How is a baby's gender (male/female) determined by chromosomes? Make sure
you mention X and Y chromosomes
No links pls
the father can contribute an X or Y to the baby
Observational Research is defined as
A). An idea generated by scientists based on their observations
B). A stepwise process used by scientists to evaluate different observational techniques
C). A Process that involves looking at factors in two or more groups of subjects to see if there is a relationship to certain outcomes?
Help is this the correct answer
Answer:
Yellow colour: 25%
Blue colour: 75%
Explanation:
Please Help, Thank you
Answer:
2.Population, community, ecosystem, biome is the order of the individual numbers
Explanation:
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Which feature of the ocean floor is caused by one tectonic plate moving under another at a convergent boundary? A. A flat plain B. A mid-ocean ridge C. A continental shell D. A trench PREVIOUS
Answer:
D
Explanation:
A trench is formed, a mid ocean ridge is formed while doing the opposite of what is described, a shelf is when land sinks, and a plkain isjust a plain
Answer:
D. A trench
Explanation:
Q-6 List two differences between SER and RER.
Q- 7 What is the chemical composition of cell wall in plants and fungi respectively?
Q- 8 List two differences between SER and RER.
Q- 9 What are genes? What is their function?
6.Smooth Endoplasmic Reticulum(SER)gives rise to spherososomes/oleosomes,It is peripheral and may be connected to plasmalemma.
Rough Endoplasmic Reticulum(RER) It helps in the formation of lysomes,It is internal and connected with the nuclear envelop.
7.Plant cell walls are composed of cellulose,while fungi cell walls are composed of chitin.
8.answer on question number 6.
9.A gene is basic physical and fundamental unit of heredity.Some genes act as instructions to make molecules called proteins.How ever,many genes do not code for proteins...
It might help you!!!
Please answer one and two will mark brainliest
Answer:
Because if the food doesn't get texted there is a chance the food might have some things that can spread
Answer:
for question 1. they test it to check if the food is safe/healthy to eat.
explain tidal air in biology
Fevers (below 102ºF):
a
Damage essential proteins in your body
b
Inhibit the growth of pathogens and stimulate macrophage action
c
Occur late in the disease process, after the pathogen is almost eliminated
d
Require emergency treatment
Answer:
Inhibit the growth of pathogens and stimulate macrophage action
The correct answer is B
What is true Of the increased levels of CO 2 in the atmosphere
Answer:
yes
Explanation:
Smallpox (Orthopoxvirus variola) is the first human disease considered to be globally eradicated. All of the following factors played a huge role in its eradication EXCEPT for __________.
a. the existence of an inexpensive, effective vaccine
b. the removal of animal reservoirs in nature
c. rapid diagnosis due to obvious signs and symptoms
d. the fact that there are no asymptomatic carriers, so the disease is always diagnosable
Answer:
a
Explanation:
If the velocity of a can increases from 30 ms-1 to 90 ms -1, the kinetic energy
increases by
a. 8 times
b. 9 times
c. 7 times
d. 6 times
What are some possible sources for early organic molecules?
Answer: I hope this is the right answer you were looking for, if not I'm sorry
Explanation:
The first organic molecules formed about 4 billion years ago. This may have happened when lightning sparked chemical reactions in Earth's early atmosphere. RNA may have been the first organic molecule to form as well as the basis of early life.
I need someone who is kind enough to help with a year 7 science test for free thank you may god bless you.
Answer:
I can help the best I can with your science question. what is your question? I will assist you and explain to you in the best way possible!
Explanation:
Please either ask your science question in the comment or make a question on Brainly.
question below. This classwork assignment should be submitted no later than tomo
How have genetics and heredity contributed to biodiversity on Earth?
1
The signs used depend on the species being surveyed and include the presence of runways and tracks on *
1 point
(a). soft substrates
(b) hard substrate
(c) dry mud
(d) rocks
Answer:
(a). soft substrates
Explanation:
Mobile organisms can be measured by both direct and indirect methods. Direct methods may involve observing the actual behavior (e.g., scoring via timing). Moreover, indirect methods are those where the technique used depends on the species being examined, collecting information such as through recording of tracks in the soft substrate (e.g., mud, sand, snow), presence of fur/feathers, droppings (mammals), etc. For example, indirect observation of insects may involve the determination of exoskeletons, sounds, etc.
Please answer both ASAP Will Mark brainliest
Answer:
Mitosis Has Single Nuclear Division results in 2 Nuclei
2 Daughter Cells Are Produced 2 diploid cells.
Meiosis Has 2 Rounds of Nuclear Division resulting in 4 Nuclei
4 Daughter Cells Are Produced. 4 haploid cells
Both Have Cells divide and Reproduce
Explanation:
choose the true statement(s) concerning the eukaryotic glycocalyx
Explanation:
eukaryotic glycocalyx is present in prokaryotic cells, eukaryotic cells can also have glycocalyces especially single celled eukaryotic organisms.
