Sieve tubes are found in which vascular tissue

Answers

Answer 1
Answer: In plant anatomy, sieve tube elements, also called sieve tube members, are a specialised type of elongated cell in the phloem tissue of flowering plants. The ends of these cells are connected with other sieve tube members, and together they constitute the sieve tube.

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Answer 2
Answer:

Answer:

phloem tissue

Explanation:

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which model and explanation correctly demonstrates the interdependence of photosynthesis and cellular respiration?

Answers

The Calvin Cycle is a perfect example of the interdependence of photosynthesis and cellular respiration. It shows how both processes are essential for life to exist, and how one relies on the other to function properly.

This cycle illustrates how all living things are connected by a shared need for energy and demonstrates the importance of these two metabolic processes. Photosynthesis and cellular respiration are two vital processes that are essential for life. They are interdependent, meaning that one process relies on the other to function properly. The most accurate model of this interdependence is known as the “Calvin Cycle”.

The Calvin Cycle is a metabolic pathway that occurs in plants and other photosynthetic organisms. In this cycle, carbon dioxide enters the plant, and energy from the sun is used to convert it into glucose and other organic molecules. This glucose is then used as the source of energy for cellular respiration.

Cellular respiration is the process by which the energy from the glucose is released, and it occurs in the mitochondria of all living cells. In this process, oxygen is used to break down the glucose molecules, releasing energy in the form of ATP (adenosine triphosphate). This ATP is then used to power the cell's metabolic processes.

This cycle of photosynthesis and cellular respiration is essential for life to exist. Without photosynthesis, there would be no source of glucose and thus no energy for cellular respiration. Similarly, without cellular respiration, the energy from the glucose molecules would not be released, and the process of photosynthesis could not take place.

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What pair of statements about Blehert's and Behr's work represent an observation that was first made directly in the field and then a repeat, reinforcing observation made in the lab?Choose one or more:
A. A microbiologist with the U.S. Geological Survey grew crescent-shaped fungal spores in a lab on refrigerated plates.
B. A specialist with the New York State Health Department, on an exploration, found dead bats with white noses.
C. A specialist with the New York State Health Department detected crescent-shaped fungal spores when examining a sample swabbed directly from a living bat with a white nose.
D. A microbiologist with the U.S. Geological Survey grew crescent-shaped fungal spores in a lab at room temperature.

Answers

Answer:

The correct answer are option A. "A microbiologist with the U.S. Geological Survey grew crescent-shaped fungal spores in a lab on refrigerated plates" and option C. "A specialist with the New York State Health Department detected crescent-shaped fungal spores when examining a sample swabbed directly from a living bat with a white nose".

Explanation:

Doctor Blehert and Doctor Behr are two scientists that are studying the relationship between fungal disease and the development of the bat white nose syndrome. In order to prove that bat white nose syndrome is caused by a fungal disease Blehert and Behr first took samples in the field and later analyzed the samples in the laboratory. First, a specialist with the New York State Health Department detected crescent-shaped fungal spores when examining a sample swabbed directly from a living bat with a white nose. Later, the samples taken from the shaped fungal spores were grew in the laboratory on refrigerated plates by a microbiologist with the U.S. Geological Survey. After analyzing the samples, the scientists conclude that the bat white nose syndrome is caused by a fungal disease.

Final answer:

The pair of statements that represent a direct field observation and a reinforcing lab observation are 'A specialist found dead bats with white noses' and 'A microbiologist grew crescent-shaped fungal spores in the lab'. These statements show how an initial field observation of bats' white noses led to a lab study where the associated fungus was grown, solidifying the link between the two.

Explanation:

The correct pair of statements representing an observation made directly in the field and then reinforced in the lab are B and A respectively. Let's understand why:

B. A specialist with the New York State Health Department, on an exploration, found dead bats with white noses. This constitutes an initial observation in the field of study. The specialist observed that bats in their natural habitat had contracted a peculiar condition (white noses) and were subsequently dying. This spurred the need for further investigation.

A. A microbiologist with the U.S. Geological Survey grew crescent-shaped fungal spores in a lab on refrigerated plates. After the field observation, the phenomena was then studied in a controlled lab setting. The microbiologist was able to grow the similarly crescent-shaped fungal spores, that were suspected to cause the white noses, in lab conditions. This confirmed the field observation and further strengthened the potential link between the observed white-nose condition in bats and the presence of this particular fungus.

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Humans, dimples are a dominant trait. Predict the percentage of children that will have dimples if one parent is heterozygous for dimples and the other parent does not have dimples.(1 point)0 percent
100 percent
50 percent
25 percent

If a white horse and a black horse are bred together, what percentage of the offspring will be roan and express both colors in their hair?1 point)


100 percent

0 percent


25 percent


50 percent

Answers

The dominant traits are those that are expressed phenotypically, whereas recessive traits are masked by the dominant traits.

  • The percent of offspring having dimples are 50 percent.
  • The percent of offspring will be roan and expressing both the colors will be 100%.

The dimples are the traits, which are expressed phenotypically.

Let the alleles for the heterozygous parent with dimples be Dd. The other parent not having dimples will have the genotype dd.

The combination between the Dd and dd will result in:

Dd, Dd - heterozygous combination of alleles

dd, dd - purebred for the alleles

Similarly, the genotype of the hair color of the horse is white  and black .

The cross between the parental genotype will result in 100% heterozygous offspring with genotype \text {C}_w \text{C}_b

The result will be due to codominance, in which both the characters of the parent will be expressed in the offspring such that the horse will have black and white colors.  

Therefore, the answers will be 50% and 100%.  

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Answer:

1) 50 percent

2) 50 percent

Explanation:

In garden peas, the allele for tall plants is dominant over the allele for short plants. A true-breeding tall plant is crossed with a short plant, and one of their offspring is test crossed. Out of 20 offspring resulting from the test cross, about how many should be tall?A. 5
B. 20
C. 10
D. 0
E. 1/2

Answers

Answer: Option C

Out of the 20 resulting offspring of the test cross, 10 (50%) will be tall.

Explanation:

Let True-breeding tall plant be "TT"

Let short plant be tt

On crossing, all offspring will be "Tt"

Test cross involves the breeding of an individual with a phenotypically recessive individual. The test cross of offspring "Tt" against "tt" will then yield an equal ratio (1:1) of Tt to tt.

Thus, out of the 20 resulting offspring of the test cross, only 10 (50%) will be tall.

Final answer:

When a true-breeding tall pea plant is crossed with a short plant, all the F1 offspring will be heterozygous tall. Upon performing a test cross of a heterozygous F1 tall plant with a short plant, about half of the resulting offspring should be tall. Thus, out of 20 offspring, approximately 10 (Option C) should be tall.

Explanation:

In garden peas, the allele for tall plants (T) is dominant over the allele for short plants (t). A true-breeding tall plant has two copies of the dominant allele (TT), while a short plant has two recessive alleles (tt). When you perform a test cross between a heterozygous tall plant (Tt) and a short plant (tt), the results should theoretically yield a 1:1 ratio of tall to short offspring. Since the question states the tall plant is true-breeding and crossed with a short plant, all offspring from this initial cross would be heterozygous tall (Tt). Each of these offspring, when test crossed with a short (tt) plant, would produce tall and short offspring in a 1:1 ratio.

Therefore, out of 20 offspring from the test cross, approximately half should be tall and half should be short. So, the expected number of tall offspring would be about 10.

The correct answer to the question is option C- 10.

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An organism that contains two different alleles for a trait is said to be _______ for that trait.A.
heterozygous
B.
recessive
C.
homozygous
D.
dominant

Answers

Answer:

The answer is A. Heterozygous

Answer:

A. heterozygous

Explanation:

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10 differences between animal cells and plant cells

Answers

Answer:

Following are the difference to the given question:

Explanation:

  • Plant cells have a wall of a cell, while cells of animals wouldn't. Cell membranes offer plants support and shape.
  • Chloroplasts in plant cells do not occur, however, in animal cells. Chloroplasts allow plants can grow things via photosynthesizing.
  • Plant cells typically get a vacuole(s) that is one or even more big, whereas animal cells are vacuous, whether any.
  • Large vesicles assist shape the plant and enable food and water to be store for future use.
  • In animal cells, the storing function takes a smaller part and the vacuoles, therefore, are smaller.
  • A plant cell is square in its structural way and an animal cell is often spherical and irregular.
  • The cell of a plant has a vesicle in its big form which is significantly smaller than the plant cell, as well as the animal cell was the or more vacuoles. In general, a vacuole is a storage area for the cells to store water.
  • There is no chloroplast inside the animal cell. Chloroplast is a plant cell that produces photosynthesis from its food. The plants have a green color.
  • The nucleus is located throughout the cell of the plant on the other edge of the peripheral cytoplasm, while the nucleus is in the animal's core.
  • Plant cells store food of starch while animal cells store food of glucose.
  • The mitochondria in the plant are fewer and also have tube cristae, whereas the animal cells have grown in various.
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