Answer:
the average percentage of energy lost as heat
Explanation:
An energy pyramid (also called trophic pyramid) is a graphical representation that exhibits how energy flows at each trophic level in a particular ecosystem. In an energy pyramid, it is possible to determine how much energy is available at each trophic level and how energy flows from producers (e.g., photosynthetic plants) to primary consumers (e.g., herbivores), then from primary consumers to the next trophic level (e.g., carnivores), and so successively to all major trophic groups (e.g., higher carnivores). During this chain, energy is lost as heat when it is transferred to the next level, and the average percentage of energy lost increases at each trophic level, thereby less and less energy is available to major trophic groups.
I need with this question please
Which method of waste treatment is LEAST harmful to the environment?
Answer:
c
Explanation:
because burning burying and landfill are all harmful
How do you measure the area of the peepal leaf?Explain
Answer:
Lay the leaves to be measured on a 1-cm grid and trace their outlines. Count the number of square centimeters. Estimate the area of the partial squares. ... Do not include the area of the stem (petiole) in your calculations.
When a muscle relaxes: Question 10 options: crossbridges form and muscle extensibility returns the muscle to rest length. crossbridges form and muscle elasticity returns the muscle to rest length. crossbridges stop forming and muscle elasticity returns the muscle to rest length. crossbridges stop forming and muscle extensibility returns the muscle to rest length
Answer:
When a muscle relaxes,
crossbridges stop forming and muscle elasticity returns the muscle to rest length.
Explanation:
Relaxation occurs when stimulation of the nerve stops. Calcium is then pumped back into the sarcoplasmic reticulum breaking the link between actin and myosin. Actin and myosin return to their unbound state causing the muscle to relax. Alternatively relaxation will also occur when ATP is no longer available.
In a normal conception (fertilization of egg and sperm), due to the processes crossing over and independent assortment:
Answer: Hello your question is missing below is the intended question
Which of the following supports genetic diversity?
A- Independent Assortment
B-independent assortment and crossing-over support genetic diversity
C-Independent assortment, crossing-over, and fertilization of an egg by sperm support genetic diversity
D-Fertilization of an egg by a sperm
E-Crossing-over
answer :
Independent assortment, crossing-over, and fertilization of an egg by sperm support genetic diversity ( C )
Explanation:
The processes that supports Genetic diversity are ; Fertilization of egg and sperm, Independent assortment and processes of crossing over
Genetic diversity is the simply the variations seen in genetic composition among a population or specie.
Question 3 of 10
How many hydrogen atoms are present in each water molecule?
A. 3
O B. 2
O
C. 4
D. 1
SUBINT
MCQ ...help me........It's a last question
Which wound usually involves ears, fingers, and hands, and results in tearing or pulling off of a flap of skin
Answer:
Avulsion.
Explanation:
Human bite wounds are blunt wounds, sometimes with partial or total avulsion (ear, lips, nose, hands) and with intense contamination. An avulsion is a complete tear of the skin and subcutaneous tissue. It does not allow the approximation of edges. It presents moderate to abundant hemorrhage and is accompanied by the exposure of underlying tissues (bone, tendon). The tear can be complete or partial; in the latter case, a connection or bridge is preserved between the torn tissue and the rest of the body.
Identify and describe how bacteria, hormones, and nerves influence the health and activities of the GI tract
Answer:
The GI health is supported by a varied and rich population of bacteria. The GI processes are controlled by the coordinated efforts of the hormonal system and the neurological system. Digestion and absorption together break up diets into bodily nutrients. A healthy GI system requires a balanced diet, sufficient relaxation, and frequent physical activity, to perform best.
Explanation:
Bacteria along the GI tract have a wide range of possible health benefits, including the production of vitamins, ion absorption (Ca, Mg, and Fe), pathogens protection, histologic development, improved immune systems, and fermentation of "no-digestible food" Bacteria have a number of potential functions.
During the digestion and absorption process hormones control the different digestive enzymes, which are secreted in the stomach and bowel. In reaction to the consumption of food, for example, the hormone gastrin induces stomach acid output. The somatostatin hormone prevents stomach acid secretion.
A colour wheel consists of THREE colours , red, blue, and green, EACH occupying an equal area. If the wheel is spun at a very high speed, the colour seen would be Cyan Magnetta Yellow White
and number 3
What is the main function of the structure that is identified as A in the picture above?
It anchors the plant.
It produces food.
It absorbs nutrients.
It supports the plant.
Answer:
It supports the plant.Explanation:
Below are the three main organs that make up the plant body.
The parts of a plant are labeled. The top green leaf part is labeled A. The stem is labeled B. The part that is underground is labeled C.
What is the main function of the structure that is identified as B in the picture above?
It anchors the plant.
It produces food.
It absorbs nutrients.
It supports the plant.The main function of the structure identified as A in the picture is to synthesize the foods of the plants, which is the second option, as plant leaves are essential for the survival and growth of plants, enabling them to produce food, exchange gases, and regulate water balance.
What is the plant leaves function?Leaves are the primary site for photosynthesis, the process by which plants use sunlight, water, and carbon dioxide to produce food (glucose) and oxygen. Leaves also play a crucial role in gas exchange, allowing plants to take in carbon dioxide and release oxygen during photosynthesis and release carbon dioxide and take in oxygen during respiration. Leaves are responsible for transpiration, the process by which water is absorbed by the roots and transported through the plant to the leaves, where it is released into the air through tiny openings called stomata.
Hence, the main function of the structure identified as A in the picture is to synthesize the foods of the plants, which is the second option.
Learn more about plant leaves function here.
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What is meant by "lowering the
activation energy" ?
A. Less energy is required to start the reaction
B. Less energy is released by the reaction
C. Less energy is absorbed by the reaction
Links and random answers will be reported
Answer:
a
Explanation:
activation is the start
Answer:
a
Explanation:
The great hornbill and the toucan both eat the same fruit, insects, and nuts. They both live in the rainforest. Their large bills function to get food and also as warning coloration. Which of the following is a limiting factor to the toucan population?
overlapping breeding seasons
bill coloration
genetic variability
competition
The correct answer is D. Competition.
Explanation
A limiting factor is a term that refers to the scarcity factor of a resource that limits the development and evolution of a specific species or process. According to what is described in the question, it can be inferred that the limiting factor of toucans is competition because the great hornbill lives in the same tropical forest as the toucan, it feeds on the same foods as the toucan: fruit, insects, and walnuts. So, competition for the same resources is a limiting factor for toucans since the absence of food can affect their development. So the correct respect is the D. Competition.
can someone go to my profile and write the definitions in your own words that I posted today? there are 4 of them and I can give you brainliest for each of them since there would be more than one person.
Thank you!
Answer:
ok i go
Explanation:
your experience is so so good and your frofile
ILL GIVE BRAINLIST PLS HELP
Answer:
1.In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.
2.Survival of the fittest is a simple way of describing how evolution (the process by which gradual genetic change occurs over time to a group of living things) works. It describes the mechanism of natural selection by explaining how the best-adapted individuals are better suited to their environment.
Betty's metabolism is unusually sluggish. There is MOST likely an abnormality with Betty's _____ gland.
Answer: Betty's metabolism is unusually sluggish. There is MOST likely an abnormality with Betty's thyroid gland.
Color blindness is a recessive sex-linked human trait. If a color-blind father and a mother with normal color vision have a color-blind son, what must be the mother's genotype?
A. XNXn
B. XNXN
C. XnYn
D. XNY
Answer:
A. XNXn
Explanation:
looks like it's a 50% chance of color blindness
which is used to make many copies of DNA?
Answer:
Polymerase chain reaction (PCR) is used to make many copies of DNA .
hope it is helpful to you.
Answer:
Polymerase chain reaction (PCR) is used to make many copies of DNA .
hope it is helpful to you.
There are 3 basic structural types of joints: fibrous, cartilaginous, and synovial. If a joint does NOT move, you can assume that it's either ___ or ___. (Choose 2).
Answer:
The correct answer is - fibrous, cartilaginous.
Explanation:
In the body, there are joints named after the type of tissue attached to them and these joints are:
1. fibrous joints - these are connected with dense connected tissues and called immovable or fixed joints.
2.cartilaginous joints - these are joined by cartilage tissue. These joints are also not able to move freely.
3. synovial joints are known as movable joints and can move freely. These are present in a fluid-filled capsule for better movement.
Summarize what responsibilities scientist have and why:
what determines the rate of materials going into a cell and wastes leaving the cell?
Answer:
A
Explanation:
as the cell volume increases , its ability to exchange materiala across the cell surface increases
A seedling sprouts and its roots crack apart concrete, it is a type of _________ weathering. A. Organic B. Physical C. Chemical D. Biological Hurry!
Answer:
The correct answer is - D. biological.
Explanation:
Wheathering is the process of breaking of the rocks or soil. It can be of different types on the factors such as chemical wheathering, physical wheathering and biological wheathering.
When a seed fall on to on a rock surface its sprouts, push roots into cracks in the rock or concrete. As the roots of plants develop, they secrete weak acids that slowly dissolve rock around the roots.
It is a type of biological wheathering.
In a population of mole-rats, some have a little larger teeth and longer claws. If those particular mole-rats survive because they can dig quicker and the others are preyed on and do not survive to reproduce, what will eventually happen in subsequent generations?
Answer:
One increase in population and the other decrease.
Explanation:
The population of the rats having little larger teeth and longer claws increases as compared to those rats having small teeth and shorter claws because the rats can escape from their predators and survive in that environmental conditions. The population of rats having small teeth and shorter claws extinct in the end due to no reproduction and preyed by the predators and dominated by the population of the rats having little larger teeth and longer claws due to their features.
Which is not an affect of testosterone in males?
A.Increase muscle mass
B.Change the voice to a higher pitch
C.The thickness and distribution of hair follicles on the body and head
D.Sperm production
Answer:
the answer is c
Explanation:
not much else to explain
About 10,000 years ago, around the time of the last ice age, Cheetahs nearly became extinct. Recent efforts have helped them recover, but cheetahs alive today have nearly identical DNA. This is a result of:
Answer:
smaller gene pools for breeders to work with
Explanation:
when the cheetahs almost went extinct there were less viable males/females for the cheetah breeders to work with leading to smaller less diverse gene pools
When describing a group of animals, you speak about an ancestral species and some but not all of its descendants. This is an example of a _____. Group of answer choices monophyletic group polyphyletic group paraphyletic group
Answer:
This is an example of a paraphyletic group.
Explanation:
Paraphyletic groups is a group that contains only part of the descendants of a common ancestor. A group is constituted as paraphyletic when one or more holophyletic groups are subtracted from a clade (evolutionary branch). Traditional classifications are loaded with paraphyletic groups, such as invertebrates, pteridophytes, opposites. In each of these cases the group is defined by the exclusion of a smaller group within a larger one. An example is the reptiles are a paraphyletic group, since when we refer to them we are excluding mammals and birds even though they are taxa that evolutionarily descend from reptiles.
a penny is tossed and comes up heads 7 out of 10 times. Is the probability that it will be heads on the next toss 70%? Why or not?
Answer:
I think it will because when you express 7/10 as a fraction it will result to 0.7, meaning the probability between 0 and 1 will be 0.7, therefore to express 0.7 as a fraction the answer will be 70%..
sorry if it's wrong
An anaerobic metabolic pathway that results in the production of two net ATPs per glucose plus two pyruvic acid molecules is glycolysis True False
Answer: True.
Explanation:
Glycolysis is a process that occurs in the cell cytoplasm, in which a 6-carbon glucose molecule is cleaved into two 3-carbon pyruvate molecules. Two molecules of ATP (Adenosine triphosphate, a molecule that acts as a source of energy to perform biological processes.) and two molecules of NADH are also obtained. It is a metabolic pathway responsible for oxidizing glucose in order to obtain energy for the cell. It consists of a series of consecutive enzymatic reactions, and when pyruvate is obtained, it continues to be used in other metabolic pathways in order to continue delivering energy to the organism. Glycolysis takes place both in the absence and presence of oxygen, so it is defined as an anaerobic process. Therefore, the final destination of the products obtained in glycolysis will depend on the conditions of the environment in which it is found, which will determine the metabolic pathway to be followed (i.e., whether oxygen is available or not). In the absence of oxygen, glucose will not be completely oxidized to carbon dioxide and water, generating fermentative products (lactic acid in animals and ethanol in yeast) producing only two net ATP molecules. In the presence of oxygen, the pyruvate obtained during glycolysis enters the Krebs cycle (to produce energy in usable form as ATP or GTP) and then undergoes oxidative phosphorylation (the process by which ATP is formed as a result of electron transfer from NADH or FADH2 to oxygen via a series of electron transporters) producing a net gain of between 36-38 ATP.
PLEASE if i dont get this right imma fail :(
DNA samples from four different organisms were analyzed using a procedure that separates the DNA in each sample by size.
DNA fragments separated by size
DNA fragments separated by size
What does band X represent?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Largest fragment of DNA that traveled the fastest
(Choice B)
B
Smallest fragment of DNA that traveled the slowest
(Choice C)
C
Smallest fragment of DNA that traveled the fastest
(Choice D)
D
Largest fragment of DNA that traveled the slowest
Answer:
C) Smallest fragment of DNA that traveled the fastest
Explanation:
During this gel electrophoresis, DNA passes through a agarose obstacle course, where the poles opposite to wells are positively charged electrodes. Since DNA is negative in charge, when it is placed in wells and electric current is run, DNA will try to run towards the positive end.
Shorter DNA segments can easily "wiggle" through the pores of the gel whereas, longer DNA segments need to do more "squeezing" to move down the gel.
Therefore, Band X in this figure is the shorter DNA segment as it move through the lane at a faster rate and reaches very far when compared to longer DNA segments.
Smallest fragment of DNA that traveled the fastest. So, the correct option is (C).
What is Gel electrophoresis?Gel electrophoresis is defined as the technique that is used in laboratories to separate charged molecules such as DNA, RNA and proteins according to their size where the charged molecules move through a gel when an electric current is passed through it.
During gel electrophoresis, the DNA passes through an agarose barrier course, where opposite poles of the wells are positively charged electrodes, so the DNA is negatively charged when it is placed in the wells and an electric current is passed through it. DNA will try to run towards the positive end.
Shorter DNA segments can easily "squeeze" through the pores of the gel, while longer DNA segments require more "squeezing" to move down the gel. Band X in this figure is the short DNA segment as it moves through the lane at a faster rate and reaches much farther than the longer DNA segments.
Thus, smallest fragment of DNA that traveled the fastest. So, the correct option is (C).
Learn more about Gel electrophoresis, here:
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In cats, orange vs black fur is controlled by a single x-linked gene. The orange and black alleles are codominant; the intermediate phenotype is tortoiseshell.
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A mother and father cat have 6 kittens: two orange females, two tortoiseshell females, and two black males.
a. What is the mother cat's phenotype?
a) black
b) orange
c) tortoise shell
d) impossible
b. What is the father cat's phenotype?
a) black
b) orange
c) tortoise shell
d) impossible
c. What is the fourth possible phenotype for their offspring?
a) black female
b) orange male
c) tortoise shell male
d) they already had all the offspring with possible phenotypes
Answer:
a. b) orange
b. c) tortoiseshell
c. d) they already had all the offspring with possible phenotypes
Explanation:
