Answer:
D. runoff
Explanation:
I took the test.
What are molecular clocks used for
A- to cure hereditary disease
B- to classify
C- to locate fossils under water
D- to compare homologous structures
Answer:
D
Explanation:
Write down name and action of enzymes in small intestine
Answer:
The names of the digestive enzymes are lipases, proteases and peptidases, and amylases.
Explanation:
The function of the lipases is to split fatty acids off of fats and oils. The function of the proteases and peptidases is to split proteins into small peptides and amino acids. The function of the amylases is to split carbohydrates, such as starch and sugars, into simple sugars, like glucose.
Protein is:_________.
a. unique in that it is the only dietary component that contains oxygen.
b. important primarily because it builds strong bones and teeth.
c. made up of 20 different amino acids.
d. made up of branches of amino acids combined with branches of glucose.
Answer:
c. made up of 20 different amino acids.
Explanation:
Protein are macromolecules which have long chains of amino acids and they are used in the production of enzymes and aids metabolic activities of the body such as in the repair of worn out tissues and building up of muscle mass.
Protein is unique as it contains about 20 different amino acids. Carbohydrates also have Oxygen present in their compound. Calcium is the mineral responsible for building up of bones and teeth.
How does the structure of the skull help prevent injury to the brain?
A) The elastic bones of the skull help the skull reshape itself to prevent breakage.
B) The fused bones of the skull lessen the impact on the brain.
C) The spongy bones of the skull cause the ball to bounce off the head.
D) The joints in the skull move to prevent the football from hitting the head.
Answer: B
Explanation:
what is scientific advancement? describe characteristics
Scientific or technological advancement is the generation of information or the discovery of knowledge that advances the understanding of scientific relations or technology. This definition encompasses the definition of scientific advancement, advancement of scientific knowledge and technological advancement. The only difference is that scientific advancement and advancement of scientific knowledge relate to science whereas technological advancement relates to technology.
The ___________ hemisphere of the brain develops strengths in nonverbal areas such as comprehension of spatial relationships, recognition of patterns and drawings, music, and emotional expression.
Answer:
the right hemisphere
Explanation:
please help with this
Answer:
the 4th one
Explanation:
Select all the correct answers.
Exotic pets, such as lizards and tarantulas, have increased in popularity. These animals are caught in the wild and sold as pets. What are two possible effects this action can have on biodiversity?
It will lead to greater biodiversity in these animals’ native environments.
Populations of these animals could decrease in the wild.
It could increase competition among predators of these organisms.
It increases the chances that wild organisms will find an unrelated mate.
Answer:
B and C
Explanation:
PLATO
;)
Populations of these animals could decrease in the wild and It could increase competition among predators of these organisms actions can have on biodiversity.
What do you mean by biodiversity?Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic, species, and ecosystem level.
Biodiversity is all the different kinds of life you'll find in one area—the variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural world.
Biodiversity is the natural world around us, and the variety of all of the different kinds of organisms - the plants, animals, insects and microorganisms that live on our planet.
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Eosinophils function in Eosinophils function in production of heparin. production of surface antigens for red blood cells. blood coagulation. antibody production. destroying antibody-labeled antigens.
Answer:
Destroying antibody labeled antigens.
Explanation:
Eosinophils are type of cells of the immune system or white blood cells that help to fight against infections or diseases.
Eosinophils have several functions and these include: they help in
movement to inflamed areas, they trsp substances, killing cells or destroy cells anti-parasitic and bactericidal activity, participating in immediate allergic reactions, and modulating inflammatory responses.
Eosinophils destroy antibody labeled antigens so as to destroy or kill the antigens in order to fight against infections. Eosinophils are produced from the bonemarrow and are minutes in the body . The are released into the blood and later coagulate to function as defence mechanism.
Why does mensuration occurs?
Explanation:
Mensuration is a natural process in which there is discharge of dead endometrial cells, unfertilized ovum, blood from broken capillaries and mucous membrane from uterus every month. As it is a natural process, it occurs every month to discharge the unwanted substances from our body. It makes our body free from the unwanted substances which can cause infection. It releases the unfertilized hormones prodoced in uterus of female.
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Learning goal 1: Plastics are:
:natural
:synthetic
Answer:
synthetic
Explanation:
Answer:
The answer is synthetic
Explanation:
Question 5 of 10
A whale is able to move its fins in the ocean because of energy it obtains
directly from
O A. wind
O B. food
O C. the Sun
D. ocean currents
Which best describes what happens if two waves meet and build on each other?
