Q9.
Figure 9 shows two sperm cells.
sperm A
sperm B
-Z
Figure 9
(i) Name structure Z.
Answer:
what is with yall wemen and sperm
Explanation:
im a male
Help please!!!!
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I need ASAP!!!!
Answer: c is the answer
Explanation: it the answer because spud waves travel without the air u hear it
I believe it's A: the sound is reflected in the glass jar
A biologist wants to measure the effect of gene flow between populations. Which of the following investigations will allow her to accomplish this goal?
A)An investigation that determines a change in allelic frequency of a wolf population by theimmigration of a wolf from another population.
B)An investigation that determines the amount of time it takes for genes from a bee to transfer to the flower it fertilizes.
C)An investigation that determines the causes of mutations in genes that one species of guinea pig transfer to another species of guinea pig.
D)An investigation that determines the rate at which an antibiotic prevents a virus from transferring genes to a cat.
Answer:
B
Explanation:
Cause I say so
The investigation that will allow a biologist to measure the effect of gene flow between populations is that a change in allelic frequency of a wolf population by the immigration of a wolf from another population. Thus, the correct option for this question is A.
What is Population?A population may be defined as a group of individuals belonging to the same species living in the same area at a given time. The size, density, abundance, birth rate, death rate, dispersal, etc. are categorized as the characteristics of a population. These characteristics are known as demographic factors.
According to the context of this question, the process of gene flow can be determined by collating allele frequencies of populations. With this mechanism, if the two populations have increased variation in their gene pool, it expresses a lesser amount of gene flow because gene flow increases homogeneity among different populations.
Therefore, the correct option for this question is A.
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Each of your cells has a set of chromosomes, including
autosomes and sex chromosomes. Explain the main
differences between these two types of chromosomes.
Answer:
in the 46 chromosomes in our body, the autosomes are the first 22 homologous pairs of chromosomes that do not influence the sex of an individual, while sex chromosomes are the 23rd pair of chromosomes that determine the sex of an individual
hope this helps, good luck! : )
Which of the following organisms can be used by humans for selective breeding? Choose all that apply.
15 points btw
Answer:
All of the above.
Explanation:
Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.
Which level of organization involves an organism’s use of the mouth, saliva, teeth, stomach, intestines, liver, and pancreas to break down food?
A. Cell.
B. Tissue.
C. Organ.
D. Organ system.
The level of organization involves an organism’s use of the mouth, saliva, teeth, stomach, intestines, liver, and pancreas to break down food in the organ system. The correct option is D.
What is the organ system?An organ system is a collection of organs that cooperate to carry out a certain task in the body of an organism. Organs, which are self-contained collections of tissues like the heart that cooperate to carry out a single function, are present in the majority of animals and plants.
The human body is composed of 11 primary organ systems. These include the reproductive, integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, and urinary systems.
Organ systems are collections of organs that cooperate to carry out a task for the body they are a part of. They can aid in gas exchange, waste removal, nutrient acquisition and transportation, illness sensing, and disease protection for the body.
Therefore, the correct option is the D. Organ system.
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Answer if you are 100% sure you are right.
Answer:
the answer is the second
Answer: B is the answer.
Explanation:
Complete el cuadro de Punnett que muestra un cruce entre un hombre que es heterocigoto para el tipo de sangre B y una mujer que es heterocigota para el tipo de sangre A.
Answer:
F1) 1/4 = 25% de la porgenie será AB, IAIB
1/4 = 25% de la progenie será heterocigota para el tipo A, IAi
1/4 = 25% de la progenie será heterocigota para el gruo B, IBi
1/4 = 25% de la progenie será homocigota recesiva, ii
Explanation:
El gen I determina el tipo de sangre de una persona. Es un gen dialelico que muestra alelo dominante I y recesivo I. En personas de tipo A, los alelos son IA dominante, i recesivo.En personas de tipo B, los alelos son IB dominante, i recesivoIA e IB son codomiantes entre si, lo que signofica que hay un tercer fenotypo IAIB, expresando ambos tipos de sangre juntos. El alelo i es recesivo siempre.Genotipo A:
IAIA, Homocigota dominanteIAi, Heterocigotaii homocigota recesivoGenotipo B:
IBIB, Homocigota dominanteIBi, Heterocigotaii homocigota recesivoGenotipo AB:
IAIB, Homocigota dominanteCruza: un hombre que es heterocigoto para el tipo de sangre B con una
mujer que es heterocigota para el tipo de sangre A
Parentales) IBi x IAi
Gametos) IB i IA i
Cuadro de Punnett)
IB i
IA IAIB IAi
i IBi ii
F1) 1/4 = 25% de la porgenie será AB, IAIB
1/4 = 25% de la progenie será heterocigota para el tipo A, IAi
1/4 = 25% de la progenie será heterocigota para el gruo B, IBi
1/4 = 25% de la progenie será homocigota recesiva, ii
QUESTION 5
What has caused the growth in demand for fish?
1. A reduction in the amount of cattle for beef production globally, due to its effect on deforestation
2. A switch towards healthier eating in Europe and fish being one of the only sources of protein for some
LEDCS - (Less Economically Developed Country)
3. Fish is a cheaper source of protein than any other, including vegetarian proteins
4. Population growth in nations like China & Japan whose uncontrolled fishing methods are removing too
many fish
O 1.-
2.-
3.-
4.-
Answer:
option 3 is the best choice.
Explanation:
i am Superior to all.
Most populations do not experience: ____ va) exponential growth b) Linear growth c) Resources d) Competition
Answer:
Most populations do not experience: a) exponential growth
Explanation:
Populations that experience exponential growth models show an increase in proportion to their size. The increase in the population size depends on the individual´s reproduction rate: a population that grows at constant exponential rate gains individuals faster as the population increases in size.
This model states that populations live in an environment with unlimited resource availability, so the density factor does not influence population growth. There is no density-dependence effect nor competition for resources. Natality and mortality rate do not depend on density. There is a constant growth rate per capita, and it is proportional to the population size.
Exponential growth is hardly seen in nature due to its characteristics.
Almost every environment shows a carrying capacity point. Carrying capacity is the capability of the environment to support a population. Commonly environments have limited resources and space, and as the population grows, competition increases too. The per capita growth rate decreases as population size increases. Finally, the population reaches the maximum point of carrying capacity, delimited by available resources, such as food or space.
The carrying capacity might be affected by limiting factors, which might be a result of the population density (for example, competition) or might be density-independent. This last case refers to dense-independent factors, and among these, we can mention human impact or natural disasters (fires, volcanic eruption, flooding).
Only a few species can experience exponential growth, such as bacterias.
Which THREE statements describe how the models of mitosis and meiosis demonstrate genetic continuity
Answer:
si ir Jesús money and finace and You Aldo wnat yo put they mitos because ir si the top one
Explanation:
hope ir hemos
Help due today
Biology
Answer:
A) 50%
B) 50%
C) 75%
D)25%
e) 1
f) 1
g) 2
h) 0
i) 4
Draw th punnent square on your own though please
Explanation:
A new dog breed is less likely to cause an allergic reaction in humans. Which statement explains how artificial selection led to the development of this desirable trait?
Different dogs were bred with other animal species such as cats to introduce new nonallergic traits to obtain the new dog breed.
Different dogs were bred with other animal species such as cats to introduce new nonallergic traits to obtain the new dog breed.
Different dog breeds were chosen for nonallergic traits and bred with each other to obtain the new dog breed.
Dogs were trained over generations to not produce and release proteins that cause allergic reactions in humans to obtain the new dog breed.
Dogs were kept outdoors over generations to build up a natural defense against allergens in the environment to obtain the new dog breed.
Answer:it is c
Explanation:cuz it is
Answer:
C
Explanation:
Because they would test the dogs for traits and then selectively breed them
Dos condiciones anormales en el hombre, que son las cataratas y la fragilidad de huesos son debidas a alelos dominantes. Un hombre con cataratas y huesos normales cuyo padre tenía ojos normales, se casó con una mujer sin cataratas pero con huesos frágiles, cuyo padre tenía huesos normales. Calcula la probabilidad de: a) Tener un hijo completamente normal b) Que tenga cataratas y huesos normales c) Que tenga ojos normales y huesos frágiles d) Que padezca ambas enfermedades.
Answer:
La probabilidad de:
a) Tener un hijo completamente normal, cchh = 25%
b) Que tenga cataratas y huesos normales C-hh = 25%
c) Que tenga ojos normales y huesos frágiles ccH- = 25%
d) Que padezca ambas enfermedades C-H- = 25%.
Explanation:
Datos disponibles:
Alelo dominante C expresa cataratasAlelo recesivo c expresa visión normalAlelo dominante H expresa fragilidad de huesosAlelo recesivo h expresa huesos normalesLos posibles genotipos para cada característica entonces son:
CC y Cc ----> Cataratascc -------------> Ojos normalesHH y Hh ----> Huesos frágileshh--------------> Huesos normalesSabiendo esto, podemos deducir los genotipos del hombre y la mujer involucrados en la cruza.
Hombre con cataratas y huesos normales, tiene genotipo C-hhPadre del hombre tiene ojos normales, ccEl padre del hombre es homocigota recesivo, expresando ojos normales. Esto significa que solo pudo heredarle al hijo (el hombre) un alelo recesivo, c. Pero el hombre expresa cataratas, lo que significa que porta también un alelo dominante, probablemente heredado de la madre. Entonces el hombre es heterocigota para el tipo de ojos. Y puesto que tiene huesos normales, sabemos que es homocigota recesivo para esta característica.
Genotipo del Hombre: Cchh
Mujer sin cataratas y huesos frágiles, tiene genotipo ccH-Padre de la mujer con huesos normales, hhEl padre de la mujer tiene huesos normales, implicando que su genotipo es homocigota recesivo y que solo puede heredarle a la progenie alelos recesivos. La mujer tiene huesos frágiles, lo que supone que heredó el alelo dominante de su madre. Puesto que recibió un alelo dominante de la madre y uno recesivo del padre, la mujer es entonces heterocigota para la característica en cuestión. Ella también tiene visión normal, lo que significa que su genotipo para esta característica es homocigota recesivo.
Genotipo de la mujer: ccHh
Sabiendo los genotipos de ambos integrantes de la pareja, podemos realizar la cruza:
Cruza: Hombre x Mujer
Parentales) Cchh x ccHh
Gametas) Ch, ch, Ch, ch (hombre)
cH, ch, cH, ch (mujer)
Cuadro de Punett)
Ch ch Ch ch
cH CcHh ccHh CcHh ccHh
ch Cchh cchh Cchh cchh
cH CcHh ccHh CcHh ccHh
ch Cchh cchh Cchh cchh
F1) Genotipos y Fenotipos:
4/16 = 1/4 = 25% CcHh, Cataratas y huesos frágiles 4/16 = 1/4 = 25% ccHh, Ojos normales y huesos frágiles 4/16 = 1/4 = 25% Cchh, Cataratas y huesos normales 4/16 = 14 = 25% cchh, ojos normales y huesos normales
Why does the human body need proteins
Answer:
Every cell in the human body contains protein. The basic structure of protein is a chain of amino acids. You need protein in your diet to help your body repair cells and make new ones. Protein is also important for growth and development in children, teens, and pregnant women.
Which population is limited by a density- dependent factor?
