Answer:
With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After delivering the oxygen, the blood returns to the heart. The heart then sends the blood to the lungs to pick up more oxygen.
Which best describe and organisms niche?
Answer:
A niche is a role a species plays in the ecosystem. In other words, a niche is how an organism “makes a living.” A niche will include the organism's role in the flow of energy through the ecosystem. An organism's niche also includes how the organism interacts with other organisms and its role in recycling nutrients.
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What emits infrared radiation?
Question 1 options:
humans
non-living objects
anything that contains atoms
Answer:
same as other guy
Explanation:
So you can mark the other person :)
Anything that contains atoms emits infrared radiation. Therefore, option (D) is correct.
What is Infrared radiation?All objects, living or non-living, emit some amount of infrared radiation, which is a type of electromagnetic radiation with wavelengths longer than those of visible light. The amount and wavelength of the infrared radiation emitted by an object depends on its temperature, with hotter objects emitting more and shorter-wavelength infrared radiation.
This is the principle behind the use of infrared cameras and thermal imaging technology to detect and measure heat in a variety of applications, including night vision, medical imaging, and industrial inspections.
Learn more about infrared radiation, here:
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The water hyacinth is an invasive species that can spread extremely fast, blanketing a water surface in a very short period of time. It can limit boat traffic, swimming, and fishing, and it can deprive native plants and animals of sunlight and oxygen, thus reducing the local biodiversity. This situation demonstrates _______. a. how migratory patterns change in response to alterations in an ecosystem b. the effects of symbiosis c. the effects of local evolution or migration on an ecosystem d. how changes in biodiversity impact an ecosystem
1Answer:
The correct answer is - D. how changes in biodiversity impact an ecosystem.
Explanation:
The water hyacinth is an invasive plant species that rapidly grows and creates a thick layer over the water surface in almost every aquatic ecosystem. The growth of the layer of this species causes problems to the environment, ecosystem, humans, and other species.
These aquatic plants reduce the oxygen level and other nutrients from the ecosystem it is introduced and affect the biodiversity by increasing heavy metals and contaminants.
The layer of this plant inhibits photosynthesis that decreases sugar and energy production and blocks the boat and ship movements and economically as well.
Answer:
The correct answer is D
Explanation:
Which two elements are likely to share electrons?
According to a normal distribution, which organisms are most likely to survive?
Select all that apply.
A. Phenotypes that represent an extreme trait are more likely to survive.
B. Genotypes that represent an extreme trait are more likely to survive.
C. All genotypes have an equal chance of survival.
D. All phenotypes have an equal chance of survival.
Answer:
The organisms that are most likely to survive include:
C. All genotypes have an equal chance of survival.
D. All phenotypes have an equal chance of survival.
Explanation:
The above statements are the correct ones going by the fact that, in any given equal distribution that is normal, the genotypes and phenotypes are have equal chances of survival. Since both are equally distributed among each other.
What forms of energy are constantly being given off by the sun?
A. Light and heat
B. Light and wind
C. Heat and nuclear
D. Hydroelectric and nuclear
NEW ANSWER ASAP
Answer:
A
Explanation:
The sun produces two forms of eney.. which are mainly .. light and heat
There a four shared features of Chordates. Match the feature with the appropriate characteristic or function. Group of answer choices found between the digestive tract and nerve cord [ Choose ] in some embryos this develops into the central nervous system [ Choose ] in invertebrate chordates can be involved in filter food from water ingest through the mouth [ Choose ] in jawed fish this provides support for the jaw [ Choose ] provides skeletal support [ Choose ] is derived from the ectoderm
Answer:
1. Notochord.
2. Dorsal hollow nerve cord.
3. Pharyngeal slits.
4. Pharyngeal slits.
5. Notochord.
6. Dorsal hollow nerve cord.
Explanation:
A living system can be defined as the internal systems found within living organisms and how different materials circulate within these organisms.
Generally, these living systems are self-organized life forms and are known to be very much interactive with their surroundings or environment. Also, living systems are dependent on the flow of information, matter and energy at various levels.
Some examples of living systems in organisms are respiratory system, nervous system, circulatory system, and digestive system.
A chordate can be defined as an animal found in phylum chordata of the animal kingdom such as vertebrates, cephalochordates, tunicates, etc.
The four (4) shared anatomical features or characteristics of chordates includes the following;
1. Notochord: found between the digestive tract and nerve cord.
2. Dorsal hollow nerve cord: in some embryos this develops into the central nervous system.
3. Pharyngeal slits: in invertebrate chordates can be involved in filtering food from water ingest through the mouth.
4. Pharyngeal slits: in jawed fish this provides support for the jaw.
5. Notochord: provides skeletal support.
6. Dorsal hollow nerve cord: is derived from the ectoderm.
1. The bronchi and alveoli organs are part of which organ system?
(1 Point)
O Digestive System
O Excretory System
O Respiratory System
O Circulatory System
O Lymphatic System
Can you plz help?
Answer:
respiratory system
Explanation:
The bronchi become smaller the closer they get to the lung tissue and are then considered bronchioles. These passageways then evolve into tiny air sacs called alveoli, which is the site of oxygen and carbon dioxide exchange in the respiratory system.
Gel electrophoresis is used to separate DNA fragments on the basis of
their
1) Size
2) Color
3) Chromosomes
O4) Functions
Answer:
1. Size
Explanation:
In gel electrophoresis, dna is separated by size. The largest goes to the top and the smallest to the bottom. Hope it helps :)
How could a change in the DNA sequence of a single gene affect an organism?
The organism would likely no longer be able to produce offspring.
The gene could code for carbohydrates instead of proteins.
The function of a protein encoded by the gene could change.
DNA could change into RNA.
Previous
Answer:
C .
Explanation:
Please help no ones helping or giving real answers... will mark branliest
Answer:
B
A
D
Explanation:
How is the ocean biome and the tundra biome different with climate change?
Please help....anyone
Answer:
please take photos clearly and send please take another photo
POSSIBLE POINTS: 6.67
The HIV vírus contains an enzyme called reverse transcriptase which help the HIV virus embed its genome into the host cell's genome.
The function of reverse transcriptase is -
1.To produce protein from RNA.
2.To produce DNA from RNA.
3.To produce protein from DNA.
4.To produce RNA from DNA.
Answer:
2.To produce DNA from RNA.
Explanation:
hope this helps and sorry if it is not right
What is the difference between the molecules with a solid, liquid and gas?
Answer:
Gas are well separated with no regular arrangement.
liquid are close together with no regular arrangement.
solid are tightly packed- the particles are close together.
Hope this helps:)
Answer:
Solid: Molecules are tightly together to hold the shape.
Liquid: Molecules float around to fill the space of the container that they are in.
Gas: Molecules have no definite shape and move freely.
What does nCoV stand for ?
Answer:
nCoV is often used to indicate a newly recognized coronavirus prior to definitive identification and classification. It is sometimes used in combination with the year of identification.
Explanation:
Can cancer get cancer?
I came across something called hyper cancer that could be an answer to Peto’s paradox
Answer:
No, it cannot.
Explanation:
Of course, parts of tumors can become malignant, metastasized , etc., but it is not possible for cancer to grow on other cancer.
In pea plants, round seeds (R) are dominant to wrinkled seeds (), and yellow seed color () is dominant to green seed color (y). The
gene for seed shape and the gene for seed color follow the law of independent assortment and are not sex-linked. In a cross between
two RrYy parents, predict the fraction of offspring with round, yellow seeds.
Answer:
one fourth
Explanation:
7. (True Story) In Denmark, a husband and wife who had been unsuccessfully trying to have a
baby went to a fertility clinic. Sperm and eggs were collected from father and mother, and
combined in a petri dish, creating several "test-tube babies". These babies were implanted in the
mother and 9 months later she ſlelivered twins, one with lightly pigmented skin and one with
darkly pigmented skin. Because this seemed strange, a DNA test was conducted and it was
found that both children were related to the mother, but only the light skinned child was related to
the father. How can this be explained? (Hint, there was no infidelity)
Answer:a
a possible explanation for this occurrence is that a test tube or dropper was accidentally used repeatedly without being sterilized, causing sample cross-contamination. DNA in this test case did not confirm that the father of the second child was another client of the fertility clinic who had never met the mother...therefore this is a possibility.
