Answer: There are actually three, Kepler's laws that is, of planetary motion: 1) every planet's orbit is an ellipse with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3) the square of a planet's orbital period is proportional to the cube of the semi-major axis of its
Explanation:
Which best describes how a developing fetus changes during the third
trimester?
A. It grows a heart.
B. It grows larger
C. It grows organs.
D. It grows limbs.
SUBMIT
During the third trimester of pregnancy, the fetus grows in size and weight. So option B is correct.
What features of the baby develop during the third trimester?During the first trimester, the zygote develops into a moving fetus which has working organs such as eyes and ears. In the second trimester, the features of the baby are developed and the movement of the baby can be felt. In the third trimester, the fetus grows in size and weight.
The third trimester starts from the 27th week and continues until the end of the pregnancy. The lungs of the baby are still developing. At the end of the third trimester, the length of the fetus is 19-21 inches and the weight is about 6-9 pounds. In the end, the baby will gain more weight and is prepared for delivery.
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The process that produces identical offspring quickly is
Answer:
Explanation:
Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent. A single individual can produce offspring asexually and large numbers of offspring can be produced quickly.
Head lice, small insects, are found on two elementary school students. As these two students
interact on the playground, some lice move from one student to the other. Which of the following is
most likely taking place in this scenario?
A-Gene flow
B-genetic drift
C-natural selection
D-nonrandom mating
Why is homeostasis particularly more important to unicellular organisms than multicellular organisms?
Please help!!!!!!!!
Define evolution in genetic terms.
Answer: The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
Explanation:
Answer:
Evolution is defined as the process of growth and development or the theory that organisms have grown and developed from past organisms. ... An example of evolution is the theory started by Charles Darwin that theorizes about how humans came to be in their present form.
hope this helps.
Is this Heterozygous, hom0zygous dominant, hom0zygous recessive?
Which type of mutation is likely to have the least effect on the protein that it codes for?
substitution,insertion,
deletion,inversion
The table below shows the characteristics of three components of the solar system labeled A, B, and C. Which choice identifies the components in the correct order?
A Comet, asteroid, sun
B Moon, planet, sun
C Moon, sun, planet
D Sun, planet, moon
Answer:
its B for sure.
Explanation:
Answer: B: moon, planet, and sun
Explanation:
The central nervous system (CNS) is composed of the spinal cord and brain. ALL BUT ONE of the choices below describe
function of the spinal cord.
A)
serves as a minor reflex center
B)
conducts motor information from the brain to various
effectors
C)
processes sensory inputs and initiates appropriate motor outputs
D)
conducts sensory information from the peripheral nervous system to the
brain
Answer:
c)
Explanation:
The central nervous system (CNS) processes sensory inputs and initiates appropriate motor outputs. Therefore, option C is correct.
What is the central nervous system?The brain and spinal cord make up the central nervous system. The brain directs our thoughts, memories, movements, and emotions. Between the brain and the nerves that run throughout the body, the spinal cord relays messages.
It regulates cognition, personality, memory, emotion, speech, and the capacity to feel and move. The corpus callosum, a band of nerve fibers in the middle of the brain, connects the left and right hemispheres of the brain.
Thus, the central nervous system (CNS) processes sensory inputs and initiates appropriate motor outputs. Therefore, option C is correct.
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Use the drop-down menus to complete the statements. In the first step of meiosis I, DNA condenses to form chromosomes . In the second step, ✔ Each pair of chromosomes lines up in the center of the cell . In the third step, . In the final step of meiosis I, .
Answer:
Prophase I, metaphase I, anaphase I and telophase I.
Explanation:
Prophase I is the phase of meiosis I in which DNA condenses to form chromosomes whereas in metaphase I, each pair of chromosomes lines up in the center of the cell. In anaphase I, each pair of chromosomes is separated from one another which is pulled by the spindle to opposite poles of the cell. In telophase I, the duplicated genetic material is separated that leads to two identical daughter cells.
A mouse running away from the sound of an owl’s wings is an example of the mouse’s ability to
Answer:
Survive
Explanation:
There may be multiple answers, but the mouse is able to:
Reflexes
Sense
Movement
Instincts
Be aware
These factors can help escape the owl.
Answer:
Survive
Explanation:
What are two different ways cells communicate and explain how this form of communication is effective?
Answer:
There are many different ways that cells can connect to each other. The three main ways for cells to connect with each other are: gap junctions, tight junctions, and desmosomes.
Explanation:
Cell Signaling is an important facet of biological life. It allows cells to perceive and respond to the extracellular environment allowing development, growth, immunity, etc. Additionally, errors in cell signaling may result in cancer growth, diabetes.
where is testosterone producde
Answer:
it is produced by gonads
Answer:
Its produced by the gonads, which is a cell in the male testes and the woman ovaries, hope this helps
Explanation:
hi i need your help guys! Using the periodic table, fill in the following table with the number of electrons in each energy level of the element given.
n = 1 level n = 2 level n = 3 level n = 4 level
Element (maximum 2) (maximum 8) (maximum 18) -----------
Carbon- ________ ________ ________ _______
i think its
carbon- 2 (there are two in the n=1 level) 4 (there are four in the n=2 level)
i might be wrong, but hope this helps :)
Electrons in atoms are arranged in energy levels. The electrons in the energy levels of carbon are;
n= 1 ------ 2 electrons
n = 2 ----- 4 electrons
n =3 ----- 0 electrons
n = 4 ----- 0 electrons
Carbon has the electronic configuration; 1s2 2s2 2p2.
This means that there are only two electrons in the n-1 level and there are four electrons in the n=2 level.
This makes a total of six electrons in carbon as shown.
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Muchas especies animales son territoriales al menos durante una parte del año. Eso significa que defienden un territorio más o menos amplio en el que no dejan entrar a otros individuos de su especie. A veces, el territorio es individual, otras es de una pareja y, en otros casos, corresponde a un grupo. Explica qué distribución origina cada uno de estos comportamientos.
Answer:
Por dependencia de otros organismos y competencia.
Explicación:
Estos diferentes tipos de comportamiento se deben a la dependencia de los organismos entre sí. Algunos organismos tienen la capacidad de vivir solos y cumplir con sus requisitos de vida por lo que no permiten que otros organismos ingresen a su espacio, algunos viven en parejas y algunos organismos viven en grupos o colonias porque no pueden sobrevivir solos en ese ambiente por lo que nosotros Se puede decir que algunos organismos dependen de otros organismos y algunos pueden sobrevivir solos.
Which of the peas' traits,
Yellow or Green, is
recessive? Explain your
answer.
The strangler fig is a vine that starts out as a seed in the tree canopy of the rain forest. It drops its roots down from the canopy to the forest floor. By sprouting in the rain-forest canopy, the strangler fig seedling is exposed to more-
The strangler fig is a vine that starts out as a seed in the tree canopy of the rain forest. It drops its roots down from the canopy to the forest floor. By sprouting in the rain-forest canopy, the strangler fig seedling is exposed to more-
The strangler fig plant shows an aggressive growth habit as an adaptation that allowed its growth. It drops to the forest floor and develops its seeds by exposure to sunlight. Thus, option A is correct.
What are adaptations?Adaptations are a crucial part of the evolutionary process that allows the organism to fit and survive in altered environmental conditions. It has been due to the process of natural selection that gets inherited.
The aggressive growth habit of the strangler fig vine is to ensure its survival in the rainforest covered in canopies. The seed of the plants uses sunlight and nutrients to grow at a faster rate and hangs their roots on the first floor. The sunlight increases its rate of germination.
Therefore, option A. sunlight is used for germinating the fig seeds.
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The question is incomplete, but the most probable option were,
sunlightsoilnutrientsconsumersPlace the tiles in order.
Answer:
nebula, protostar, supergiant, supernova, neutron star
How do autotrophs and heterotrophs benefit one another within an ecosystem?
A. Autotrophs produce oxygen and carbon dioxide for heterotrophs, which produce chemical energy for autotrophs.
B. Autotrophs synthesize ATP and other nutrients for heterotrophs, which produce oxygen for autotrophs.
C. Autotrophs fix carbon and produce oxygen for heterotrophs, which produce carbon dioxide for autotrophs.
D. Autotrophs transform chemical energy into radiant energy for heterotrophs, which fix carbon for autotrophs.
Answer: The answer is A,
Explanation:
Answer:
C. Autotrophs fix carbon and produce oxygen for heterotrophs, which produce carbon dioxide for autotrophs.
Explanation:
Autotrophs are organisms that conduct photosynthesis. One of the products of photosynthesis is oxygen, which is released into the air. Heterotrophs then take in this oxygen and give out carbon, which then the plants take in and use. This cycle goes endlessly on and on.
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Hierarchy is a theme of biology that we see in several different topics Genetics
is one such area. Which sequence has the terms in the correct sequence from
LARGEST to SMALLEST in terms of molecular size?
A. Genome, Chromosome, Gene, Nucleotide, Deoxyribose
B. Chromosome, Nucleotide, Genome, Gene, Deoxyribose
C. Deoxyribose, Nucleotide, Gene, Chromosome, Genome
D. Genome, Gene, Chromosome, Nucleotide, Deoxyribose
Answer:
A. Genome, Chromosome, Gene, Nucleotide, Deoxyribose
Explanation:
According to this question, genetics as a branch of Biology is not exclusive of hierarchical basis. The following is an orderly sequence from LARGEST to SMALLEST in terms of molecular size:
Genome - Chromosome - Gene - Nucleotide - Deoxyribose
- The GENOME constitutes the whole genetic make up of an organism. This includes all the chromosomes contained in that organism.
- CHROMOSOME is the structure on which the inheritable unit called GENE is found.
- GENE is the molecular unit of inheritance which is made up of nucleotides.
- NUCLEOTIDES are monomers of nucleic acids made up of pentose sugar (dexyribose or ribose), nitrogenous base, phosphate group.
- DEOXYRIBOSE is a five carbon sugar that forms part of the structure of a nucleotide.
What is yeast and why is it used for making bread?
Answer:
yeast is a micro organism
It is a fungi
it is used in making breads as it helps bread to become spongy and soft to eat.
this process is known as fermentation
In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?
What is the difference between a 'placental mammal' and a 'marsupial mammal?
Explanation:
A placental mammal is a mammal that give birth to fully developed live young . A marsupial mammal is a mammal that give birth to live young
What two symbols do all modern electronic devices use to transfer information?
Answer:
Up and Down Arrow
Explanation:
could an ant. eat an earthworm or vise versa
Answer:
yes, if the other is dead
Explanation:
both ants and worms eat dead animals. since both ants and worms die. They can eat eachothers bodies after death.
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(2 points) The photograph below shows a pill bug. Pill bugs are small animals frequently found in wooded areas near decomposing organic material.
Pill bugs are known to prefer wet areas to dry areas. When in a high-humidity environment, they move slowly. When the air is drier, they move more quickly. What type of animal movement is this?
If you tap a pillbug with a stick, it rolls up into a ball. If this happens every time, and carries through to completion, what is this type of behavior called?
How are clouds formed? OR What does water
vapor tum into once it rises into the
atmosphere?
The activation of complement is effective at initiating pathogen engulfment and destruction. This immune-protective process is made possible by:
Answer:
phagocytes that have receptors for the C3b component in order to engulf and destroy pathogens
Explanation:
The complement system refers to an immune mechanism by which plasma proteins are activated by pathogens and their binding to antibodies, triggering reactions on the pathogen surface that active components with effector functions. The complement system is an essential component of the innate immune response. Phagocytic cells have receptors for the C3b component in order to bind to C3b-coated cells/particles preparatory to phagocytosis. The C3b receptor is a glycoprotein that serves to regulate the complement system by inhibiting the activation of C3 and C5 convertases which cleave C3 and C5 and thus mediate complement effector functions.
whats a good hypotheseis for a rock and mineral classification bvirtual lab
need more info to see what the problem
Many eukaryotic cells can be grown in tissue culture in the laboratory. Suppose you have two tissue cultures, one in G1 phase and one in S
phase. How would you determine which culture was in G, and which was in S?
I could look for growth and synthesis of proteins and other macromolecules as well as increase in organelles, which would show a culture in G1. DNA being synthesized would show in cells in the S phase.
The best way to determine if the cell is the G or S phase is by looking at the state of the DNA molecule, and the presence of histones, centrioles, and spindle fibers.
What is the interphase?
The interphase occurs before cell division. It is composed of the G1, S, and G2 stages.
During the G1 stage, the cell duplicates in size. The organelles and other cytoplasmatic structures duplicate. The high intense biochemical activity is characteristic of this stage.During the S stage occurs the DNI replication process. At this point, also happens the synthesis of histones and other associated proteins. This is the only stage where the DNI molecule is replicated. The G2 stage is the final one before the cellular division. Here begins the slow process of DNI condensation. Duplication of centrioles completes. Structures such as spindle fibers are assembled.To determine which culture was in G stage, and which was in S stage, I would look at DNA molecule. The only stage in which DNA duplicates is during the S phase, so
If organelles are duplicated but not DNA, it is G1 stageIf organelles are duplicated as well as DNA, but the molecule is still lax, it is S phase. At this point there are also histones.If organelles are duplicated and DNA molecule began to condensate it is G2 phase. At this point there are also centrioles and spindle fibers.You can learn more about the interphase at
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