True or false glucose is the primary nutrient for all living things
Answer:
true
Explanation:
glucose is the primary nutrient for all living things
To what genus does the following organism belong to: Crotalus adamanteus *
A.Eukarya
B.adamaneteus
C.Crotalus
D.Animalia
Answer: crotalus
Explanation: i just took the test
A body cell prepares for cell division. How many chromosomes does it have at the beginning of prophase
Answer:
46 chromosomes, 92 chromatids
Explanation:
Answer:
84
Explanation:
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Which of these methods of energy resource has the LEAST affect on the lithosphere?
A. Surface mining for uranium
B. Pumping oil from under water
C. Harvesting wood by cutting
D. Collecting natural gas from old oil goods
Answer: harvesting wood by cutting
Explanationi 100 percent sure
The process of embryonic development is represented in the diagram below.
Zygote
Developing
embryo
The three arrows in the diagram each represent a process known as
1.
mitotic cell division
2.
meiotic cell division
3.
fertilization of gamete cells
4
differentiation of tissues
Answer:
1. Mitotic cell division
Explanation:
Embryonic development is the formation of organisms that starts from the process of fertilization. The stages of development represent mitosis.
What is mitosis?Mitosis is a part of the cell cycle, that produces two identical nuclei and daughter cells from the division of the cell and replication of the parent cell.
From the diploid parent cell, two diploid daughter cells are produced in mitosis. This process is the first and the initial stage of embryonic development that initiates the growth and development of the embryo from the parent cell.
Therefore, option 1. mitosis is the process of embryonic development.
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If you have 52.4 grams of hydrogen and 52.4 grams of heliumwhich one has a greater mass ? Why?
Answer:
Explanation:
I d k this hard
5. True or False: The exact history and origins of yoga is uncertain, however, it is believed to have
originated in India. *
(1 Point)
O True
False
Answer:true
Explanation:
Yoga's origins can be traced to northern India over 5,000 years ago. The word yoga was first mentioned in ancient sacred texts called the Rig Veda. ... Yoga was refined and developed by Rishis (sages) who documented their practices and beliefs in the Upanishads, a huge work containing over 200 scriptures.
Answer:
true
Explanation:
it was in india 5000 years ago and they talked about it in a language called Rig Veda and which is also written in four sets in another language called sanskrit, was this any helpful?
How is natural selection similar to selective breeding? How is natural selection different from selective breeding?
Answer:
Natural selection and selective breeding can both cause changes in animals and plants.the difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. for this reason selective breeding is sometimes called artificial selection.
Explanation:
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The complementary strand of DNA to the DNA fragment GGC ATA CAT is: (DNA replication)
CCG UAU GUA
GTA TAT CCG
ATG TAT GCC
CCG TAT GTA
which one ^
Answer:
CCG TAT GTA
Explanation:
In DNA replication, adenine pairs to thymine and cytosine pairs to guanine. We take the template strand and pair the correct letters (A to T, C to G).
All the the cells are the same on the inside?
true or false?
Answer:
false
Explanation:
because the cells are unique and different
Answer:
Even though there are many different types of cells, they all share similar characteristics. All cells have a cell membrane, organelles organelles, cytoplasm, and DNA. ( is false)
Describe what scientists discovered when they studied "dancing animals." What ability do all dancing animals have in common? Explain the difference between innate behavior and learned behavior. Support your answer with information from the lesson.
Match the following.
1. any substance that kills germs
2. drugs that attack specific bacteria
3. substance that attacks fungi
4. chemical that destroys pathogens inside the body
antibiotics
germicide
anti-infective
antifungal agents
Explanation:
1. any substance that kills germs
ans. germicide
2. drugs that attack specific bacteria
ans. antibiotics
3. substance that attacks fungi
ans. antifungal agents
4. chemical that destroyed pathogens inside the body
ans. anti-infective
External DNA is assimilated by a cell
A transduction
B transposition
C translation
D transformation
E conjugation
the egg/sperm producing generation of plants
A gametophyte
B sporophyte
C seed
D angiosperm