.
What is the primary function of this organelle?
attaching amino acids to tRNA moleculeslong-term storage of molecules in the cell production of large and small ribosomal subunits repackaging proteins for export from the cellAnswer:
repackaging proteins for export from the cellExplanation:
The organelle consisting of a stack of flattened membranes is the Golgi apparatus.
The Golgi apparatus is like the packaging centre of the cell. It modifies, sorts, and packages proteins and from the endoplasmic reticulum to be stored in the cell or released outside the cell
Somebody help ????!!!!
what satellites are used to study expanses of the oceans surface
Answer:
The Geostationary Operational Environmental Satellite-16 (GOES-16) is the first of NOAA's next generation of geostationary weather satellites. Among the many missions of this satellite, it will collect ocean and climate data.
Explanation:
Using satellites, NOAA researchers closely study the ocean. Information gathered by satellites can tell us about ocean bathymetry, sea surface temperature, ocean color, coral reefs, and sea and lake ice. Scientists also use data collection systems on satellites to relay signals from transmitters on the ground to researchers in the field—used in applications such as measuring tidal heights and the migration of whales. Transmitters on satellites also relay position information from emergency beacons to help save lives when people are in distress on boats, airplanes, or in remote areas.
Answer:
A b c d?
Explanation:
Which of the following bones are considered to be the MOST proximal?
metatarsals
clavicle
ulna
olecranon
Answer:
Of the group of bones mentioned, the most proximal is the clavicle, which is part of the shoulder girdle.
Explanation:
Proximal is a reference term used in anatomy to indicate the structures that are closest to the center of the body.
The bones mentioned -clavicle, olecranon, ulna and metatarsals- are related to the function of the limbs. The clavicle is the closest bone to them, located between the neck and the thorax, on each side of the midline of the body.
Regarding the other options, other bones are distal, as they move away from the center of the body. In order from less distal to more distal they are found:
Olecranon, which is a bone eminence of the ulna, in the upper limb. Ulna or cubitus, which is part of the bones of the forearm. Metatarsals are the bones that form part of the foot.In humans, the dominant allele N causes an abnormal shape of the patella in the knee, whereas n is the recessive normal allele. A separate gene is concerned with finger length, and the dominant allele B causes abnormally short fingers, whereas b is the recessive normal allele. A study focused on people who have both abnormal patellae and short fingers. These individuals were N/n . B/b in genotype, having inherited the N allele from one parent and the B allele from the other parent. These N/n . B/b people mated with normal spouses, producing 40 progeny classified as follows: Normal 3 Abnormal knees and short fingers 2 Abnormal knees only 17 Short fingers only 18
Explain why the four types of children were found in the proportions shown.
Draw the chromosomes of (i) the parents of the N/n . B/b individuals; (ii) the N/n . B/b individuals; and (iii) the four types of children, showing the proper positions of the alleles based on the data above.
Answer:
1) Children were found in the proportions shown because the two genes are linked, they do not assort independently from each other
2) The chromosomes draw is in the attached file
Explanation:
Due to technical problems, you will also find the explanation for the first question in the attached files (PDF).
This diagram shows a plant cell. Which of these statements about plant cells must be true?
A)
A plant cell does not have a nucleus.
B)
Plant cells are all the same exact size and shape.
C)
A plant cell has many smaller vacuoles.
D)
A plant cell contains one large vacuole.
Answer:
I think the answer is a plant cell contains one large vacuole in its wrong because they have a nucleus I did not all plants have the same size or shape and they only have one large vacuole or sap vacoule hope it helps
Answer:
Its d
Explanation:
What are photosynthesis’s main inputs and outputs of matter and energy?
A cold front creates what kind of weather?
Answer:
A cold front creates nasty weather.
Explanation:
1. Rain
2. Thunderstorms
3. Gusty winds
4. Tornadoes
A local ecosystem includes a variety of grasses that grow on spongy soil. In spring, heavy rainfall and melted snow cover the soil in a few inches
of water. The ecosystem dries up by late summer. What term BEST describes this ecosystem?
A. pond
B. estuary
C. wetland
D. stream bed
Answer:
The correct answer is C. Wetland.
Explanation:
A wetland is a generic name for habitats located between hard ground and open water. Wetlands include, for example, wet and waterlogged shallow land, shallow lakes and seas, marshes, floodplain forests, and flowing waters.
Wetlands provide a breeding ground for many animal and plant species and can act as a buffer in flood areas and prevent severe and sudden floods. Rainfall, waters entering the catchment area, soil and ground elevation differences in the area, and water evaporation form the hydrological conditions of the wetlands. Wetlands are one of the most valuable and endangered habitats on Earth. Swamps, overgrown lakes, flood-prone areas, shallow bays, water-covered beach areas and mangrove beaches are all endangered habitats.
Can someone please answer these 3 for me
Answer:
It is positive feedback
How do chemicals made by organisms help establish and maintain a uniform distribution pattern?
Answer:
they in a current form is too unspeakable
The chemicals made by organisms help to establish and maintain a uniform distribution pattern which makes the individuals space out evenly and prevents unwanted enemy.
What is Uniform distribution pattern?In a uniform distribution, the different individuals are equally spaced apart from each other, as seen in the negative allelopathy where various chemicals kill off the plants surrounding sages. In a random distribution, individuals which are spaced at unpredictable distances from each other, as seen among plants that have wind-dispersed seeds on them.
The chemicals synthesized by organisms help to establish and maintain a uniform distribution pattern because it makes individuals to space out evenly in the area and prevents unwanted enemy.
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You remove pus from a wound and try to identify the pathogen multiple ways. The multi-locus gene tree showed your organism was most closely related to Streptococcus pyogenes but the 16S tree said it was most closely related to Streptococcus pneumoniae. Describe why this might be the case and other ways you should try to identify this organism.
Answer:
It occurs because phylogenetic analyses based on the 16S rRNA gene sequences may have insufficient resolution for distinguishing between closely related species
Another genomic method for streptococcal identification is whole-genome analysis (WGS)
Explanation:
The phylogenetic analysis of the highly conserved 16S rRNA gene sequences has recently been used to distinguish between prokaryotic species. However, this gene sometimes may show low resolution to distinguish between closely related species, and it has been suggested potential horizontal transference of rRNA genes. Moreover, multi-locus sequence analysis (MLSA) has also been used to identify species. MLSA analysis consists of analyzing simultaneously different genes and this technique has shown to have a high capacity for establishing relationships between species within a genus or genera within a family. Finally, whole-genome analysis (WGS) is the most powerful tool for distinguishing between closely species. WGS is a technique that provides a very high resolution which is based on the analysis of large-scale genome sequencing data generated by next sequencing generation (NGS) technologies.
Grapes growing on a vine are observed to shrink slightly during the day and increase in size at night. This is because:
a. developing fruits, such as grapes, transpire a lot of water to stay cool.
b. photosynthesis to produce sugar occurs in the light, but respiration and, therefore, the growth of new cells occurs mostly in the dark.
c. in leaves, phloem flow to growing sinks only occurs when the stomata are closed, because the transport capacity of the xylem is too small to supply water for both transpiration and phloem flow.
d. during the day, transpiration pulls on the water in the whole plant, causing the grapes to shrink slightly.
Answer:
b. photosynthesis to produce sugar occurs in the light, but respiration and, therefore, the growth of new cells occurs mostly in the dark.
Explanation:
Photosynthesis is the means by which green plants produce their foods by the use of sunlight, chlorophyll and carbon dioxide.
During the day, the grape make use of the process, photosynthesis, to get its sufficient food, thus the reason for the slight shrink. But at night, it respire well and new cells are produced. So that its size increase a bit.
One of the favorites to win a marathon to be held at sea level has been invited by a sponsor to train in Bolivia (very high altitude place) for three weeks before the race. The sponsor has promised to fly him to the race a day before the race. Based on your understanding of hemoglobin function, would you advice the athlete to accept the invitation or continue with his/her plans to train at low altitude
Answer: At high altitude the body will get prepared for marathon.
Explanation:
The human body is able to adapt the high altitude by long-term and immediate acclimatization. At high altitude the lack of oxygen is sensed at the carotid arteries. It causes the increase in rate of breathing or hyperpnea.
In addition at high altitude the heart beats faster, gradually the body will also compensate itself for low availability of oxygen and get prepared for marathon.
Which of the following is the fusion occurring in our sun?
a. lithium to beryllium
b. helium to hydrogen
c. hydrogen to helium
d. helium to carbon
Answer:
hydrogen to helium
Explanation:
I searched it up
The carbon atom I'm building has 6 electrons these electrons are found in levels the first level of the carbon has?