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galina1969 [7]
3 years ago
14

Where would a pictograph not appear in your experiment outline

Biology
1 answer:
Vinvika [58]3 years ago
3 0
The answer is observations
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1. a closed circulatory system is one in which
lys-0071 [83]
Just took the quick check 100%!! Lets keep it 100.

1. B  (Blood flows through a system of blood vessels and throughout the body)
2.C (I<span>n blood vessels and sinuses)
3.B (</span><span>Oysters do not move around, but squid are very active)
4.D (</span><span>It is difficult for single pump to force blood through the entire system of a large animal)
5.A (</span><span>Exchanging carbon dioxide for oxygen from the air)</span>
6 0
3 years ago
Read 2 more answers
While the introduction of the mutant synthetase gene restored some of the growth characteristics, this strain still does not gro
katen-ka-za [31]

Answer:

A and D

Explanation:

Transfer ribonucleic acid (tRNA) is a type of RNA that decodes mRNA (messenger RNA) into protein. This phenomenon is known as translation.

If the strain of mutant synthetase gene does not grow fast despite having growth characteristics, the following possibilities could happen:

  • Sometimes histidine tRNA sends asparagine instead of histidine to other proteins where histidine residue should have been present for growth.
  • The normal synthetase might be present but not in an adequate amount.
6 0
2 years ago
Read each of the sentences that describe what happens either during mitosis or meiosis. Drag each sentence into the correct box.
seraphim [82]

Complete question:

In the attached files you will find the sentences used to complete this problem, and their corresponding boxes.

Answer:

Mitosis:

  • Homologous chromosomes do not pair
  • One row of chromosomes line up in the center of the cell
  • The cell nucleus divide only once
  • Two diploid daughter cells form that are identical to their parental cells

Meiosis:

  • Each replicated chromosome pair with its corresponding homologous pair
  • Tetrads form, and crossing-over sometimes occur
  • Paired homologous chromosomes line up across the center of the cell
  • Four haploid daughter cells form that are not identical to their parental cells

Explanation:  

There are two principal types of cells in the organism: Somatic diploid cells (2n) that reproduce by the process of mitosis, and germ cells that are diploid reproductive cells in charge of gamete production. These germ cells suffer both mitosis (to form more sexual cells) and meiosis (giving place to haploid gametes, called sperm and egg cells, through the gametogenesis process). Both somatic cells and germinal cells will end their cycle becoming two daughter cells with the same genetic dotation.

Gametes´destiny is to merge in the process of fecundation, during which a new diploid cell called zygote emerges through fertilization. The zygote is a complete cell from the structural point of view that suffer successive mitosis to form the new organism.

  • <u>Meiosis</u> is a process by which, from a diploid germ cell (2n), four daughter cells with a haploid chromosome number (n) are produced. Each daughter cell has half of the chromosomes of the original one. There are two phases in meiosis: the first one in which occurs a chromosome´s reduction division, and the second one where the cell suffers a new division, but this one is not a reductive one.
  1. In the first phase, Meiosis I: Chromosomes condensate and became visible. Occurs crossing-over between homologous chromosomes in the equatorial plane. Crossin-over makes the daughter cells to be genetically different from the original one. After crossing-over, homologous chromosomes get separated again. Then occurs cytokinesis and chromosomes became lax again.
  2. In the second phase, Meiosis II: Chromosomes condensate again, they join the spindle apparatus and migrate to the equatorial plane. Centromeres divide and each chromatid goes forward to each pole. Once in the poles the chromosomes became lax again and occur cytokinesis.
  • Mitosis is a process by which, from a diploid somatic cell (2n), two daughter diploid cells (2n) are produced. During mitosis, the cell duplicates and then separates. Mitosis occurs in only one phase. In the prophase, it occurs chromosomes condensation and nuclear membrane breaks. During the metaphase, fibers of the spindle apparatus capture chromosomes and take them toward the center of the cell, to the equatorial plane, where they line up. Each chromatid joins with a microtubule of opposites poles. Sister chromatids are held together until they reach the Anaphase, during which other enzymes are activated to break the bonds and separate the chromatids, which migrate to the opposite poles. In telophase, the duplicated chromosomes are already in the corresponding poles, and the nuclear membrane forms again in each pole. Finally, occurs cytokinesis.  

5 0
3 years ago
What is the main source of energy for most organisms??
Neporo4naja [7]

Answer:

The Sun is the main source of energy for most organisms

Explanation:

Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.

6 0
3 years ago
Movement of phloem sap from a source to a sink ________.
Olin [163]

Bulk flow refers to the movement of phloem sap from a source to a sink in plants.

<h3>What is Phloem?</h3>

This is a vascular tissue found in plants which helps to transport and distribution of the organic nutrients derived from photosynthesis.

Bulk flow occur when these nutrients present in the phloem sap are moved  from source to sink.

Read more about Phloem here brainly.com/question/983997

5 0
2 years ago
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