I NEED HELP! PLEASE ASAP

Answer:

Karyotypes describe the chromosome count of an organism and what these chromosomes look like under a light microscope. Attention is paid to their length, the position of the centromeres, banding pattern, any differences between the sex chromosomes, and any other physical characteristics.

Explanation:

As this karyotype displays, a diploid human cell contains 22 pairs of homologous chromosomes and 2 sex chromosomes. ... The maternal and paternal chromosomes in a homologous pair have the same genes at the same locus, but possibly different alleles.

Answer:

Temperature, humidity, food and water.

Explanation:

Temperature, humidity, food and water are the four stimuli that is responsible for the decrease in the population of producers, consumers, and decomposers living in that area. If the temperature is too high or too cold, the growth of the producer stops and the plants can't tolerate the temperature will die. The death of producers causes the death of consumers  because consumers depend on these producers for food. The population of decomposer also decreases if the environment is too harsh because decomposers also requires suitable environment for growth and survival. There is adverse effect on the energy pyramid, population, and community of organisms within the environment if these stimuli are not present in suitable range.

Answer:

B and C

Explanation:

It can scratch rocks rated a 1 but not above a 2, the scale goes to 10 so it is very soft compared to other rocks.

Answer:

3.5 percent (3.5%)

Explanation:

In genetics, crossing over or 'recombination' refers to the exchange of genetic material between non-sister chromatids of homologous chromosomes during meiosis I. The map units (m.u.), also known as centimorgans, represent a measure of genetic linkage between genes/loci located on the same chromosome. One map unit (1 m.u.) is equal to a 1 percent chance that two gene/loci (in this case, genes H and K) will be separated during meiosis by recombination. In the example above, it means that among their progeny, 3.5 percent (3.5%) will be recombinant for the two genes (H and K), and 96.5 percent (96.5%) will have the parental combination of these genes.

1. Deltoid: The deltoid muscle is located in the shoulder region. It attaches to the scapula (shoulder blade), clavicle (collarbone), and humerus (upper arm bone).

It works in conjunction with the trapezius and rotator cuff muscles to facilitate shoulder movements and stability.

2. Biceps brachii: The biceps brachii is a muscle in the upper arm. It attaches to the radius (one of the forearm bones) and the humerus. The brachialis and brachioradialis are adjacent muscles that also contribute to forearm and elbow movements.

3. Triceps brachii: The triceps brachii is located at the back of the upper arm. It attaches to the humerus and ulna (one of the forearm bones). The anconeus and brachialis are adjacent muscles that assist in elbow movements.

4. External oblique: The external oblique is one of the abdominal muscles. It attaches to the ribs and the iliac crest, which is part of the hip bone. It works in conjunction with the internal oblique and rectus abdominis muscles to provide trunk rotation and lateral flexion.

5. Gastrocnemius: The gastrocnemius muscle is situated in the calf region of the leg. It attaches to the femur (thigh bone) and the calcaneus (heel bone).

It forms the prominent part of the calf and works with the soleus and plantaris muscles to flex the foot and assist in movements like walking, running, and jumping.

6. Quadriceps femoris: The quadriceps femoris is a group of muscles in the front of the thigh. It attaches to the femur, patella (kneecap), and tibia (shin bone).

The hamstrings (biceps femoris, semitendinosus, semimembranosus) and sartorius are adjacent muscles that have an antagonistic relationship with the quadriceps, helping to flex the knee and extend the hip.

These muscle names, along with their adjacent bones and adjacent muscles, provide a basic understanding of their anatomical relationships and functional roles in the body.

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Answer:

Contact Metamorphism - Heat

The heat is the main cause, cooling magma affects the rock adjacent to an intrusive body.

Dynamic Metamorphism - directed pressure

It takes place due to grinding two large blocks of rock in a fault zone which causes a directed pressure that leads to heat and the formation of these metamorphisms.

Regional - surrounding pressure

A heat and lithostatic pressure come from depth within the earth.

Impact - Meteorite

By collision of meteorite to earth very high amount of kinetic energy is converted instantaneously to heat and differential stress.

Answer:

There is an internal urethral sphincter at the meeting point between each ureter and the bladder to prevent the backflow of urine into the kidneys.

Explanation:

Answer: the angle of the ureter

Explanation: I took the test

Answer: Thermal energy can also be transferred by a method called convection.

