What condition should be met for the stellar parallax method to be useful?A.the star should be situated within the Milky Way
B.the star should be brighter than the Sun
C.the star should be close enough to the Sun to show a measurable parallax
D.the star should be visible with the naked eye
Answers
Answer:
The answer is: C. the star must be close enough to the Sun to show measurable parallax.
Explanation:
In the field of astronomy, parallax is called stellar parallax in distant stars.
The stars for which parallax measurements have been made are those that are relatively close to the sun on the galactic scale.
The answer is: C. the star must be close enough to the Sun to show measurable parallax.
Answer: c
Explanation:
Related Questions
Identify the systems that move your body,and explain how these systems work together? If you answer my question I'll answer one of yours..
In a zygotic life cycle:_________A. Haploid cells form gametes that fuse to produce thick-walled diploid zygotes capable of surviving stressful conditions.B. There is an alternation of generations.C. The zygote undergoes meiosis and produces many heat-resistant spores that increase the population size and aid in dispersal.D. Haploid cells form spores that fuse to produce thick-walled zygotes capable of surviving stressful conditions.E. none of the choices provided.
Consider the following prairie food chain. Tall grass is consumed by grasshoppers that, in turn, are eaten by mice, and the mice are eaten by prairie kingsnakes. Red-tailed hawks prey on mice and prairie kingsnakes. When a red-tailed hawk dies, bacteria, beetles, fungi, and many types of worms help break down the body. Which of the following correctly identifies a trophic level in this ecosystem? View Available Hint(s) A. The tall grass is a decomposer B. The red-tailed hawk is a secondary consumer. C. The worms are primary producers. D. Grasshoppers are primary consumers.
Two scientists are cutting samples of leaves for analysis. One scientist always clips a sample from the base of the leaf near the stem, and the other scientist always clips a sample from the tip of the leaf. what kind of error did the two scientist illustrate? A. procedural error B. calibration error C. measurement error D. unit error
Answers
B) 71%
C) 33%
D) 78%
Answers
You have the chance of rain
P(R) = 0.9
And the chance of wind and rain
P(R∩ W)=0.7
The probabilities of windy weather is
P(W)==
=0.78
The correct answer then is D) 78%
Answer:
78%
Explanation:
Answers
Lancelet exhibits the four basic characteristics of phylum Chordata. It has a dorsal nerve, a notochord, a post annul tail, and pharyngiall gill slit.
Jawless fish, cartilaginous fish, and bony fish have notochord when they were still young but it was replaced by a vertebral column as they mature.
Lancelets are included in the subphylum cephalochordata. Cephalochordates are gonochoristics. It means that the sexes are separate. Both sperm and eggs cells are released in the water where fertilization occurs.
Lancelets
Explanation:
It is the group of chordates that has a notochord and includes separate males and females. Lancelets are included in the subphylum Cephalochordata. Cephalochordates are gonochoristic. It means that the sexes are separate. Both sperm and egg cells are released in the water where fertilization occurs.
B. gene mapping
C. DNA fingerprinting
D. STR analysis
Answers
The right answer is gene mapping.
The act of mapping consists of determining the relative positions of the loci (genes or DNA sequences) on a chromosome. The binding maps are obtained from the recombination frequency between the loci. Physical maps are generally obtained by the use of in situ hybridization of cloned DNA fragments with metaphase chromosomes, or the use of somatic or hybrid irradiation hybrids.
Through gene mapping, mutations that cause Parkinson’s disease can be identified.
Further Explanation:
Parkinson’s disease is known to be a nervous system disorder that is progressive in nature and affects the movement of an individual. The symptoms begin slowly and generally start with a small very visible tremor in just one upper extremity. These tremors are common; however, the disorder also leads to hardness and restriction of movements. The familial cases of this can be the result of mutations in the following genes, LRRK2, PARK7, PINK1, PRKN, and SNCA.
Gene mapping illustrates the methods which are used to detect the locus of the gene as well as distances between the genes. The technique generally works by collecting molecular markers on their provided genome positions. These markers are in all types and can be viewed as one special kind of genetic marker while constructing the genome maps.
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Answer Details:
Grade: High school
Subject: Biology
Chapter: Genes and genetic diseases
Keywords:
Gene, gene mapping, mutations, markers, Parkinson’s disease, genome, distances, techniques, maps.
Answers
Answer;
-Core
-Radiative zone
-Conventive zone
Explanation;
-There are three main parts to the Sun's interior: the core, the radiative zone, and the convective zone. The core is at the center. It the hottest region, where the nuclear fusion reactions that power the Sun occur.
-The radiative or radiation zone; Its name is derived from the way energy is carried outward through this layer, carried by photons as thermal radiation.
-The third and final region of the solar interior is named the convective (or convection) zone. It is also named after the dominant mode of energy flow in this layer; heat moves upward via roiling convection, much like the bubbling motion in a pot of boiling oatmeal.
energy
other organisms
light