A. constructive interference
B. destructive interference
C. reflection
D. absorption
Answer:
constructive interference
Explanation:
when two waves build off of each other, they interfere with one another and construct. therefore, the answer is constructive interference.
When the path difference between subsequent crystal planes is equal to an integral number of electromagnetic radiation wavelengths, constructive interference occurs. Thus, option A is correct.
What is the constructive interference?Where the lines (which represent the peaks) cross over one another, constructive interference occurs. In other words, constructive interference occurs when two waves are in phase.
When two waves are entirely out of phase (a peak is located in the middle of two waves), destructive interference ensues.
Constructive interference is the phenomenon where the total amplitude of two waves is equal to the sum of the amplitudes of the separate waves when two waves are in phase and their maxima add.
Therefore, constructive interference best describes what happens if two waves meet and build on each other.
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Which of the following is false? Unselected Under normal conditions, blood PO2 affects breathing only indirectly. Unselected Changes in arterial pH resulting from CO2 retention or metabolic factors act through the peripheral chemoreceptors. Unselected When arterial PO2 falls below 60 mm Hg, it becomes the major stimulus for respiration. Unselected Oxygen levels are the primary stimulant of respiration.
Answer:
The sentence that says: Blood PO2 affects respiration only indirectly, IT IS FALSE, since the partial pressure of oxygen gas together with carbon dioxide are factors that DIRECTLY affect respiration.
The sentence that says: Unselected changes in arterial pH as a result of CO2 retention or metabolic factors act through peripheral chemoreceptors. It is FALSE, since the central chemoreceptors together with the peripheral ones can detect the metabolic acidosis generated by the CO2 retention, this is how the CNS receptors capture the CO2 that crosses the blood-brain barrier and stimulates hyperventilation to compensate for this phenomenon and increase the plasma concentrations of partial oxygen pressures.
The sentence that says: in selecting When arterial PO2 falls below 60 mm Hg, it becomes the main stimulus for breathing, IT IS FALSE, since it not only encourages ventilation to promote oxygenation but also activates the renin-angiotensin-aldosterone in order to recover blood volume and thus achieve adequate blood pressure.
In addition, hypovolemia triggers tachycardia and weakening symptoms, which is why the drop in blood pressure is not the main stimulus for breathing.
Explanation:
Breathing is promoted by muscle contraction, medium and high temperatures (that is, in hot or hot climates), partial concentrations of oxygen and carbon dioxide both in the atmosphere and in our blood, and in situations of systemic imbalances such as metabolic acidosis or alkalosis.
To celebrate her recent weight loss, Lisa’s friends decide to take her out for a healthy dinner. Lisa doesn’t drink alcohol because she knows the empty calories will contribute to weight gain. One girlfriend at the dinner has four margaritas and an extra shot of tequila before the food arrives. Is this friend’s behavior considered binge drinking?
Answer:
Yes
Explanation:
In the scenario being described in the question it can be said that Yes, the friend's behavior would be considered binge drinking. This is due to the fact that consuming four drinks or more for women is considered binge drinking, and she had 5. Binge Drinking is defined as when a pattern of drinking that brings a person's blood alcohol concentration (BAC) to 0.08 g/dl or above, which for men is 5 or more drinks, and for women it is 4 or more drinks in less than 2 hours.
How could gene therapy be used to treat diseases caused by mutated genes?
A. It could deliver a corrected version of a gene to a person's cells.
B. It could infect a person with a virus that is more harmful than the
mutation
O C. It could change a few bases in a piece of mutated DNA in only one
cell.
D. It could change genes in an individual so that offspring cannot get
the disease.
Answer:
a
Explanation:
A student encounters an animal embryo at the eight-cell stage. The four smaller cells that comprise one hemisphere of the embryo seem to be rotated 45 degrees and to lie in the grooves between larger, underlying cells (i.e., spiral cleavage).
This embryo may potentially develop into a(n):___________.
A) turtle.
B) earthworm.
C) sea star.
D) fish.
E) sea urchin.
From watching his wife struggle to keep track of the family finances, Intuit founder Scott Cook identified the need for easy-to-use financial software that provided a single place for managing bills, bank accounts, and investments. This is an example of which innovator DNA trait
Answer:
It is observing
Explanation:
In observing innovator DNA trait, innovators or observers carefully and consistently search out for any little behavioral details in the activities of customers, suppliers, and other companies so that they will gain insights and knowledge about new ways of doing things.
From watching his wife struggle to keep track of the family finances, Intuit founder Scott Cook identified the need for easy-to-use financial software that provided a single place for managing bills, bank accounts, and investments is observing because he look out carefully for any little behavioral details in on how his wife handle business related financial activities in the home so that he will gain new insights on how to do things in a new way.
Which of these must exist for natural selection to cause change ?
Answer:
The answer is A.
Explanation:
A marine biologist discovers a new marine animal that has a coelom, but it does not develop from the mesodermal tissues. Under which category should she classify this animal? A. pseudocoelomate B. acoelomate C. coelomate
B. acoelomate
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Lethal genes (genes that result in the failure to develop a vital organ or metabolic pathway) are nearly always recessive. Animal breeders who discover a unique trait and selectively breed to increase the occurrence of that trait often encounter a noticeable increase in lethal genes. Why
Answer:
Though these genes are recessive, it is still very much possible for the offspring to inherit this, and the lethal gene is no different.
Explanation:
Suppose this animal breeder picked a dog who appeared to be happy and healthy and paired with another healthy dog. One of these healthy dogs may have this recessive lethal gene, though they have not been affected by it, their offspring may be likely to.
I will give the brainliest answer to someone who tells me what friction is
Answer:
friction is the force which comes against our force when we push a object
Q. 35 One treatment for high blood pressure is taking diuretics that prevent the kidney collecting ducts from reabsorbing water. How would diuretics reduce blood pressure? By increasing blood volume By decreasing blood volume By increasing heart rate By decreasing heart rate
The diuretics will increase the volume of urine. That means more water is taken from the blood and excreted. According to Boyle's law, the volume is proportional to the pressure(p1v1=p2v2). It means that if we decrease the volume of blood we also decrease the pressure.
That means second option
Which of the following organ systems are involved in the uptake and transport of materials required for life-sustaining processes? I. Digestive system II. Urinary system III. Nervous system IV. Circulatory system V. Reproductive system VI. Respiratory system
The following organ systems are involved in the uptake and transport of materials required for life-sustaining processes: the digestive system, circulatory system, and respiratory system, which are present in the I, IV, and VI.
What is the significance of the respiratory and digestive systems?Both of these systems are important for the body, as the digestive systems help in the digestion of the food so that the energy is taken from the food, and the main role of the digestive system is the breaking down of the food. The importance of the respiratory system is that it helps remove carbon dioxide from the body.
Hence, the following organ systems are involved in the uptake and transport of materials required for life-sustaining processes: the digestive system, circulatory system, and respiratory system, which are present in the I, IV, and VI.
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Within a flock of birds, some birds have long narrow beaks, and other birds have short wide beaks. Environmental changes happen that make it harder for birds that have short wide beaks to find food. After several generations, most of the flock has long, narrow beaks. Which statement best describes the trait of the type of beak that a bird in this flock has
Answer:
Explanation:
Based on this scenario it the statement that represents this is that "Having a long, narrow beak is an inherited trait that is genetically passed down." An Inherited trait is a specific feature or characteristic of an organism that has been passed on to it in its genes through its ancestors. This usually happens as an adaptation to certain changes in the organism's environment in order for it to survive better.
Answer:
A: Having a long, narrow beak is an inherited trait that is genetically passed down.
Explanation:
What three different genotypes are possible for an individual in this population
Answer:
With alleles 'A' and 'a' there are three possible genotypes AA, Aa and aa
Explanation:
Pls mark as brainliest answer
Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. How would you conduct your investigation? In your answer, explain your independent and dependent variable?
Answer:
The student has observed that artificial fertilizer makes his plants grow faster and taller than plain soil. He knows that compost is a natural fertilizer. So, he infers that compost will make his plants grow at a faster rate than they grow in plain soil.
Explanation:
A true statement regarding atherosclerosis is which of the following? (Select all that apply.) Atherosclerosis obliterans occurs when the peripheral system of upper extremities are affected Atherosclerosis usually affects the coronary, cerebral, carotid, femoral arteries and the aorta. Atherosclerosis obliterans is used to describe atherosclerosis; the terms are interchangeable. Atherosclerosis is a result of medium and large arteries being occluded. Atherosclerosis is the dominant type of arteriosclerosis.
the steps of self pollination. In your own words, describe what happens in each step. pls give me 5 step in order
Answer:
Steps are down below
Explanation
1. A small grain of pollen goes onto the stigma
2. Insects go into flowers and brush against the anther and is coated with pollen.
3. Pollen may fall onto the stigma of the next flower
4. Pollen falls onto the stigma of next flower
5. A small seed forms in the ovary of that plant
When does the separation of sister chromatids occur? A. Meiosis 1 B. Meiosis 2 C. Before Meiosis D. After Meiosis
Answer:
option B is correct that is meiosis 2
Explanation:
the two sister chromatids are separated from each other into two different cells during mitosis or during the second division of meiosis