Explanation:Convection is the transfer of thermal energy in a fluid by the movement of warmer and cooler fluids from one place to another. A fluid is a substance that can flow. It can be a liquid or a gas

Answer:

no, la selección natural opera sobre los fenotipos seleccionando aquellos que mejor se adaptan a su medio ambiente. En consecuencia, el medio ambiente actúa como agente selectivo pero no es el disparador de los cambios fenotípicos/anatómicos

Explanation:

Jean-Baptiste de Lamarck fue un naturalista francés el cual propuso que los individuos se adaptaban para sobrevivir a su ambiente, y que estos cambios fenotípicos/anatómicos eran transmitidos a la progenie. Por otra parte, Darwin propuso la teoría de la evolución por selección natural la cual establece que aquellos individuos mejor adaptados a su ambiente tiene más chance de sobrevivir y reproducirse, y con lo cual también tienen más chances de trasmitir sus rasgos anatómicos/fenotípicos a la siguiente generación. Hoy en día, la teoría de la evolución de Darwin es ampliamente aceptada por la comunidad científica y permite explicar la variación existente entre individuos. De este modo, de acuerdo a la pregunta planteada, las diferencias anatómicas/fenotípicas entre los individuos de la humanidad no surgieron como respuesta al acondicionamiento ambiental: el ambiente funciona como agente selectivo, seleccionado aquellos individuos mejor adaptados a sobrevivir en cada ambiente en particular.

Answer:

Epithelial cells

Epithelial cells often acquire additional specialisation as gland cells, which can secrete substances at the epithelial surface. Sometimes a portion of the epithelial tissue folds inward, and a multicellular gland is formed. This is glandular epithelium.

Answer:

a)

Explanation:

From the given information:

The avg diameters:

For P1 grapes =1.2 cm

For P2 grapes = 1.6 cm

Their vairance is also given as follows:

For P1 = 0.30 cm²

For P2 = 0.56 cm²

Recall that:

the phenotypic variance VP = genetic variance (VG) + environmental variance VE

As stated that P1 and P2 lines are pure breeding lines, which means that the diameter of the seed in F1 was around halfway between the two parents' and the difference in the F1 was close to the parents'.

This implies that, provided the parent lines exist as pure breeding;

The genetic variation would be absent, indicating that VG is zero.

∴

VP = VE  and VG = 0

Now, averaging the results of two pure breeding lines, we have:

[tex]V_E = \Big (\dfrac{0.30 + 0.56}{2} \Big) \\ \\ V_E = \dfrac{0.86}{2} \\ \\ V_E = 0.43 \ cm^2[/tex]

The formula used in estimating F1 genetic variance can be expressed as:

VP = VG + VE

Recall that

VE = VP = 0.43 cm²

∴

0.43 = VG + 0.43

VG = 0.43 - 0.43

VG = 0

Thus, The statement that is false is in Option a.

VG for F1 is > 0

Answer:

animal cell.

Explanation:

plant cell.

Answer:

energy

Explanation:

Scalar quantities are numerical values, like mass, distance, or speed.

Answer:

Flexion

Extension

Abduction

Addiction

Explanation:

hope it helps

Answer:

D. the dolphin in the back diverge under different selective pressures, which accounts for their difference

Explanation:

I hope this is helps you

Dolphins and bats share a common ancestor that is more recent than the one shared with birds.

Homologous organs are those that may or may not perform the same function, but have the same basic structure and the same embryonic development. This means, therefore, that individuals who have these organs have shared ancestry.

Whit this information, we can conclude that dolphins and bats share a common ancestor that is more recent than the one shared with birds.

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The difference between the gravitational force and electrical force is that the electrical force can pull and push while the gravitational force is only attractive which means it can only pull.

Gravitational force may be defined as a conservative force by which the earth allures other objects by mass.

The basic difference between both two forces is that the gravitational force can only attract masses, while electrostatic force either attracts or repel when two charges of the same sign are gathered.

Therefore, the correct option for this question is D.

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Answer: B

Explanation: took the test 3 days ago and teacher went over the correct answer and i got it right hoped this helped :) PS: i think its the same test as mine is the second question . In humans, the first seven pairs of rib bones are connected to the sternum (breastbone) by cartilage. Which of the following statements describes the main reason why cartilage is important in these bone-to-bone connections?

Answer:

protozoa(b)

Explanation:

protozoa(b)

Answer:

Heart and artries

Explanation:

PLEASE MARK AS BRAINLIEST

Answer:

Explanation:

(1.)

Assessments needed to reduce Ian’s body weight:

(2)

type of Diet:

Every day, Ian must eat three meals and just a snack. A fiber-rich cereal with skim milk and fresh fruit can be a better way to start the day.  

After that, have a bologna sandwich on the whole bread with fruit or a big vegetable-rich salad together with a small turkey sandwich in addition to a cup of skim milk for lunch.  

Poultry hen should be served with potatoes (baked), mixed vegetables, and skim milk for dinner. An early workout snack of a small butter muffin or yogurt combined with cereal should also be included.

Exercise Plan:

i) Bodyweight fat recovery can be supported by proper and secure aerobic activity.

ii) The right kind of aerobic exercise is extremely beneficial for weight loss.