Explanation:
Scientists in different parts of the world repeat an experiment several times and get the same result. Which of these is the most likely reason why experiments are repeated to produce the same result? (2 points)
a
to make results non-testable
b
to make results non-observable
c
to make conclusions elaborate
d
to make conclusions reliable
describe the following interms of water cycle
(energy sources)
(carrier of nutrients)
Answer:
Of the many processes involved in the water cycle, the most important are evaporation, transpiration, condensation, precipitation, and runoff.
Explanation:
1. The conversion of liquids into gas is termed
as Evaporation.
2. The conversion of Gas into liquids is called
Condensation.
3. The falling of water droplets in the form of
rain after condensation of clouds is called
Precipitation.
4. The cyclic exchange of water into its different
stages is called Water Cycle.
5. The amount of water vapor present in the
atmosphere is called the Humidity.
What is the goal of the cell cycle? *
5 points
To maintain cell homeostasis by maintenance of the cell membrane
Regulation of cellular activities related to energy conversion
Provide the cell with the needed nutrients for surival
The correct replication of DNA, followed by the correct division of DNA, to create two
identical daughter cells
Answer:
The correct replication of DNA, followed by the correct division of DNA, to create two identical daughter cells
Explanation:
The most basic function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells.
Hope this helped!!!
Binomial nomenclature is a system for
what? Fastttttplzzz
Answer:
Taxonomy (classifying organisms)/giving organisms a two-part name.
Explanation:
An organism's name consists of a genus and species. This is a two-part name. For example, we are h0mo sapiens. Hope this helps :)
Pls someone help me!!
How can Punnett squares be used to determine an organism's genotypic and phenotypic probabilities?
How can Punnett squares be used to determine an organism's genotypic and phenotypic probabilities?
⭐A Punnett square allows the prediction of percentages of phenotypes in the offspring of a cross of known genotypes. A Punnett square can be used to determine a missing genotype based on other genotypes involved in a cross.⭐----------------------------------------------------------------------------------------------⭐
BRAINLYMENTALMENTE1. Animals are _____ and hence they depend on other organisms (plants and other
animals) for their food.
Animals are consumers and hence they depend on other organisms (plants and other animals) for their food.
Before the 1st cell division, describe what the chromosomes appear to do.
Answer: The chromosomes condense and the spindles assemble, then each set of chromosomes is surrounded by a nuclear membrane, and then the parent cell splits into two complete daughter cells.
Explanation:
HELP
If a gene sequence is ACGTTTACAA, what will be the corresponding mRNA sequence?
Answer:
D UAGGCUAA
Explanation:
Why is the structure of a
nucleosome so important?
Answer:
In eukaryotes, nucleosomes play major roles in chromatin organization and gene expression
Explanation:
In eukaryotic organisms, chromosomal DNA is packaged with the help of proteins called 'histones' to form chromatin. The nucleosomes represent the basic packing units of the chromatin. Each nucleosome is composed of a histone octamer containing each two histones H2A, H2B, H3 and H4 wrapped around by 147 bp of DNA. Nucleosomes act as scaffolds to form higher-order chromatin structures (i.e., 30-nm chromatin fibers and condensed chromosomes). Moreover, nucleosome histone proteins can be chemically modified at defined amino acid residues, and thus nucleosomes also provide an epigenetic layer of information that can promote or inhibit gene expression.
10 pounds of seal for a killer whale to gain one pound (10:1). how many pounds of seal will it have to eat to gain 20 pounds of killer whale?
Answer:
200
Explanation:
20 times 10 is 200 easy
Answer:
200
Explanation:
Multiply 10 by 20 and you'll get 200.
10 pounds = 1 pound gained
? = 20 pound gained
10 : 1
? : 20
1 x 10 = 10
20 x 10 = 200
Hence, the killer whale will have to eat 200 pounds of seal to gain 20 pounds.
hope this helps and is right; p.s. i really need brainliest :)
I NEED HELP ON THIS HURRY
Answer:
hHSS (human Hepatic Simulator Substance)
Explanation: