Explanation:
the brain is related to our nervous system. because it controls all the organs in our body
Answer:
brain
Explanation:
because it controls all actions performed by the body
Which statement best describes the function of the
respiratory passageways of a human?
A) They permit digestive end-products to make
contact with body cells.
B) They permit exchange between the external
atmosphere and the circulatory system.
C) They transport gaseous cellular wastes from
body cells to the lungs for excretion.
D) They regulate the amount of ammonia and salt
dissolved in body fluids.
Explain the term generation time
Explanation:
Generation time is the time taken for a cell population to double in numbers and thus equivalent to the average length of the cell cycle.
ldentify the stages of the cell cycle using the drop
down menus
Label A
Label B
Label C
Label D
Label E
Answer:
Label A - G1 (growth phase)
Label B - S phase (DNA synthesis)
Label C - G2 phase (Growth and preparation for mitosis)
Label D - M phase (Mitosis - cell division)
Label E - Interphase
Explanation:
Label A refers G1 phase - In this phase metabolic changes occurs in the cell and cell get prepare for cell division. The cell grow in size only and moves into the S phase.
Label B refers S phase - In this phase DNA synthesis occurs in which genetic material replicates and form two sister chromatids in each chromosome.
Label C refers G2 phase - All the metabolic changes occurred prepare for mitosis and cytokinesis.
Label D refers M phase - In this phase, Mitosis occurs in which nuclear division and cell division (cytokinesis) takes place.
Label E refers to interphase - All the stages from G1 to G2 phases come under the interphase of cell division.
Hence, the correct answers are:
Label A - G1 (growth phase)
Label B - S phase (DNA synthesis)
Label C - G2 phase (Growth and preparation for mitosis)
Label D - M phase (Mitosis - cell division)
Label E - Interphase
what is a dogs favorite food?
Answer:
Peanut Butter
Explanation:
It is irresistible to dogs
I hope this helped ;)
Answer: Down below
Explanation: My dog likes all of these
Peanut butter. A favorite treat of many canines
blocks of cheese
boiled chicken
small amounts of cat food (it is almost like sugar to them ) but don't give the dog too much
lunch meats
meat-flavored baby foods.
Baby carrots
Yogurt
Salmon
Pumpkin
Eggs.
he wavy movement that pushes the food into next organ of digestive system is called
Answer: peristalsis
Explanation:it's the contraction and relaxation of muscles as the bolus moves down the oesophagus
Milk sugar is called
and is composed of glucose and
A Fructose, Galactose
B. Lactose, Galactose
C. Sucrose, Maltose
D. Maltose, Fructose
A dihybrid cross is created from plants that are heterozygous for both round seeds and yellow seed color. What is the ratio of offspring that have round seeds and yellow seed color?
Answer:
9:16
Explanation:
The ratio of offspring that have round seeds and yellow seed color in a dihybrid cross is 9 out of 16.
WHAT IS A DIHYBRID CROSS:A dihybrid cross is a cross between two individuals that are are heterozygous for two genes. In this question, a gene involving seed color and seed shape is used. The allele for round shape (R) and yellow seeds (Y) are dominant over wrinkled (r) and green seeds (y).A cross between two dihybrid i.e. RrYy × RrYy will result in the following offsprings:
R_Y_ - 9R_yy - 3rrY_ - 3rryy - 1Therefore, the ratio of offspring that have round seeds and yellow seed color in a dihybrid cross is 9 out of 16.
Learn more about heterozygous cross at: https://brainly.com/question/1185199
Why does your pulse rate increase as your level of activity increases?
Please answer quick!
Answer:
In response to exercise, both aerobic and strength training, your heart rate increases Hopefully this helps!
how oxygen produced??
Answer :
Plants take in carbon dioxide from the atmosphere, water from the soil and light energy from Sun.
Photosynthesis occurs.
Oxygen and energy are produced.
There are 21% of oxygen in the atmosphere.
Answer:
Explanation:
photosynthesis consists of two major phases
Light reactions
Dark reactions
oxygen is produced in light reaction by the oxidation and reduction of carbondioxide and water.