3. Gymnastics is a visually appealing discipline that necessitates speed, strength, and coordination. Most high-level gymnasts eat less than the recommended amount of calories and certain nutrients for their age and training load, according to dietary tests. Young gymnasts, in particular, must absorb enough energy and nutrients to satisfy the demands of growth, exercise, performance, and tissue conservation. Poor energy supply, disordered eating habits, and eating disorders are all factors that can damage a gymnast's long and short-term health. Some gymnasts cross the line into extreme, treatable eating disorders by dieting and using infective weight-loss strategies.

In light of these considerations, Ian should pay attention to his health and diet. Ian should limit his consumption of added sugar intake and increase his fiber intake to help him achieve his body fat targets. Gymnasts can consume at least 1.4–1.8 grams of carbohydrates each pound (3–4 g/kg) per day. Increased protein consumption helps to reduce the amount of muscle lost over a weight-loss cycle. Per day, gymnasts can eat 0.8–1.2 g/lb (1.8–2.7 g/kg) of protein.

Ian would be able to shed weight and prevent an eating disorder in this manner.

Answer:

4

Explanation:

Higher temperatures increase the energy and therefore the movement of the molecules, increasing the rate of diffusion. Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion

Answer:

It is faster and depends on chemical messenger (hormone

I guess this one is right, to be sure ask from someone else 2

Explanation:

One of the most significant differences between the nervous system and endocrine system is that the nervous system uses electrical impulses to send messages through neurons while endocrine glands use hormones to send messages to the target cells through the bloodstream.

Answer:

The correct answer is -

8. They played the songs of medium ground finches and cactus finches through a loudspeaker at different times, when individuals from both species were present, to see which species responded to each song.

9. Males only came to the loudspeaker when the song of their own species was being played.

Explanation:

To test the hypothesis that differences in finches song they sing keep these finches to breeding from other members of finches, Grant should play the different songs of both medium ground finches and cactus finches one by one in loudspeaker and see what members of finches respond on what song.

It will show that cactus fiches breed only on their songs and medium ground finches on their song if the hypothesis is true. Male of each species respond to their songs only and not on other song played on loudspeaker

Explanation:

Answer:

The correct answer is ''it leads to respiratory alkalosis.''

Explanation:

Respiratory alkalosis is defined by pH values> 7.45, and is characterized by an increase in pH and a decrease in pCO2. The most frequent cause is alveolar hyperventilation. Alveolar hyperventilation causes respiratory alkalosis, presenting a decrease in ionic calcium and in some cases tetany. To compensate for this increase in pH, renal HCO3 excretion is increased, but this process requires 24-48 hours. Respiratory alkalosis - primary or compensatory - is defined by hypocapnia, a finding that involves alveolar hypoventilation. The symptoms of acute respiratory alkalosis, the "hyperventilation syndrome," vary only in intensity from those of any alkalosis - most notably disturbances in neuromuscular function (eg, paresthesias, tetany, tremor). A constellation of symptoms have been described with respiratory alkalosis, including increased intracranial pressure, decreased consciousness, tachycardia, hypertension, carpopedal spasm, anxiety, dizziness, and a feeling of vertigo.

The second membrane protects e.coli (Gram-negative bacteria) against a harsh environment.

The outer membrane indirectly helps stabilize the inner membrane as peptidoglycan layer in Gram-negative bacteria is relatively thin than gram positive bacteria ( they have multilayer pepdtidoglycan )

The second membrane called the outer membrane helps in stabilizing bacterial cells as peptidoglycan is thinner in E.coli cells.

A double membrane is present in gram-negative bacteria, and it provides both protection and nutrition for survival.

The outer of these membranes is known as the outer membrane (OM), and it comprises a variety of completely integrated membrane proteins that carry out a number of crucial cellular processes, including nutrition absorption, cell adhesion, cell signaling, and waste export.

Several of these outer membrane proteins (OMPs) for pathogenic strains also function as virulence factors for nutrition scavenging and evading host defense systems. OMPs are distinct from other membrane proteins in that they have a -barrel fold and can vary in size from 8 to 26 strands while still carrying out a wide range of cellular activities.

Although these OMPs play crucial roles in cell viability and pathogenicity, the precise mechanism behind their synthesis into the OM is still largely unclear.

However, during the past ten years, there has been a tremendous advancement in our understanding of the routes and processes that shape a nascent polypeptide into a functioning OMP within the OM.

Here, we will go through a few of these new discoveries that have improved our knowledge of how Gram-negative bacteria produce OMPs, from their production in the cytoplasm to their folding and insertion into the OM.

Therefore, the second membrane called the outer membrane helps in stabilizing bacterial cells as peptidoglycan is thinner in E.coli cells.

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Answer:

A. True

Explanation:

I took it on a test it's correct!

Answer:

This is definitely true

Explanation: