Answer:
It is the iron atom that binds oxygen as the blood travels between the lungs and the tissues. There are four iron atoms in each molecule of hemoglobin, which accordingly can bind four molecules of oxygen.
why chlorophyll b is not found in alll eukaryotes
Answer:
All plants, algae, and cyanobacteria which photosynthesize contain chlorophyll "a". A second kind of chlorophyll is chlorophyll "b", which occurs only in "green algae" and in the plants.
18. Does the blood of the mother and the baby ever mix?
Answer: No
Explanation: Usually a mother and baby's blood do not mix while the baby is in the womb. The mother's blood runs alongside the placenta, and the nutrients needed by the baby are absorbed and transferred to him/her.
Answer:
yes it does
Explanation:
because the mother is one half of the whole required to make a child
hello humans ~
Living organisms which are invisible to the niked eye are called _________ .
Particles
Molecules
Microorganisms
Macroorganisms
Answer:
Microrganisms
Explanation:
They are called microorganisms because they have to be seen with a microscope :)
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Answer:
MicroorganismsExplanation:
Living organisms which are invisible to the niked eye are called MicroorganismsThe picture above represents a small section from the periodic table. Which of the elements has chemical properties most similar to element X?
A.
Element 1
B.
Element 2
C.
Element 3
D.
Element 4
The elements which has chemical properties most similar to element is element 1
Option A is the only correct answer
Which of the following organisms is located only in the 3rd trophic level of the soil food web? a. bacteria b. fungi c. protozoa d. nematodes please select the best answer from the choices provided a b c d
The correct answer is protozoa the following organisms are located only in the 3rd trophic level of the soil food web.
The trophic level is the first second and third trophic level. Free-living protozoa occupy the trophic levels as primary consumers. Nematodes and grasshoppers are also there, It has producers, consumers, decomposers.
What are protozoa in soil?Soil protozoa consist of bare amebae, testate amebae, flagellates, ciliates, microsporidia, and sporozoans. So far, approximately 1600 species were recorded from the soil, lots of that have unique variations to the soil environment. Very likely, the genuine quantity of soil protozoa is lots higher, this is 4000 or greater species.
Thus it is clear that protozoa are located only in the 3rd trophic level of the soil food web.
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How are molecules ,compounds and pure substances related
Answer:
They are all made of smaller substances, basically like the finishing products of building blocks.
I hope this helps!
Two cats have different parents. One cat has stiff fur, and the other cat has soft fur. Why do the cats have different fur softnesses?
a
The cats have different versions of the gene for fur softness. The genes are softer in the fur of one of the cats.
The cats have different versions of the gene for fur softness. The genes are softer in the fur of one of the cats.
b
The cats have different versions of the gene for fur softness, which instruct for different proteins that connect in different ways to make different kinds of fur.
The cats have different versions of the gene for fur softness, which instruct for different proteins that connect in different ways to make different kinds of fur.
c
Each cat has different fur softness because offspring from different parents will have different fur softness.
Each cat has different fur softness because offspring from different parents will have different fur softness.
d
Each cat has different traits for fur softness because they have different versions of the gene for fur softness that connect together to make different kinds of fur.
Answer:
according to my search, the answer is C.
Explanation:
some breeds and types of cats have inherited thicker or softer coats because they are used to colder climates. Some cats also inherit the softness of their fur from their parents. Certain breeds, for example, the Ragdoll Cat, are ragged and hairy and have thick coats.
How many single chromosomes are in a human zygote?.
Answer:
46 chromosomes
What’s the answer to this?
dna unzips
Explanation:
Second exposure to the pathogen
A-leads to very rapid production of antibodies
B- alerts memory cells to divide quickly
C - leads to the destruction of the pathogen before the individual feels infected
D - all of the above
Carbohydrate stored in the muscles of a marathon runner is converted to available glucose during a race. This conversion is
controlled by the hormone
(A)Adrenalin
(B)insulin
(C)thyroxin
(D)testosterone
how does gel electrophoresis separate DNA? and how is genetic engineering used to treat genetic diseases??
Answer:
How does gel electrophoresis separate DNA? :
The technique of gel electrophoresis is used to separate DNA fragments based on their size. DNA samples are placed into wells (indentations) at one end of a gel and pulled through using an electric current. Negatively charged DNA pieces gravitate toward the positive electrode.
How is genetic engineering used to treat genetic diseases? :
Gene therapy aims to rectify genetic abnormalities and thereby prevent or treat hereditary disorders by modifying genes. Genetic engineering tries to tweak genes to improve an organism's capabilities beyond what is normal.
Explanation: See above
Hope this helps you, friend.
When an action potential arrives at an axon terminal at a neuromuscular junction, it causes the opening of _______ channels, increasing the concentration of this ion within the cell, which ultimately triggers fusion of neurotransmitter vesicles with the presynaptic cell membrane.
Answer:calcium
Explanation: don't have one
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Lionfish are native to the tropical waters of the Indo-Pacific. What conclusions can be made about the impact of ocean warming on the range of lionfish and, therefore, on biodiversity?
Rising ocean temperatures have expanded the range of the lionfish; with little competition, it consumes smaller fish, reducing biodiversity.
Global warming has forced the lionfish to warmer waters where it is able to mate with native fish, increasing biodiversity.
Climate change has restricted the habitat of lionfish. It has become an endangered species, reducing biodiversity.
Lionfish thrive in high carbon dioxide environments; they eat all of the native species in the area, reducing biodiversity.
Answer:
Rising ocean temperatures have expanded the range of the lionfish; with little competition, it consumes smaller fish, reducing biodiversity.
Explanation:
As ocean temperatures have increased, the range of the lionfish has increased. As a top predator, it has little competition for eating smaller fish, causing massive destruction by eating endangered fish, reducing biodiversity.
True or false: The carrying capacity of a given geographic region for a single population can change over time.
Answer:
True
Explanation:
People reproduce and die
Which type of mutation plays the most important role in increasing the number of genes in the gene pool?
Changes in nucleotide sequence that lead to natural selection removing the allele from the population
Point mutation with a change in one base resulting in a harmful phenotype
Rearrangement of gene loci due to deleting or disrupting chromosomes
Gene duplication allowing for mutations to accumulate and expand the genome over generations
Answer:
the answer is D i believe.
Explanation:
I believe so, dont take my word 100% on it though.
Which of the following might occur if people fail to conserve water? a. Increased sewage system failures b. Increased numbers of natural pollution filters c. Increased water supply d. Increased wildlife habitats.
Answer:a
Explanation:edge 2022
If people fail to conserve water then there will be increased sewage system failures.
Water conservation entails keeping water from assets like rain, wastewater, and snow melting using it for family and agricultural activities. Increased sewage gadget disasters can not preserve water as this water comes from toilets, sinks, bathing, laundry, etc. That is wastewater and contaminants ought to be eliminated from it to make it appropriate for reuse. Failure of sewage gadget will now no longer be capable of taking away pollution from this water and therefore this can not be reused.What is a water sewage system?
These are 3 types of water sewage systems: separate system combined system partially separate system.
Hence concluded that if people fail to conserve water then there will be Increased sewage system failures.
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The digestive system doesn’t work alone. After nutrients are absorbed in the small intestine, they pass through other body systems. Drag the correct words to complete the sentences.
[respiratory] [lymphatic] [endocrine] [circulatory]
Nutrient distribution depends on the[ ? ]
system to deliver nutrients to cells around the body through the bloodstream. The [ ? ]
system also plays a part by supplying the oxygen used in cellular respiration. Respiration is the process of breaking down nutrients for energy.
Answer:
circulatory, respiratory
Hope this helps!
The endosymbiotic theory explains the:____.
a. Evolutionary relationship between animals, plants, and fungi.
.b Origins of mitochondria and chloroplasts in eukaryotes.
c. Method of reproduction in protists.
d. Origin of the first prokaryotic cells.
Answer: The endosymbiotic theory explains the Origin of the first prokaryotic cells
D. Origin of the first prokaryotic cells
Explanation:
Which process could be used by breeders to develop tomatoes with a longer shelf life and to develop cows with increased milk production
Answer:
genetic engineering
Explanation:
I hope this helps and have a good day
hello humans ~
Which among the following organelles synthesizes lipids?
A. Smooth Endoplasmic Reticulum
B. Rough Endoplasmic Reticulum
C. Golgi apparatus
D. Lysosome
Answer:
Smooth Endoplasmic ReticulumExplanation:
Smooth Endoplasmic Reticulum synthesizes lipids.What can a deficiency of growth hormone during bone formation cause?.
Answer me:
1. Identify the correct statement about the magma.
A. Typical magma temperatures exceed 10,000 degrees Celsius.
B. Magma always comes from the lower mantle.
C. Magma never contains dissolved gases.
D . Magma forms after magma melts
2. Very explosive volcanoes tend to have___________
A. Gases rich in sulfur dioxide
B. Low viscosity magma
C. gentle, sloping sides
D. High viscosity
3. Which of these statements is correct?
A. When a rock melts different minerals melt at the same temperature
B. If water is present, rocks will melt at a higher temperature.
C. Under high-pressure rocks melt at a lower temperature
D . Magma that crystallizes Form igneous rock.
4. It is the magma that is usually found at subduction zones.
A. Andesitic Magma
B. Basaltic Magma
C. Rhyolitic Magma
D. A & B
5. Which types of magma contain the least amount of SiO2?
A. basaltic
B. Candesitic
C. felsic
D. rhyolitic
6. What is molten rock that has formed deep within the Earth?
A. Hot Spot
B. Lava
C. Magma
D. Volcano
7. As the temperature of lava increases, it/s ________
A. begins to harden
B. viscosity decreases
C viscosity increases
D. sit can flow a much short distance
8. What makes magma different from lava?
A. color
B. composition
C .location
D . temperature
9. The composition of magma determines its _____.
A. color
B. darkness
C. viscosity
D. none of the above
10.Which one of these does NOT affect the temperature at which magma forms?
A. water
B. pressure
C.viscosity
D. Composition of material
_____________________
B. True Or False
1.. Lava with high silica content is less viscous to travel far and tends to break up as it flows.
2. Magmas with high silica content are more viscous than those with low silica content.
3.Lava with less silica content has a high viscosity that can travel a great distance, forming a thin sheet.
4. Lava with a low amount of gas as it rises has a low viscosity that it piles up at a vent resulting in a dome.
5.. Silica is a compound of silicon (SiO2)
6. The characteristic of magma that mainly determines its explosiveness is silica content.
7.A thick layer of volcanic ash can be heavy enough to collapse the roofs of buildings because ash consists of tiny fragments of rocks that become heavy as they pile up.
8. Lava with a low amount of gas and high silica content is very viscous and does not flow out at all
9. Lava with high temperature has high viscosity.
10. The viscosity of magma increases with temperature.
Answer:
Typical magma temperatures exceed 10,000 degrees Celsius. Magma never contains dissolved gases. Magma forms when rocks melt. Magma always comes from the lower mantle.
Which of these functions of life refers to
maintenance of an internal balance?
Answer:
Answer is homeostasis. I hope my May help you
what is leucosolinea?
Answer:
Leucosolenia is a small, delicate branching, colonial marine sponge. It grows in shallow water below low tide mark on sea shore rocks where wave actions in intense and is not found in calm water. Leucosolenia is found abundantly along the northern Atlantic coast and is supposed to be very sensitive to external conditions.
Which renewable energy resource comes from burning plant material.
Answer:
Biomass
Explanation:
Biomass is renewable organic material that comes from plants and animals. Biomass was the largest source of total annual U.S. energy consumption until the mid-1800s. Biomass continues to be an important fuel in many countries, especially for cooking and heating in developing countries
When the size of population increases and people own..... more goods there is an effect on
Pls help me with this question
Answer:
All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages. The major arthropod classes can be separated by comparing their number of body regions, legs, and antennae.
Answer:
Segmented body, Open circulatory system.
Explanation:
Which of the following is not a possible consequence of surface mining? a. increased pollution b. improved ecosystem health c. destruction of flora and fauna d. erosion of soil
Among these, a not possible consequence of surface mining "B" is improved ecosystem health.
What is surface mining and how does it affects the environment?Surface mining is a method of extracting minerals near the surface of the Earth. The three most common types of surface mining are open-pit mining, strip mining, and quarrying.
The environmental impact of mining includes erosion, formation of sinkholes, loss of biodiversity, and contamination of soil, groundwater, and surface water by chemicals from mining processes. The environmental effects of surface mining include;
Habitat destructionSoil erosionAir pollution from dust particlesAll surface mining techniques negatively affect the environment, though some methods are more damaging than others.
Thus, improved ecosystem health is not a consequence of surface mining.
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Answer:
The answer is B
Explanation:
:)
When the color of the light changes, the number of light red kidney beans will also change Write a hypothesis about the effect of the red light on the population. Use the "if . . . then . . . because . . ." format, and be sure to answer the lesson question: "How does natural selection change the phenotypes within a population over time?"
Answer: If red light is shined on a population of red walking beans then they would not be as red as when started because they need light to survive and red light is present but they reflect it until they need it to survive.
Mutations that naturally occur can change phenotype and if it is beneficial to the species then it will be past on if it is no then it will die before passing it on.
Answer:
Explanation:
Natural Selection is defined as the evolutionary process in which organisms better suited to the environment tend to survive and reproduce.
If red light is shined on the population of red walking beans, then the population of light red kidney beans will increase because they will be camouflaged in the light and would not be able to see. The red light will make the beans invisible to other organisms and animals, which increase the population and survival rate of the beans.
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