BIOLOGY HIGH SCHOOL

Which of these descriptions of the behavior of chromosomes during meiosis explains Mendel's law of segregation?A. The two alleles for each gene separate as homologous chromosomes move apart during anaphase I.

B. The arrangement of each pair of homologous chromosomes on the metaphase plate during metaphase I is random with respect to the arrangements of other pairs.

C. Sister chromatids separate during anaphase II.

Answers

Answer 1
Answer:

Answer:

A. The two alleles for each gene separate as homologous chromosomes move apart during anaphase I.

Explanation:

Took it in Biology

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Energy must be transformed in ecosystems because ?

Answers

Answer : As per the law of conservation of energy.

Energy can neither be created nor be destroyed, it can only be transformed from one form to another.

So, it is quite important that the energy transformations takes place in an ecosystem. The energy must be kept transforming from one form to another.

According to law of conservation of energy,energy must be transformed in ecosystems because  energy can neither be created nor destroyed.

According to law of conservation of energy , it is evident that energy  is neither created nor destroyed rather it is restored at the end of a process.

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Julius Robert Mayer in the year 1812.The energy only transformed during the processes even in ecosystems it is conserved during the energy flow.

Learn more about law of conservation of energy,here:

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Which best defines homeostasis? 1. modifying the external environment
2. maintaining a stable internal environment
3. controlling what enters and exits the cell
4. movement of materials into the cell

Answers

The answer is (2) maintaining a stable internal environment.

Homeostasis is the process by which an organism tries to stabilise the internal body metabolism in response to external disturbances or changes. Example, when a person goes out into the snow, his body process will get overwhelmed by the sudden drop in the temperature. The body will try to stabilise its internal temperature by producing more heat in response to the cold exterior.

Answer:

B. maintaining a stable internal environment

Explanation:

When the body receives stimuli, which structure typically processes the stimuli?sensory nerve cell
motor nerve cell
brain
meninges

Answers

The brain recieves stimuli. Your brain does a lot of things for you. It is one of the busiest organs in your body. Your brain stimulis can enjoy various brain stimulis games to keep your brain healthy and sharp. if it stays healthy, everything follows after.

im pretty sure its C.........

Exons of a gene are defined as (A) the untranslated regions of the corresponding mRNA
(B) regions in the corresponding mRNA that are involved in initiation of transcription
(C) regions that are not transcribed by RNA polymerase
(D) regions that are excised from the corresponding protein after it is synthesized
(E) regions that remain in the corresponding mRNA after splicing

Answers

E) because the exons remain present within the final mature RNA product of that gene after introns have been removed by RNA splicing.

A _______ is a segment of a chromosome that codes for a specific protein.A: gene
B: crossed out
C: amino acid
D: nucleotide

Answers

In the sentence "A _______ is a segment of a chromosome that codes for a specific protein", the word that correctly completes the sentence is A: gene. In other words, a gene is a sequence of a chromosome that holds the code for protein synthesis. In the transcription, the gene is transcribed into messenger RNA (mRNA). In translation, mRNA is translated into proteins.
A _______ is a segment of a chromosome that codes for a specific protein.
A: gene

Explain how a plant gets and uses
energy

Answers

Answer:

it gets useful energy by the creation of sugar molecules through the process of Photosynthesis.

Explanation:
Sun water n soils in the groundnsjsksmsmskks
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