Answer:
circulatory system
Explanation:
What are the closest astronomical bodies to earth?
Answer:
The Moon, Venus and Mars are the planets nearest to the Earth.
A red flowered plant (RR) is crossed with a white flowered plant (WW) and produces plants with pink flowers (RW). If two pink flowered plants are crossed, what color offspring could be produced
Answer:
It would be 100 % pink.
Explanation:
Pink and Pink make Pink. Just as Red and White make Pink.
Due to incomplete dominance, when two pink flowered plants are crossed, the color of offspring could be 1Red: 2Pink :1White.
What is incomplete dominance?In some cases it happens that a certain characteristics does not match with either of their parents, rather it shows new traits.For example: snapdragon.When parent generation of red flowered plant (RR) is crossed with a white flowered plant (WW), F1 produces plants with pink flowers (RW). it does not resembles either of their parents.And when F1 was self pollinated: RW x RW, it produces 1 RR: 2RW: 1WW.Hence, the offspring will be 1 Red flowered plant: 2 Pink flowered plant :1 White flowered plant.
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Organisms that produce
Answer:
Autotroph or producers
Explanation:
An organism that produces its own food is a autotroph
Explain why short bursts of light during the dark period caused the Xanthium strumarium plant to not grow.
Answer:
Due to stoppage of reactions.
Explanation:
The short bursts of light during the dark period is responsible for no growth in the Xanthium strumarium plant because this short bursts of light affected the darkness which is required by the Xanthium strumarium plant for its growth. If there is no burst of light occurs, the Xanthium strumarium plant will grow normally but when Xanthium strumarium plant receives the bursts of light, the chemical reactions that needs darkness will stop and as a result no growth occurs.
which of these features is most likely formed as a result of the movement of earth plates in the diagram?
Answer:
A is the Answer
Explanation:
Which statement best descrſoes photosynthesis?
a. when plants produce their own water
b. when plants produce their own sugar
C. when plants produce oxygen and carbon dioxide
d. when plants self-pollinate
Answer:
b. when plants produce their own sugar
Explanation:
Let's look at the products of photosynthesis! During the process of photosynthesis plants break apart the reactants of carbon dioxide and water and recombine them to produce oxygen (O2) and a form of sugar called glucose (C6H12O6).
Glucose provides plants with needed food through a process called photosynthesis. This process helps plants convert the energy they take in from sunlight into sugar to nourish the plant. Photosynthesis occurs when carbon dioxide, water and sunlight are combined. Plants use these to form glucose and oxygen.
Hope this helps!
Many plants produce seeds which have small hooks on them. These hooks will attach to animals as they
move past the plants. What process do these hooks help the plant with?
A. pollination
B. fertilization
C. germination
D. seed dispersal
atch the statement to the following options.A. One of a pair of chromosomes with similar genetic information and from different sources like the sperm and egg.B. Several X-shaped structures may be visible under the microscope and indicate where crossing over has occurred.C. A lattice of protein holds two replicated chromosomes in precise register with one another.D. Four chromatids are held together by a zipper-like structure.E. A process in which pairs of homologous complex chromosomes line up side by
Answer:
A. Homologue.
B. Chiasma.
C. Synaptonemal.
D. Synaptonemal.
E. Synapsis.
Explanation:
Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.
Synaptonemal complex can be defined as a network of proteins that is responsible for holding homologous chromosomes (homologues) together.
Generally, a synaptonemal complex (protein lattice) is formed between homologous chromosomes during mitosis and meiosis. Also, synaptonemal complex is important for the formation of the four sister chromatids referred to as tetrads.
Furthermore, the synaptonemal complex (protein lattice) has a tripartite structure which comprises of the following components;
I. SC protein-1 (SYCP1).
II. SC protein-2 (SYCP2).
III. SC protein-3 (SYCP3).
In conclusion, the synaptonemal complex plays a significant role in synapsis, recombination and chromosome pairing.
Matching the various terminologies in genetics with their description, we have;
A. Homologue: one of a pair of chromosomes with similar genetic information and from different sources like the sperm and egg.
B. Chiasma: several X-shaped structures may be visible under the microscope and indicate where crossing over has occurred.
C. Synaptonemal: a lattice of protein holds two replicated chromosomes in precise register with one another.
D. Synaptonemal: four chromatids are held together by a zipper-like structure.
E. Synapsis: a process in which pairs of homologous complex chromosomes line up side by side.
what type of limiting factor is space
A.) abiotic
B.) biotic
plsssssss help
NO LINKS pls
How is antigenic drift beneficial for viruses?(1 point)
A) It changes how genes code for antigens.
B) It leads to less mRNA which is easier to copy.
C) It creates a variety of immune responses in the host organisms.
D) It makes them unrecognizable to the immune system.
Answer:
1. Individuals with thicker fur had a survival advantage in the cold environment, allowing these individuals to reproduce more often and create more offspring.
2. random mating
3. The green skin color is being selected over blue skin color.
4. DNA
5. They show intermediate steps in the evolution process.
6. Different islands had very different food resources available, and only individuals that were adapted to eat those food resources survived and reproduced on that island.
7. Those who have traits that help them survive are able to reproduce, and their offspring have those traits, leading to a change in the species over time.
8. It makes them unrecognizable to the immune system.
9. The exposure of human populations to less UV light required a reduction in melanin to produce more vitamin D for healthier bones.
10. the correlation between air pollution and white moth predation
11. It is a biological process that leads a population to have a widespread expression of an advantageous trait.
Answer:It makes the unrecognized to the immune system:)
Explanation:
Do Birds Really Abandon Their Chicks If Humans Touch Them? 25 points!!
Answer:
Yes they do.
Explanation:
birds will abandon their young after being touched by human hands because they can smell the scent of the human on their babies. This then causes the mother bird to become afraid of possible predators and to leave its children to the elements
answer: no
explanation: parent birds do not recognize their young by smell. They will not abandon a baby if it has been touched by humans.
define organic agriculture production for at least three to five sentences
Answer
Organic farming can be defined as an agricultural process that uses biological fertilisers and pest control acquired from animal or plant waste. Organic farming was initiated as an answer to the environmental sufferings caused by the use of chemical pesticides and synthetic fertilisers.
Why can king snakes eat rattlesnakes ?
Put the following in order of size, from smallest to largest
chromosome, gene; base pair
Answer:
The correct order of size - base pair < gene < chromosome.
Explanation:
Nitrogen base-pair attaches with the phosphate group and a sugar molecule to form a building block of DNA or nucleic acids. Nucleic acids make the gene is the physical and functional unit of hereditary that takes the information from parent cells to daughter cells.
Chromosomes are a structure that appears thread-like and makes the genome with different chromosomes. These structures are made up of wrapped DNA or genes around histone proteins.
1. Describe the classical scheme of gene expression from DNA to RNA to protein.
2. Explain DNA replication and recombination.
Answer:
1. The central dogma of molecular biology is DNA >>transcription>> RNA >>translation>> protein
2. DNA replication refers to the genetic process of generating two identical DNA molecules from one DNA sequence. Recombination refers to the exchange of genetic material (DNA) between non-sister chromatids during cell division (meiosis)
Explanation:
Gene expression (also known as transcription) is the process by which a specific fragment of DNA called gene is used as template to synthesize an RNA molecule, usually a messenger RNA (mRNA), which is in turn used as template to create a protein. This final product (i.e., the protein) has an effect on the phenotype of the individual. The DNA template is a single-stranded ordered polynucleotide chain composed of four different types of nitrogenous bases: Adenine, Thymine, Guanine and Cytosine. In the complementary RNA molecule, Thymine bases are replaced by Uracil bases. Moreover, DNA replication refers to the process by which cells duplicate their genetic material before cell division (either mitosis or meiosis). During this process, both DNA strands are separated and each one is used as a template to synthesize a new DNA molecule. Finally, recombination or crossing over is a process where non-sister chromatids exchange genetic material during meiosis I (Prophase I). Recombination is known to increase genetic variation in resulting meiotic cells.
How can alleles show incomplete dominance?
Answer:
a gene, does not completely mask the effects of a recessive allele, and the organism's resulting physical appearance shows a blending of both alleles. It is also called semi-dominance or partial dominance.
Explanation:
The brachial plexus is associated with which of the following?
A. Innervation of the upper limbs
B.Innervation of the lower limbs
C.Axillary nerve is a terminal branch
D. A and B are correct
E. A and Care correct
Answer:
innervation of the upper limbs
The brachial plexus is a nerve network located at the base of the neck and the axillary fossa associated with sensory and motor innervation for the entire upper limb.
What is the brachial plexus?It is responsible for providing the motor (muscle), sensory and sympathetic innervation of the upper limb.
Through it, the spinal cord is connected with all the peripheral nerves of the upper limbs and all the sensorimotor information of these segments is also transmitted.
Therefore, we can conclude that the brachial plexus is a nerve network located at the base of the neck and the axillary fossa associated with sensory and motor innervation for the entire upper limb.
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PLEASE HELP ME I NEED CORRECT ANSWERS ON THIS ILL MARK BRAINILYESS
In snapdragon flowers, the allele for flower color shows incomplete
dominance. Flowers can be red (RR), white (WW), or pink (RW).
4. Two pink flowers are crossed, how many offspring are:
Red?
White?
Pink?
5. A red flower is crossed with a pink flower, how many offspring are:
Red?
White?
Pink?
Answer:
blanco
rojos
Explanation:
Name three functions of the hormone epinephrine.
Answer: See explanation
Explanation:
Epinephrine is also referred to as Adrenaline and it is formed in the medulla oblaganta by adrenal glands and neurons. Some of it's functions include:
1. To help increase the cardiac output.
2. It is vital for respiration as it speeds up breathing.
3. To raise the level of glucose in the blood.
4. To increase the blood pressure by stimulating heart rate.
What does hydroelectric power do?
a.) causes thermal pollution
b.) requires building dams that can harm ecosystems
c.) uses the energy inside an atom's nucleus to generate electricity
d.) releases carbon dioxide into the air
Answer:
B Requires building dams that can harm ecosystems
Answer:
b
Explanation:
is the experience of losing a loved one and
is the emotional reaction to the loss.
grief; bereavement
bereavement; grief
widowing; distress
bereavement; solitude
Answer:
grief , bereavement
b/c the definition of grief is the experience of losing a loved one
Answer:
grisf breavement is the correct answer
it means the emotional situation of loosing a loved one
hope it is helpful to you
Which structure in the heart'separates
oxygenated blood from deoxygenated blood?
Answer:
pericardium
Explanation:
A double-walled membrane, the pericardium, separates the right and left chambers, preventing oxygen-rich blood from mixing up with the one without oxygen. So, the heart functions go smoothly. Deoxygenated blood enters the right atrium.
What human behavior was the cause of the Nipah virus outbreak in Bangladesh? How did scientists determine this?
Answer:
Humans drinking raw date palm sap was the cause of the Nipah virus outbreak in Bangladesh. Scientists found Nipah virus in bat excretions and discovered that bats were contaminating date palm juice with their excretions (saliva, urine).
Explanation:
Nipah virus can spread to people from:
1) Direct contact with infected animals, such as bats or pigs, or their body fluids (such as blood, urine or saliva).
2) Consuming food products that have been contaminated by body fluids of infected animals (such as palm sap or fruit contaminated by an infected bat).
The (_______) has increased consumer knowledge about the connection between food and health.
Answer:
link
Explanation:
i think
Answer:
the CORRECT answer is internet
Explanation:
Smallholders have historically been for-profit commercial horticulturalists rather than subsistence farmers.
True
False
Answer:
true
Explanation:
27. How many senators does each state have?*
3
1
4
2
Government
Answer:
2
Explanation:
Answer:
2
Explanation:
Describe two types of tissues and the jobs they perform.
Answer:
Muscle tissue
Nervous tissue
Explanation:
It's a specialised tissue found in animals which functions by contracting thereby applying forces to different parts of the body
Organised Cells in the nervous system which is the organ system that controls the body's movements,sends and carries to and from different parts of the body
how to find the energy that the food has
Explanation:
To calculate the energy available from a food, multiply the number of grams of carbohydrate, protein, and fat by 4,4, and 9, respectively. Then add the results together.
Which of these is based on a deduction?
a. If I tum the key in the ignition while stepping on the gas pedal, then my car will start.
b. My car battery is dead.
c. My car is out of gas.
O d. My car won't start.
Answer:
d
Explanation: