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agasfer [191]
3 years ago
9

Which of the following statements is true?

Biology
2 answers:
BartSMP [9]3 years ago
6 0

Answer:

Answer B

Explanation:

The skull forms to become immovable in order to protect the brain.

balandron [24]3 years ago
5 0
B
The skull is comprised of many bones that undergo ossification as you grow to become immovable
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Could chromosomes 2 be homologous with chromosomes 1
SashulF [63]

Answer:

Homologous chromosomes are two pieces of DNA within a diploid organism which carry the same genes,

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3 years ago
Which of the answer choices is a cross section of the highlighted region of the mushroom in the picture
Daniel [21]

Answer:

<em>The mushroom in the picture and the option choices are included in the attached image. below...</em>

The highlighted region of the mushroom in the picture represents the mushroom's <em>"Gills"</em>, and paticularlly the multicellular structure carrying the <em>Hymenium</em> called <em>"the basidiocarp"</em> aka basidioma; the Hymenium or underside of the mushrooms is comprised of vertical plates arranged radially, and if a cross section of this is exposed by making a straight cut through the basidiocarp on a microscope, it would appear as option: (A. )

4 0
3 years ago
What could be a result of an injury to the dorsal column? loss of sensation to pressure and touch loss of control over all invol
IRINA_888 [86]

Answer:

The correct answer would be a loss of sensation to pressure and touch.

The dorsal column-medial lemniscus pathway abbreviated as DCML refers to the sensory pathway of the central nervous system (CNS) which transmits sensations of vibration, fine touch, proprioception, and two-point discrimination from the skin as well as joints.  

Thus, injury to the dorsal column would result in the loss of sensation to touch and pressure.

7 0
3 years ago
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Need help. Will give brainliest. Answer all these questions.
agasfer [191]

Answer:

1. The daughter cells are genetically identical because they each contain the same diploid chromosome complement as the original parent cell. It can be seen in the stages shown above that mitosis maintains the chromosome number or complement of a cell.

2.  Much of the growth in an adult is attributed to the growth plate in the bones, which is line of cells at each end of the bone that divides rapidly during puberty. As the bones elongate, the muscles also elongate as they are stimulated to grow by stretching and hormonal changes. When puberty is completed, the growth plate calcifies into solid bone and can no longer grow. Muscles can continue to enlarge with athletic activities and can sometimes split with excessive force, but muscle cells typically do not continue to divide. Cells such as your skin, hair, and interior mucus surface cells continue to divide because they are in direct contact with things from the outside world. Bone marrow also continually divides to produce red and white blood cells. Many other cells in your body do not continue cell division.

3. The number of Chromosomes stay the same when the cell divides because before a cell divides it produces new copies of the Chromosomes in the nucleus so when division takes place two genetically identical 'daughter cells', containing the same genes, are formed.

4. – in cells capable of dividing, the period between cell divisions is called interphase – cells spend most of their time in interphase because this is the phase where they perform their functions (obtaining energy, synthesizing products, repair damage, fight disease, duplicate their genetic material and get ready for division)

5. Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent. Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and bacteria. Many eukaryotic organisms including plants, animals, and fungi can also reproduce asexually. In vertebrates, the most common form of asexual reproduction is parthenogenesis which is typically used as an alternative to sexual reproduction in times when reproductive opportunities are limited. While all prokaryotes reproduce without the formation and fusion of gametes, mechanisms for lateral gene transfer such as conjugation, transformation and transduction can be likened to sexual reproduction in the sense of genetic recombination in meiosis.

6. Since each of the parent cell’s chromosomes were replicated during interphase, there are two copies of each chromosome in the cell during prophase. Once the chromatin has condensed into individual chromosomes, the genetically-identical chromosomes come together to form an “X” shape, called sister chromatids .

Explanation:

I hope it helps!!

8 0
3 years ago
The two nucleotide chains of RNA twist into a double helix shape. true or false ​
Sav [38]

Answer:

False

Explanation:

In DNA, there are four possible nitrogen bases – adenine (A), guanine (G), cytosine (C), and thymine (T). In DNA, nucleotides combine to form two long chains that intertwine with each other, like a ladder that has twisted into a spiral.

6 0
3 years ago
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