Target
37.16) A
is a substance that speeds up a chemical reaction without being used up in the reaction.
reactant
lamino
product
catalyst
molecule
Answer:
catalyst
Explanation:
only one make sense
Brainliest pls pls pls
the resources and conditions such as food water and climate that need to be present for a species to survive are known as
abiotic factors/components
i think hope that helps
The ecological niche of a species has been defined with the aid of the resources it requires and through its function or characteristic inside the surroundings.
What are the four types of ecosystems?forms of the ecosystemforest ecosystem.Grassland environment.Tundra atmosphere.wasteland surroundings.What is an atmosphere?An ecosystem is a geographic place in which flora, animals, and different organisms, in addition to climate and landscapes, paint together to shape a bubble of life. Earth science, Ecology, Geography, Human Geography, Meteorology, bodily Geography.
Learn more about the ecosystem here: https://brainly.com/question/842527
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Sakura tested the pH of several solutions. Which substance are acidic?
Answer: cola-flavored soda: 2.6
cranberry juice: 2.9
pickle juice: 5.5
Explanation:
The substances given are:
cola-flavored soda: 2.6
cranberry juice: 2.9
dish soap: 7.3
pickle juice: 5.5
seawater: 8.0
lye soap: 13.0
Based on a pH scale, an acidic solution is one that has a pH that is below 7, a solution is neutral if the pH is 7 while a basic solution has a pH of above 7.
Therefore, the acidic substance will be:
cola-flavored soda: 2.6
cranberry juice: 2.9
pickle juice: 5.5
Similar cell types that are grouped together to perform a common function form ?
Why are antibiotics ineffective against viruses?
Answer:
antibiotics are useless against viral infections this is because viruses are so simple that they use their host cells to perform their activities for them. so antiviral drugs work differently to antibiotics by interfering with the viral enzymes instead
A man and a woman are preparing to have a child. The man finds out that his father has
Huntington's disease. Huntington's disease is an autosomal dominant disorder. The man's
mother does not have Huntington's disease. The man has a sister who does not have
Huntington's disease.
a. Create a pedigree for the family describe. (Be sure to shade individuals affected with
Huntington's disease).
b. List the genotypes on your pedigree.
c. What is the probability that the male has Huntington's disease?
d. If the man has Huntington's disease what is the chance he will pass the disorder to his
child? The mother of the child is unaffected.
Answer:
Man´s father → Huntington's disease → DdMan´s mother → Normal → ddMan´s sister → Normal → dd The mother of the child is unaffected → ddMan → Dd → If affected → 50% or 1/2 of probability Man → dd → If not affected Child → Dd → If affected → 50% or 1/2 of probability Child → dd → If not affectedExplanation:
Huntington´s disease is Autosomal and Dominant, which means that by getting only one copy of the altered gene coming from any of the parents, the receiving person will express the disease.
Let us name the dominant allele D and the recessive allele d.
DD or Dd genotypes express the diseasedd genotype expresses the normal phenotype.Man´s father → Huntington's disease → Dd
Man´s mother → Normal → dd
Man´s sister → Normal → dd
The mother of the child is unaffected → dd
If the sister is normal, dd, means that the father is heterozygous for the trait. The sister inherited a recessive allele from her mother and the other recessive allele must have been inherited from the father, who expresses the disease.
The man has 1/2 of the chances of having the dominant allele because his mother could only pass a recessive allele (100%), and his father could pass either a recessive (50%) or a dominant allele (50%).
If the man inherited the dominant allele from his father, he is heterozygous for the trait, and he has 1/2 of the probability of providing a D allele to the child. The man´s wife is normal, dd, so she can only provide a recessive allele to the child.
Pedigree:
When drawing a pedigree, remember the symbols you need to use
Circles represent femalesSquares represent malesRhombus represents not specified sex (unborn)Full-shaded figures represent affected individualsEmpty figures represent unaffected individuals. Generations are represented with roman numbersIndividuals can be represented with numbers, genotypes, or namesYou will find the pedigree in the attached files
As altitude increases what happens to air pressure
Answer: It decreases
Explanation:
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Answer:
If your body doesn't have enough iron, it can't produce enough healthy oxygen-carrying red blood cells – which can lead to anemia. Anemia is a condition in which the body is not producing enough hemoglobin. With anemia, your cells aren't getting enough oxygen.
Explanation:
reasons why transpiration is important in plant
Someone who can help me please thank you?
Answer:
The dna added on is to give the corn more strenghth
Explanation:
five adaptive features of animals in forest habitat
Answer: mimicry, camouflage, poison, reduction in size and stature, and changing habitats.
Hope this helped you!
Tools, skills, and science knowledge is known as what?
Answer:
I think the answer is capital