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aksik [14]
3 years ago
15

The diagram below shows the movement of matter in a portion of water cycle. what does P most likely represent?

Biology
2 answers:
Vedmedyk [2.9K]3 years ago
6 0

The correct answer is B) springs.

A place on the Earth’s surface where water appears at on its own is called a spring.  After rain or from snow water seeps into the ground. The water which seeps into the ground is collected in fractures and fissures in the bedrock. Water in the bedrock collected into the aquifers. When a fissure in the bedrock breaks the surface, the natural high water pressure under ground forces water above the earth surface and forms spring.

Mekhanik [1.2K]3 years ago
4 0
I'd say you go with B :)
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If the birth rate and death rate are balanced in a population, how might a population increase in size?
lara [203]

Answer:

Population change is governed by the balance between birth rates and death rates. If the birth rate stays the same and the death rate decreases, then population numbers will grow. If the birth rate increases and the death rate stays the same, then population will also grow

Explanation:

Natural increase in a population occurs where Birth rate is greater than death rate. ... Natural decrease occurs when death rate is greater than birth rate. This means that more deaths occur in a population than babies are born so population numbers decline

4 0
3 years ago
How does aging affect the nervous system?
nika2105 [10]

Answer:

As you age, your brain and nervous system go through natural changes. Your brain and spinal cord lose nerve cells and weight (atrophy). Nerve cells may begin to pass messages more slowly than in the past. Waste products can collect in the brain tissue as nerve cells break down.

Explanation:

8 0
3 years ago
The last time you saw the sisters pictured above, you considered how different protein molecules in their cells could lead to di
Andrew [12]

Answer:

recombination and independent segregation of chromosomes during meiosis  

Explanation:

Recombination and independent segregation of chromosomes represent the two most important meiotic mechanisms by which sisters from the same parents can inherit different gene variants and therefore look very different from each other:  

1- Independent assortment (segregation) of chromosomes: during meiosis, homologous chromosomes are randomly distributed in daughter cells (which will give rise to the gametes), and therefore separate independently of each other. It is for that reason that gametes have unique combinations of chromosomes, which increases genetic variation.

2- Recombination, also known as crossing over, refers to the exchange of chromosome segments between non-sister chromatids during meiosis. This mechanism is well-known to produce new gene variants (alleles) in the daughter cells. In consequence, recombination also increases the genetic variation of the resulting gametes that will produce offspring (in this case, different sisters).

6 0
3 years ago
when two true breeding pea plants that show contrasting traits are crossed 1) mention the pod shape in F1 generation 2)work out
agasfer [191]

Answer:

1.) Inflated pod shapes (Cc) in the F1 generation

2) See attached image for the work out of the cross from P generation to F2 generation.

3). CC- 1/4, Cc- 1/2, cc- 1/4

Explanation:

This question is related to the pod shape trait encoded by a single gene in pea plants. The alleles for inflated pod shape (C) is dominant over the allele for constricted pod shape (c). This means that allele "C" will be expressed over allele "c" in a heterozygous state.

The two truebreeding parent plants will have genotypes: CC (inflated pod shape) and cc (constricted pod shape). When these two plants are crossed, an all heterozygous plant with genotype: Cc will be formed in the F1 generation. Since, C is dominant over c, the F1 Cc plants will have an inflated pod shape phenotype.

The F1 Cc plants are self-crossed to produce the F2 generation offsprings i.e. Cc × Cc. The gametes C and c will be produced by each F1 parent, which will be used to draw a punnet square (see attached image). From the cross, offsprings with genotypes: CC, Cc and cc are produced in the F2 generation.

CC (phenotypically inflated pod shape)- 1/4

Cc (phenotypically inflated pod shape)- 1/2 or 2/4

cc (phenotypically constricted pod shape)- 1/4

3 0
3 years ago
Light in the understory is______, which promotes conversion of phytochrome to the _____form. Please choose the correct answer fr
Tju [1.3M]

The question does not have the option which are:

depleted in red light; inactive form

enriched in red light; active form

depleted in red light; active form

enriched in red light; inactive form

depleted in red light; inactive form

Answer:

depleted in red light; inactive form

Explanation:

The understory is the lower portion of the forest canopy which is characterised by the shade-tolerant species of the plants.

The light that reaches the lower portion or in the understory is depleted in the red light wavelength.

The phytochromes are the photoreceptor or blue-green pigment which response to the red and far-red wavelength. The low light converts the phytochrome to its inactive form Pr form which is reversible.

Thus, the selected option is correct.

7 0
4 years ago
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