The diagram summarizes the light-dependent reactions of photosynthesis.
х
Light dependent reaction
Oxygen
Chemical
energy
What is the input of the light-dependent reactions, labeled X?
Answer:
Light energy.
Explanation:
Light-dependent reactions require light energy to make two molecules needee for the next stage.
Our current understanding of evolution is called a theory because itches been
Answer:
Supported repeatedly as new discoveries have been made.
Explanation:
Do you think killing lionfish is ethical? Why or why not?
Answer:
Well I don't like killing things but lionfish are technically taking over the ocean since they are traveling everywhere and a hurricane caused six fish from an aquarium to accidentally get swept out into the Atlantic Ocean. Female lionfish produce thousands of eggs at a time, which has allowed their population to increase rapidly in the Atlantic. There’s no firm estimate of the number of lionfish in the Atlantic Ocean right now. However, it might be as many as 375 to 1,000 lionfish per acre of the ocean. These fish have predators such as sharks and scorpionfish in their natural habitat. However, they don’t have many natural predators in the Atlantic Ocean, where the typical predatory animals don’t seem to recognize lionfish as food, so it probably is ethical.
Some scientists have been concluded that the legs of modern land vertebrates evolved from the fins of ancient fish. What most likely provided the evidence for this conclusion?
- study the fossils of ancient land vertebrates
- Identity the numbers of ancient fish and ancient land vertebrates
- comparing the number of genes in modern fish to the number of genes in modern land vertebrates
- comparing the movements of genes in modern fish fins to the limbs of modern land vertebrates
Answer:
1- study the fossils of ancient land vertebrates
Explanation:
Some scientists concluded after performing a number of experiments that the legs of modern land vertebrates evolved from the fins of ancient fish. With the passage of time evolution occurs within the body of organisms. These changes occurs due to the surrounding environmental condition of that organism. When the organisms live in water, fins were present but when they go to the land so these fins change into legs. This type of evidence is provided by the scientist after studying the remains of ancient land vertebrates.
Answer:
A
Explanation:
Researchers discovered that the level of lead poisoning can be determined by analysis of a blood sample. This is possible because of the interaction of—
A.
the muscular system and the immune system.
B.
the digestive system and the cardiovascular system.
C.
the skeletal system and the excretory system.
D.
the endocrine system and the reproductive system.
Answer:
Ok for me its B
Explanation:
How doe water change the shape of earth surface?
Answer:
water is constantly moving across the earth. The water is strong enough to break down soil in tiny pieces. What’s happening is a process called erosion. Erosion is: the process of eroding or being eroded by wind, water, or other natural agents.
"the problem of soil erosion".
Water also carries sand and moves it around, this obviously changes the shape of the earths surface!
Explanation:
Answer:
water is constantly moving across the earth. The water is strong enough to break down soil in tiny pieces. What’s happening is a process called erosion. Erosion is: the process of eroding or being eroded by wind, water, or other natural agents.
"the problem of soil erosion".
Water also carries sand and moves it around, this obviously changes the shape of the earths surface!
Explanation:
27. Which material inside bones is responsible for making blood cells?
O cartilage
O joints
O interstitial fluid
O red marrow
Which strophic level does a fish represent in this food chain?
Algae->mosquito larva->dragonfly->fish->man
Answer:
Secondary consumer/small carnivore
Explanation:
The fish is eaten by the top of the food chain/tertiary consumer (human) and eats primary consumers/herbivore (dragonfly), which means it is the secondary consumer on the food chain.
Name the two types of magnets?
Answer:
hourse and bar magnet tq mark
Answer:
Permanent magnets and electromagnets
Please help me
Scientists have tracked the changes in this land for many years. Picture A shows how the land looked to start with. Many years later, the land looked like Picture B. What MOST LIKELY caused the change in the land?
A) a coastal glacier
B) water cutting the rocks
C) wind blowing in circles
D) earthquakes along the shore
Answer:
D) earthquakes along the shore
Explanation:
Movement of tectonic plates are responsible for reshaping the surface of our planet and it is contributed by earthquake sometime.
High richter scale of Earthquake allow tectonic plates to slide over each other or collide with each other of Earth's crust within a geologically period of time and causes the rising or sinking of the land.
As the image shows uplifting of land and sinking land in picture B, the action is performed by earthquakes along the shore.
Hence, the correct option is D) earthquakes along the shore.
What is the function of the hormone progesterone?
ОООО
preparation of the body for maintaining pregnancy
development of male secondary sex characteristics
development of female secondary sex characteristics
preparation of the fallopian tube for fertilization
Answer:
A. preparation of the body for maintaining pregnancy
Explanation:
Progesterone hormone function in preparing the body in order to maintainpregnancy.
What is Progesterone?Progesterone is a type of hormone that belong to group of steroid hormones called ‘progestogens’. This hormone play important in maintaining pregnancy. progestins is a Synthetic hormones that have a similar action to that of progesterone. Progesterone is secreted by the corpus luteum in the ovary during the second half of the menstrual cycle. It functions during menstrual cycle.
Therefore, Progesterone hormone function in preparing the body in order to maintain pregnancy.
Learn more about Progesterone from the link below.
https://brainly.com/question/8862412
What’s the ecological niche of humans
Answer:
the context for the lived experience of humans and their communities, where they share 'kinship' and social and ecological histories
Explanation:
Explain the main idea of the article in detail.
Answer:
Organisms’ characteristics can be used to determine the evolutionary relationships among them. The more closely related two organisms, the more characteristics they have in common. These shared characteristics, along with the fossil record, indicate that organisms have evolved over time from a common ancestor.
Sample Response: Organisms’ characteristics can be used to determine the evolutionary relationships among them. The more closely related two organisms, the more characteristics they have in common. These shared characteristics, along with the fossil record, indicate that organisms have evolved over time from a common ancestor.
Why do onion skin sometimes has black colour?
Answer:
hey!
the outside of a black onion is indeed a mold, specifically, Aspergillus niger.
Explanation:
the mould normally appears on the outer part and is totally harmless
hope this helps
pls put brainliest
Propose some possible explanations for the large volume of noncoding DNA in the human genome.
Answer: Non coding DNA do not contains instructions for proteins synthesis.
They are needed to
1. determine the point of attachments of transcription factors, and
2,they are also needed to control the transcriptions of genetic code from DNA to mRNA during mechanism of transcription.
Explanation:
which best describes the scinetific proces?
in a recessive disorder, a person will only have the disorder if they have one copy of the allele
True or False
Answer:
False
Explanation:
Since it's a recessive disorder that means the presence of the dominant allele will overshadow the recessive if it's present. Two recessive alleles have to be present in order for the person to have the disorder.
Where does carbohydrate production occur in a chloroplast?
A. In the cytosol
B. In mitochondria
C. In the thylakoid
D. In the stroma
Answer
D:In the stroma
Answer:B
Explanation:in the stroma
50 pointtsss A mutagen is -a living thing that has undergone a mutation. -an agent that causes a mutation in DNA. -a mutation that has affected one gene. -a chemical that can poison living cells.
Answer:
It would be the second one
Explanation:
Answer:
an agent that causes a mutation in DNA.
Explanation:
An amoeba consists of a single cell and has a nucleus. What is an amoeba
called?
Answer:
Eukaryote
Explanation:
Eukaryotes have a defined nucleus and amoeba is a single celled eukaryotic organism.
Which organisms are heterotrophs?
Answer:
HUMAN BEINGS AND OTHER ANIMALS EXCEPT PLANTS ARE HETEROTROPHS
Explanation:
HETEROTROPHS ARE ORGANISMS THAT CAN NOT MAKE THEIR OWN FOOD
E.G Human beings and other animals
Answer: Herbivores, omnivores, and carnivores are heterotrophs because they eat other organisms to get proteins and energy.
Explanation:
