please answer fast
Answer:
Explanation:
The primary root, or radicle, is the first organ to appear when a seed germinates. It grows downward into the soil, anchoring the seedling. In gymnosperms and dicotyledons (angiosperms with two seed leaves), the radicle becomes a taproot
B. In maternal effect, an offspring will have the genotype of their mother.
C. In a reciprocal cross, if an offspring has the mother's phenotype for both crosses, cytoplasmic inheritance is responsible.
D. The direction of shell coiling in Lymnaea peregra is influenced by the orientation of the first cleavage division.
E. It is safe to say that a maternal effect is caused by the genotype, not the phenotype, of the parent producing the egg.
Answer:
Answer is D.
Explanation:
The first cleavage division can be explained or described as the series of first cellular division of the zygote after fertilization.
In this case, the process of recoiling of the shell of the snail can not be categorized as one of the examples at this stage.
B. 19.9%.
C. 21.5%.
D. 13.4%.
Paramecium use cilia for locomotion. So the correct option is D.
In ethology, locomotion refers to any of the many animal motions that enable creatures to move from one location to another. All creatures need control and propulsive systems to move about. A contractile structure—usually muscle—is used by animals' various propulsion systems to produce propulsion force.
The neuralsystem initiates and coordinates the number, quality, and position of contractions; it is via this coordination that rhythmic motions of the body's appendages or core result in locomotion. The great majority of the many physical settings (ecological niches) that animals successfully occupy on Earth may be categorized into four categories for the sake of discussing locomotion: airborne (including arboreal), aquatic, fossorial (underground), and terrestrial.
Gravity and drag, the physical impediments to movement, are the same in each environment; only their strengths vary. Here, gravity is defined as a body's weight and inertia (resistance to motion), while drag is defined as any movement that reduces force.
Therefore the correct option is D.
Read more about locomotion, here
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Answer: paramecia, cilia
Explanation: Paramecia use cilia to travel. Euglenas whip through water using a flagella to travel. The volvox uses cilia while the amoeba uses its pseudopodia.
C. Integumentary, nervous, muscular
D. Circulatory, digestive, nervous
Answer:
yeah, you are right. it is C
Explanation:
The diagram depicts a reflex arc which shows the pathway order of the reflex arc and the systems involved in the pathway. this is a somatic reflex arc (affecting muscles) The integumentary system is the first which is a organ system that is made up of the skin, hair, nails and exocrine glands. here, somatic receptors in the skin receives the stimulus, then afferent nerve fibers carry this signals to the spinal cord (nervous system: CNS and the PNS; the brain and spinal cord is under the CNS). this is the second system involved.
In the reflex arc, the action potential does not travel to the brain, so results are processed faster. these impulses synapse in the spinal cord. efferent nerve fiber then carry the motor nerve signals to the muscles (muscular system). the effector muscle that has been stimulated then brings about the response.
In summary, it is carrying sensory information from the receptor to the spinal cord and then response generated by the spinal cord is taken to the muscles. Analysis of the signal will then be done after the action with the brain receiving this sensory input.
because the ocean has many more molecules than a pot of water
B
because ocean water has a higher temperature than boiling water
C
because the salt in the ocean causes ocean water to hold on to more heat
D
because molecules of ocean water moves more slowly than those of boiling water
Answer:
A.bevause the ocean had more molecule than a pot of water.
The ocean contains more heat energy than a pot of boiling water because it has many more molecules.
The correct answer is A) because the ocean has many more molecules than a pot of water.
In terms of heat energy, the total amount of energy in a substance is directly proportional to the number of molecules it contains. Therefore, the ocean, which is much larger than a pot of boiling water, contains a significantly higher number of molecules, resulting in more heat energy.
For example, if we compare a small pot of boiling water to the vast ocean, the ocean contains a much larger volume of water, and therefore, a greater number of molecules that contribute to its heat energy.
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