Answer: funcrion- The male reproductive system is a grouping of organs that make up a man's reproductive and urinary systems. These organs do the following jobs within your body: They produce, maintain and transport sperm (the male reproductive cells) and semen (the protective fluid around the sperm). Aging changes in the male reproductive system occur primarily in the testes. Testicular tissue mass decreases. The level of the male sex hormone, testosterone decreases gradually. ... The prostate gland enlarges with age as some of the prostate tissue is replaced with a scar like tissue. brainliest? hope this helps
Explanation:
The diagram represents a taxonomic tree showing the possible evolution of six species of finches.
The most likely explanation for the branching pattern seen in the circled region labeled X is that:
A.
environmental changes resulted in extinction
B.
speciation occurred as a result of inbreeding
C.
no speciation occurred during this time
D.
environmental changes influenced speciation
Answer:
Option B
Explanation:
As we can see in the figure, three species of the finches in circle lie on the same main branch as three sub branches. This is an example of speciation caused by interbreeding of species which led to removal of deleterious genes and then caused emergence of three species adaptable to the existing environmental conditions.
Hence, option B is correct
The following case study is a paraphrase from "Good Clinical Practice. Standard Operating Procedures for Clinical Researchers" (Kolman, J., Meng, P. and Scott, G. editors; John Wiley and Sons publishers, 1998):
“While a study subject and a relative were walking in town one day during the summer, a hanging flower basket fell on a study subjects head, resulting in the study subject falling down and becoming unconscious. The subject’s relative called for an ambulance. On arrival at a local hospital’s Emergency Department, in which the subject regained consciousness but could not recall the event, a x-ray revealed a fractured skull. The subject’s consciousness level at this point was deteriorating and after further tests a subdural hematoma was diagnosed, which was evacuated under general anesthesia. Postoperative recovery was uneventful and progressing well until day four, when the patient developed acute dyspnea (shortness of breath) at rest during visiting time. An emergency lung scan was performed that confirmed a diagnosis of pulmonary embolism. The study subject was anticoagulated and was eventually discharged from the hospital”
1. What is/are the AE/s in the case study?
2. Are there any AEs that are "serious"? If "yes", list them and state why they are serious.
3. What are your thoughts about the AE(s) being related to the study drug (NOTE: we do not know whether the subject is on active drug or placebo)?
A male rabbit w the genotype GGbb is crossed w a female rabbit with the genotype ggBb the square is set up below
QUESTION 9
Neurotransmitters are stored in
A. the synaptic cleft.
B. synaptic vesicles.
C. the postsynaptic neuron.
D. Nissl bodies.
E. smooth endoplasmic reticulum.
Answer:
B. synaptic vesicles
Explaination: online resources:)
Which population is most likely to survive in the event of a new disease?
A.
a very diverse population
B.
a somewhat diverse population
C.
a population with little diversity
D.
a population with no variation
Answer:
A
Explanation:
I don't know if this is the answer but I think it's A because more diversity means more opinions and more opinions means more solutions to the problem at hand
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
the answer is D that is literally the most logical one
1. A food chain is one part of a food web. Which list is part of the food web shown above?
A diatoms-fish-leopard-seal-orca
B diatomskrill--fish-great white
shark-orca
C copepodsdiatomskrill--fish-
leopard-seal-orca
Dorca--leopard-seal--squid-copepods- diatoms
Help pls will get brainliest
Viroids’ largest impact is on ________.
Answer:
the agriculture indus
Correct answer: the agriculture indus
which of the following is NOT a basic need of plants in order to live
a.water
b.oxygen
c.sunlight
d.carbon dioxide
just say a b c or d is the answer ill give brainlist and ten points
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
C. burning coal and natural gas
Explanation:
The reason is that it can affect global warming because they are fossil fuels.
Please give me BRAINLIEST and THANKS lol <(￣︶￣)>
please answer this question:)
Scientists can create transgenic organisms by inserting foreign DNA randomly into the chromosomes of a host. A scientist might do this in order to express genes carried in the foreign DNA and in this case the foreign DNA is often engineered to include insulator sequences at the ends of the foreign sequence. Why insulators would be useful in this context
Answer:
Insulator sequences serve as a boundary between two genes. In this case, the insulator sequence is a boundary between the organism's normal DNA and the inserted foreign DNA. The insulator will protect the inserted DNA from any regulatory effects that may come from the neighboring gene.
Which of the following would decompose relatively quickly in a landfill?
A. a cloth coat
B. a screwdriver
C. a pair of sandals
D. a fish
I'm to tired to brain rn-
Assume that gene A controls the conversion of a white pigment, P0 into another white pigment, P1 the dominant allele A specifies an enzyme necessary for this conversion, and the recessive allele a specifies a defective enzyme without biochemical function. Gene B controls the conversion of the white pigment, P1 into a pink pigment, P2 the dominant allele, B, produces the enzyme necessary for this conversion, and the recessive allele, b, produces a defective enzyme. The dominant allele, C, of the third gene specifies an enzyme that converts the pink pigment, P2 into a red pigment, P3 its recessive allele, c, produces an altered enzyme that cannot carry out this conversion. The dominant allele, D, of a fourth gene produces a polypeptide that completely inhibits the function of enzyme C; that is, it blocks the reaction P2-P3 Its recessive allele, d, produces a defective polypeptide that does not block this reaction. Assume that flower color is determined solely by these four genes and that they assort independently. In the F2 of a cross between plants of the genotype AA bb CC DD and plants of the genotype aa BB cc dd, what proportion of the plants will have (a) red flowers? (b) pink flowers? (c) white flowers?
Answer:
Red = 27/256Pink = 117/256White = 112/256Explanation:
Available data:
Four diallelic genes: A, B, C, DAA and Aa allows the conversion of P0 tp P1, while aa does notBB and Bb allows the conversion of P1 tp P2, while bb does notCC and Cc allows the conversion of P2 tp P3, while cc does notDD and Dd inhibit the action of allele C (P2 to P3), while dd does notThis is:
In the presence of the dominant alleles A, B, and C, the three might occur:
Po (white 0) ----> P1 (White 1) ----> P2 (Pink)----> P3 (Red)
A B C
In the presence of the recessive alleles a, b or c, the three reactions or some of them might not occur ( the X represents the inhibition of the reaction):
Po (white 0) --X--> P1 (White 1) --X--> P2 (Pink)--X--> P3 (Red)
a b c
In the presence of allele D, the last reaction is not possible, because D inhibits the action of C
P2 (Pink) --X-->P3 (Red)
C + D
So, in order to get Red flowers we must have the next genotype: A-B-C-dd (The three reactions can occur, and D must be absent)To get Pink flowers we must have the next genotypes: A-B-C-D- (D Inhibits C, hence it inhibits the third reaction) or A-B-ccD- or A-B-ccdd (cc does not allow the third reaction to happen, independently of the D gene presenceTo get White flowers we must have the next genotypes: aaB-C-D-,aabbC-D-, aaB-ccD-, aabbccD-, aabbccdd, aaB-C-dd, aaB-ccdd, aabbC-dd, A-bbC-D-, A-bbccD-, A-bbC-dd, A-bbccdd (aa must be present to get a white0 flower, or bb must be present to get a white1 flower)In the proposed problem, we have that the parental are AAbbCCDD and aaBBccdd, so we can tell that the whole F1 progeny will be heterozygous for the four genes, this is AaBbCcDd.
Knowing that these four genes assort independently, then we can infer that the F2 will have the next genotypic proportions for each gene:
AA + Aa=3/4aa= 1/4BB + bb= 3/4bb = 1/4CC + Cc = 3/4cc= 1/4DD + Dd =3/4dd= 1/4So, to get each of the mentioned genotypes for each trait, we must multiply their respective genotypic proportions, like this:
Red: A- x B- x C- x dd: 3/4 x 3/4 x 3/4 x 1/4 = 27/256Pink: A- x B- x C- x D-: 3/4 x 3/4 x 3/4 x 3/4 = 81/256A- x B- x cc x D-: 3/4 x 3/ x 1/4 x 3/4 = 27/256
A- x B- x cc x dd: 3/4 x 3/4 x 1/4 x 1/4= 9/256
By summing these proportions, we can get the proportion of all the pink flowers: 27/256 + 81/256 + 27/256 + 9/256= 117/256
White: To get the proportion of white flowers, you can repeat the same multiplications as before for each possible white genotype and then sum the results, as we did for pink flowers. Or you can extract from the total number of flowers (256), the amounts of red and pink flowers (27 and 117). This is: 256 - (27 + 117) = 112.Then 112/256 is the proportion of white flowers.
why is it so important for animals to keep the concentration of their body fluids constant
Answer:
A balance of bodily fluids will prevent the development of diseases, the deterioration of body organs, and death of animals.
Explanation:
Water, blood, saliva, sweat and other body fluids should be kept constant and balanced through homeostasis because the sharp rise and fall of these fluids will prevent the organs of the body from operating optimally and this can lead to the development of diseases and consequent death. For example, water is a vital fluid. Too much of water in the system can lead to diseases like Edema where the legs begins to swell because there is no way of letting out body fluids from the body.
Too little water in the body can lead to dehydration and the increase in blood pressure because of the excessive concentration of solutes. The digestive and urinary systems have mechanisms to keep this fluid under control.
Plant processes of capillary action, transpiration, and root pressure are the result of seasonal changes, unique properties of water. . leaf production the water cycle.
Answer:
unique properties of water
Explanation:
These processes are a result of the unique properties of water- cohesion and adhesion. and the test said it was the answer.
Answer:
unique properties of water.
Explanation:
These processes are a result of the unique properties of water- cohesion and adhesion.
A crop-dusting plane has to fly low and slow. It needs wings with a surface area ____________________the surface area of a jet wing.
a.
less than
c.
greater than
b.
equal to
Please select the best answer from the choices provided
A
B
C
Although Domain Bacteria is very diverse, bacteria do share some basic characteristics. Which of the following are some of those shared characteristics?
Question 4 options:
Bacteria are surrounded by a a strong cell wall made of a molecule called peptidoglycan.
Bacteria are eukaryotes.
Bacteria are prokaryotes.
Their DNA is one single, circular chromosome
Answer:
They Don't have definet nucleus (eukaryotes )
They have a SINGLE DNA,circular chromosome
Explanation:
All bacteria share common basic characteristics.
Molly wanted to test out new NikeSpeed running shoes that claim to make her run faster than her regular Nike shoes. If she wanted to test these shoes, what would be her:
Independent variable:
Dependent Variable:
TWO controlled variables:
Control Group:
Experimental Group
Answer:
Independent variable: type of shoe
Dependent Variable: running speed
TWO controlled variables: same running distance, same runner
Control Group: running with the regular Nike shoes
Experimental Group: running with the new Nikespeed shoes.
Explanation:
According to this question, Molly wants to test her new NikeSpeed running shoes that claim to make her run faster than her regular Nike shoes.
- Independent variable is the variable of an experiment that is subjected to change or manipulation by the experimenter. In this experiment, the independent variable is the SHOES that Molly wants to test.
- Dependent variable is the measured variable that responds to the change made to the independent variable. In this case, the dependent variable is the RUNNING SPEED.
- Control variable is the variable that must be kept unchanged throughout the experiment in order not to change the experiment outcome. The control variables include; SAME RUNNING DISTANCE, SAME RUNNER (MOLLY) etc.
- Control group is the group of an experiment that does not receive the experimental treatment. In this case, it is RUNNING WITH THE REGULAR NIKE SHOES.
- Experimental group is the group that receives the experimental treatment. In this case, it is RUNNING WITH THE NEW NIKE-SPEED SHOES.
What are the gametes that would be formed for the following genotype: Aa?
Answer:
A and a
Explanation:
GAMETE formation occurs via a process called MEIOSIS. During meiosis, segregation and independent assortment of genes occur. According to Gregor Mendel who proposed the law, the law of segregation states that the alleles of a Gene will separate into gametes. This separation occurs in such a way that only one allele of that gene is found in each gamete.
In this case, an organism with genotype "Aa" will produce gametes that contains the following: A and a. Therefore, the gametes of genotype Aa will be A and a.
Which situation is an example of altruistic behavior?(1 point)
A) A child steals an apple.
B) A child shares an apple.
C) A child eats an apple.
D) A child throws away an apple.
Answer:
B. A child share an apple
Explanation:
Im sorry if this is wrong
A child who shares an apple shows altruistic behavior.
What is altruistic behavior?
Evolutionary biologists determined that an animal's behaviors are altruistic when they benefit other individuals, even to the potential detriment of themselves. Bees, ants, and termites are examples of altruistic behavior.Thus, we can conclude that in option B a child who shares an apple shows altruistic behavior.
you can learn more about altruistic behavior here:
https://brainly.com/question/11287458
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When air moves into the lungs, oxygen
O is converted into carbon monoxide
O diffuses across the membranes of the alveoli and enters the blood
O diffuses across the membranes of the alveoli and exits the blood
O moves across the membranes of the alveoli by active transport
Answer:
When air moves into the lungs, oxygen diffuses across the membranes of the alveoli and enters the blood.
When water evaporates,
the particles
A stop moving
B. move faster
C. move slower.
D. explode.
The ligand binding domain of a protein must be inserted in
NO LINKS Roundworms use the_____ route to move between two dogs.
Answer:
Feces is your answer. AKA poop.
Explanation:
31
Directions: Select the correct planet
The diagram below shows the orbits of the inner planets around the Sun. Based on the diagram, which inner planet has the longest
year?
Nenus
Mars
Mercury
Earth
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
c
Explanation:
What negative effect occurs when there is a decrease in air quality?
Answer:
d
Explanation:
Which of the following best describes why the two organisms you chose are closely related to each other using evidence from the chart?
Lunar Eclipse. Choose ALL that apply
Lesson 3.07
Question 18 options:
Earth is directly between the moon and sun
Light from the sun is blocked
Earth casts its shadow on the moon
The moon turns dark
Answer:
All options are correct
Explanation:
In Lunar eclipse, Earth comes in between the sun and moon. Due to this, the sun light falls on the earth and its shadow is created that prevent the moon from shining.
In other way earth block the sun light reaching moon by coming in between the sun and moon.
Hence, All the options are correct