Answers
Answer:
answer d
Explanation:
Related Questions
Evolution is change in a population over time and includes the gene pools of that population. How does biogeographic isolation allow for the change of gene pools over time?
Biogeographic isolation affects the random changes that take place within gene pools.
Biogeographic isolation causes changes in gene pools that result from populations being separated.
Biogeographic isolation determines who will win competition for mates.
Biogeographic isolation determines the time that populations will breed
Answers
Answer:
Biogeographic isolation causes changes in gene pools that result from populations being separated.
Explanation:
Biogeographical isolation consists in the separation of a population by a geographical barrier, giving rise to subpopulations.
With isolation, the subpopulations start to suffer different pressures from the environment and consequently the selected genes in one subpopulation will be different from the other subpopulation.
Due to the biogeographic isolation, the two subpopulations will be prevented from crossing and the differences between them will become more and more accentuated, and with that the subspecies appear.
Over time, these subspecies may become so different from each other that reproduction between them becomes impossible.
When this happens, reproductive isolation occurs and, consequently, the emergence of new species. When speciation occurs due to geographic isolation, it is called allopatric speciation.
Answer:
Biographic isolation causes changes in gene pools that result from populations being separated.
Explanation:
I took the test
Can chickens
and ducks
live
together?
Answers
Answer:
no chickens and ducks not together live
Answer:Yes
Explanation:
I had my chickens and duck live together for a long time. The ducks might try to peck the chickens but it is just them figuring out the pecking order. Hope this helps!
3) Because cardiac muscles are mechanically, chemically, and electrically connected to one another, cardiac muscle tissue functions like a single enormous muscle cell. For this reason, it is called a functional ________.
Answers
Answer: FUNCTIONAL SYNCYTIUM
Explanation: The cardiac muscles are the Pericardium (outermost), Myocardium (middle) and Endocardium (innermost) though three(3) in number but they work as a unit,this functional unit starts with the action of the pacemaker cells,the Sinoatrial nodes,Atrioventricular nodes, bundle of his,bundle branches/purkinjes fibers.
The contraction of the heart muscles relies on impulses from the nervous system and the contraction is coordinated and rapid inorder to bring about a uniform conduction of blood into, through and out of the heart.
If a cell has 32 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 1? A. 8 B. 64 C. 32 D. 16
Answers
Answer:
option c is correct that is 32
Explanation:
meiosis occur in two phases in the first phase DNA replication occur and amount of DNA becomes doubled without any changes in the chromosomes number and two daughter cells( each 2n) are formed
now in stage 2 each daughter cell undergoes mitosis with the formation of two cells each with half chromosomes (n)
now 2n =32
n=32/2=16
after meiosis stage 1 ........ two daughter cell each with 32 chromosomes
stage 2.... each daughter cell form two grand daughter cell each with 16 chromosomes
A cell with 32 pairs of chromosomes will have 32 chromosomes after meiosis I
WHAT IS MEIOSIS?
Meiosis is a cell division that results in the formation of four daughter cells that have their chromosomal number reduced by half i.e. from diploid (2n) to haploid (n). Meiosis occurs in a two step division process namely: meiosis I and meiosis II. Meiosis I involves the separation of homologous chromosomes while meiosis II involves the separation of sister chromatids.The actual reduction in chromosome number takes place in meiosis I. Hence, a cell with 32 pairs of chromosomes i.e. 64 chromosomes will have (64 ÷ 2) = 32 chromosomes after meiosis I.
Learn more: https://brainly.com/question/2095046
Which was the first “cell” viewed by the light microscope? microbe atom DNA oak bark
Answers
Answer:
Option d (Oak bark) is the correct choice.
Explanation:
Throughout 1665, Robert Hooke would be the very first individual who saw cells through some kind of microscopic examination. The innovation as well as advancement and implementation of microscopy allowed this to happen.Microscopic constructions would not have been seen already therefore researchers haven't understood which one living creatures were managed to make from.The other three alternatives are not related to the given particular instance. So that option d would be the correct one.
Answer:
Oak bark
Explanation:
When males reach a certain age, the body begins the process of puberty.
How does the body control this process?
O A. Hormones are released by the endocrine system.
B. A fallopian tube is produced by hormones.
C. Reproductive organs are formed by the body.
D. The nervous system produces gametes.
Answers
Answer:
A. Hormones are released by the endocrine system.
Explanation:
ap.ex
Why
are
fungi classified as heterotrophs like animals?
Answers
Answer:
Fungi is heterotypic animal because it takes its diet from its food chain like other animals.
Explanation:
Like animals fungi are also heterotrophs. Fungi use the complex compound in the form of carbon rather then fixing of carbon dioxide from the environment.
Most of the plants and some bacteria do the same things. Fungi does not fix nitrogen as well from the environment. Like other animals fungi takes other nutrients such as from diet. Some of the fungi multiply a-sexually and some fungi do have a-sexual and sexual reproduction with the alternation of generation. The fungi is used to commercial food industry to make the yeast for baking, brewing and for making cheese and wine. It is used for fermentation. It is also use in the form of enzymes and bacteria.
Meristic traits are characterized by having phenotypes that are described by ________. Meristic traits are characterized by having phenotypes that are described by ________. irrational numbers prime numbers imaginary numbers whole numbers complex numbers
Answers
Answer:
whole numbers
Explanation:
Meristic traits are referred to as traits that are countable, hence the phenotypes are described by whole numbers instead of irrational, prime, complex or imaginary numbers. Meristics traits are usually associated with fishes, it is used to characterize different known species of fish or can also be employed in identifying unknown fish species. Meristic studies are mostly done on dead fishes than on living fishes
An example of a countable trait in fishes is the number of gill rakers. The identification of the number of gill rakers can be used in identifying the specie of fish.
A plants can have either brown (B) or red (b) leaves. Brown is the dominant trait. If a plane has a genotype bb; which best describes the plant.
Answers
Answer:
Explanation:
A plants can have either brown (B) or red (b) leaves with brown being a dominant trait meaning that it can be BB or Baby
While the red leaves are inherited in the recessive condition as bb.
Thus, a plant with a genotype of bb can be described as having a phenotype/ an appearance with red leaves i.e. the plants produces red leaves due to this genotype.
brainliest All of the following are considered stress hormones except __________. A. epinephrine B. cortisol C. norepinephrine D. estrogen
Answers
Hey There!!
Your answer will be D. Estrogen.
Good Luck <3!!
By ♡Itsbrazts♡
Answer:
Hey!
Estrogen is your answer!
Explanation:
It is the Female developmental Hormone...
Hope This Helps!!
:>
A typical eukaryotic nucleus has to exchange a great deal of protein and nucleic acid material with the surrounding cytosol of the cell. Which choice correctly describes a feature of most nuclei that helps promote this exchange
Answers
Answer: A typical Eukaryote has an organized nucleus as well as an organized cell organelles.
The nucleus is enclosed in a nuclear envelope and the whole cell organelles are further enclosed in a plasma membrane (cell membrane).
From the question,the choice that correctly describe the feature of most nuclei that helps to promote the exchange of protein and other nucleic acids between the nucleus and the surrounding environment is the presence of nuclear pores which allows for selective movement of materials/items in and out of the nuclear space in a regulated manner.
why does my cat act rough with her kittens ? WHO GIVES A REASONABLE ANSWER GET'S BRAINLIEST.(This is not from a subject just curious)
Answers
Answer:dude hes just beingplayful its all good
Explanation:
Answer:
Mother cats are cranky and have health issues that cause them temporary pain and discomfort. When the kittens get too annoying or come too close, the mother cat may swap at them to go away and scram. The kittens, however, are not affected in the least bit.
Explanation:
Why is the frequency of natural disasters increasing? Select one: a. There are less natural hazards occurring. b. Human population in areas prone to natural hazards has increased. c. Deaths from natural disasters has decreased in developed countries and increased in developing countries.
Answers
Answer:
I hope option c is the correct answer.
Explanation:
As for option 1 its totally in correct. for option 2 human population is not always greater in the disaster places.for option three developed countries are developed with all the determined factors but developing countries dont see all the factors as they destroy nature while making road which causes landslide, which causes death.Hope it helps...
Answer:
Option C
Explanation:
I believe Option C is the correct answer
For a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes are possible for the gametes based on the independent assortment of chromosomes during meiosis
Answers
Answer:
About 8 million
Answer:
About 8 million
Explanation:
During an intramuscular injection procedure, the medication label should be checked:
Answers
Answer:
The medication label should be checked by comparing it with the MAR (Medication Administration Records or therapeutic documentation care plan TDCP).That is the label printed on the medication should be compare with the Medication Administrations records
Explanation:
Ideally this should be done three times, when it is removed from the medication cart,and before and after it was removed form the medication cart.
Besides,the date of expiration should be checked,and the regulations concerning administrations of multi-does vial should be taken into considerations.
The medications mode of storage should be taken into confederation,proper storage must be ensured.
Generally the application of medication through injection into the muscles for faster absorption into the blood streams for fast distribution is called IM. This is aided by the rich blood supply to the muscles.Therefore it is a faster mode of blood application than the subcutaneous routes.
Confirm if all of these are correct for 10 points + brainliest. If they are incorrect, please correct it.
Answers
Answer:
Correct
I am not sure.
Explanation:
Hope it helps you...
Which form of natural selection does the graph represent? A graph has trait value on the horizontal axis and proportion of individuals on the vertical axis. The original population increases to a maximum point at the center, and then decreases. The population after selection increases, decreases, increases, and then decreases again. The maximum of the original population is the minimum of the population after selection. directional selection disruptive selection sexual selection stabilizing selection
Answers
Answer:
directional selection
Explanation:
Directional selection is the most common type of natural selection and occurs when some individuals with characteristics favorable to the conditions of the environment in which they live, have survival advantages over individuals who do not have this advantage, who end up dying.
Imagine, for example, a graph showing the directional selection in the same species of moths. Moths of the same species have white and brown collations, in summer, brown moths can camouflage themselves on tree trunks, while white moths cannot and are easily captured by their predators, which means that the amount of white moths decrease. In this graph, the population of white moths would be at a minimum, at the same time that the population of brown moths would be at maximum.
However, with the arrival of the reverse, snow begins to cover the trees, allowing white moths to camouflage themselves more easily. The brown moths, then, are very exposed to predators, causing their population to reach the minimum while the population of white moths reaches the maximum.
Answer: Graph A
Explanation:
When taking a person's blood pressure, after proper inflation of the cuff, the first pulse sound that is heard through the stethoscope indicates that blood is flowing through the artery past the cuff. The reading on the pressure gauge at this point represents:_________.
Answers
Answer:
Diastolic pressure
Explanation:
The reading on the pressure gauge at this point represents the Diastolic pressure. In a medical context, this is the pressure of the blood in the arteries when the heart is filling. In the numerical readings, this is represented by the lower end of the two blood pressure measurements. For example, if the individual's blood pressure is taken and the measurement of 120/80 is taken, then 80 is the diastolic pressure in this scenario.
Any process used to ask and answer testable questions about observations of the natural world” defines which term?
Answers
Answer:
That is the definition of a hypothesis.
Explanation:
What is the role of acid in our stomach?
Answers
break down food
synthesis protein
kill bacteria
Answer:
The role of acid in our stomach is to help breakd down, digest, and absorb nutrients such as proteins. It also aids in eliminating viruses and bacteria in the stomach to protect the stomach from becoming infected, since it is apart of helping protect the lining of the stomach.
Explanation:
What structure of the endocrine system releases insulin if blood sugar levels get too high?
A. Thyroid
B. Adrenal Gland
C. Thymus
D. Pancreas
Answers
Answer:
The answer is Pancreas.
It releases two types of hormone that is insulin and glucagon.Insulin and glucagon are opposite in function. Insulin decreases the glucose level in blood whereas glucagon increases glucose level in blood.
hope it helps...
Which of the following is not an advantage that glycogen provides to muscle cells in which it is stored? Group of answer choices It is available for quick energy spurts. It requires no energy to mobilize the glucose residues for metabolism. It gives anaerobic metabolism a boost.
Answers
Answer: C: It gives anaerobic metabolism a boost
Explanation:
Glycogen doesn't really have anything to do with anaerobic metabolism, but both other statements are correct
Write down the three characteristic features of human blood
Answers
The last few miles of the marathon are the most difficult for Heather. Her hair is plastered to her head, sweat clings to her arms, and her legs feel as if they had nothing left. Heather grabs a cup of ice water. The ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. Then a breeze kicks up and she finally feels some coolness against her skin. Drops of sweat, once clinging to her forehead, now spill down, and Heather feels a stinging as the sweat flows into her eyes.Sweat on Heather’s forehead and arms formed drops because of the ______.
Answers
Answer:
heat.
Explanation:
Answer:
Hello! I am sorry I am late.
The answer is heat.
Explanation:
Hope this answer helped you. Have a great day or night! Good luck on your work!
<3 <3 <3
You read the following headline in the newspaper: "Scientists Find Gene Linked to Schizophrenia." As exciting as this news seems, the reality is that many more years of research will be required before this new knowledge will have any impact on people who have schizophrenia. How will this information likely benefit scientists as they continue to search for treatments
Answers
Answer:
Explanation:
This newfound information will ultimately allow scientists involved in the field to identify the DNA mutations that cause the disease. Once the scientists have correctly identified the exact DNA mutation that causes Schizophrenia then they will be able to begin targeting that specific DNA mutation and test different methods of stopping it in order to develop a treatment for the disease.
describe the complex carbohydrate cellulose
Answers
Answer:
Complex Carbohydrates comprises starches and dietary fibers. Starches ate polymers of glucose. Dietary fibers are mainly indigestable complex Carbohydrates in plant cell walls (cellulose, hemicellulose, and pectin) and a variety of gums, mucilage, and algal polysaccharides.
Order the levels of organization from smallest (top) to largest (bottom)
A group of the same species in a living area, all living and nonliving things in an area, a living thing, all species living in an area
Answers
Answer:
a living thing
same species in a living area
all species living in an area
all living and nonliving things in an area
Explanation:
A living thing is one organism. The same species in a living area only includes one species in that area. All species living in an area includes all organisms in an area. All living and nonliving things in an area include all biotic and abiotic factors.
Answer:
1. A living thing
2. A group of the same species living in an area
3. All species living in an area
4. All living and nonliving things in an area
Explanation:
(Was on my test and got it all right - hope it helped)
[Blank] is a protein found in blood that is represented by a + or - sign, which affects the compatibility of blood with other blood types.
A) Rhesus factor
B)Antigen factor
C)Antibody factor
Answers
Answer:
the answer is rh factor.
Explanation:
Rh factor is known as the class of antigen or protein found on the rbc
If the protein is present, then the person is said to be Rh positive and when the protein is absent the person is said to be Rh negative.
Rhesus factor is present on the outside of red blood cells plasma membrane
What is difference between a skeletal muscle and a general animal cell
Answers
Which is a structure that directs the cell's activities? nucleus Golgi apparatus ribosome mitochondrion
Answers
Answer:
Nucleus
Explanation:
Nucleus controls cells' activities by controlling the synthesis of proteins.
Golgi apparatus involves in the secretion and intracellular transport of a cell.
Ribosome helps the synthesis of proteins only.
Mitochondrion involves in respiration, generating energy for the cell.
Answer:
Explanation:
nucleus:)