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Nookie1986 [14]
3 years ago
8

An arthropod has all the following characteristics except:

Biology
1 answer:
katovenus [111]3 years ago
8 0

Answer:

b. pseudocoelom

Explanation:

A pseudocoelom is a false body cavity of some invertebrates which occupies the space localized between the mesoderm and the endoderm of the gut. This false cavity is found in nematodes.

Arthropods exhibit:

1- Bilateral symmetry because both opposite sides of the body are similar,

2- they are protostomes because the blastopore becomes the mouth during embryonic development,

3- they have true tissues because tissues are formed by groups of cells which share a common function, and finally,

4-arthropods are triploblastic because they are formed by three germ embryonic layers (endoderm, mesoderm and ectoderm).

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Can someone help please?
Morgarella [4.7K]

Answer:

https://youtu.be/dQw4w9WgXcQ

Explanation:

copy it open a new tab paste it search it and then theres a vid of me explaing it and the answer

3 0
3 years ago
If you cross an Aa individual with another Aa individual, what will the genotype ratio be in the next generation? What will be t
kirill [66]

Answer:

Aa x Aa makes Aa because its a dominant gene. each square represents 25% so if u have 2 squares with Aa for example the ratio will be 2:4 (so 50%) if the gene is recessive then for the next generation it will go down to 25% unless another Aa allele is introduced in the next generation

Explanation:

6 0
3 years ago
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At a pH below 3.5, fats and hypertonicity in the duodenum decrease gastric motility by what mechanisms
Vesna [10]

Answer:

glucagon

Explanation:

3 0
3 years ago
Herbicides are being used to kill weeds in a nearby field. The plants absorb the herbicides from the soil. Which organelle in th
gavmur [86]

Answer: The correct answer is Vacuole

Explanation:

The vacuole is an organelle found in the central portion of plant cells, and is usually filled with cell sap that acts as a "store house" for many substances entering into the cell.

Therefore, the herbicide waste absorbed by the plants will be stored in the VACUOLE.

6 0
3 years ago
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At the end of meiosis i, there are two haploid cells, each with two sister chromatids per chromosome. True or false?.
jok3333 [9.3K]

True.

At the end of meiosis I, there are two haploid cells.

<h3>What is the process of meiosis I?</h3>

Meiosis I refers to the initial nuclear division that takes place when gametes are formed. Due to the fact that the resulting cells have half as many chromosomes as the parent cell, it is also referred to as the reduction division. Prophase I, Metaphase I, Anaphase I, and Telophase I are the four phases that make up Meiosis I.

Prophase I:

The chromosomes condense during prophase I and become apparent inside the nucleus. Following this chromosomal condensation, each chromosome pair's members align adjacent to one another and are referred to as homologous chromosomes because of their identical size and gene content.

At this stage, a mechanism known as synaptic attachment occurs between the two chromosomes in each pair along their lengths. Then, while the homologous chromosomes are tightly coupled, the individuals within each pair cross over, also known as recombination, to exchange neighboring pieces of DNA. The nuclear membrane eventually starts to deteriorate after the conclusion of prophase I.

Metaphase I:

Microtubules leave the spindle at the beginning of metaphase I and join the kinetochore close to the centromere of each chromosome. In specifically, microtubules from one spindle side bind to one chromosome while those from the other spindle side adhere to the other chromosome in each homologous pair. The chromosomal pairs subsequently align themselves along the equator of the cell, forming the metaphase plate, with the assistance of these microtubules.

Anaphase I:

The homologous chromosomes are separated during anaphase I by the disintegration and contraction of the microtubules, which causes the two chromosomes in each pair to be drawn toward the opposite ends of the cell. Because of this division, each daughter cell that emerges from meiosis I will have half as many chromosomes following interphase as the original parent cell. Additionally, each chromosome's sister chromatid still has a connection.

Telophase I:

In telophase I, the cytoplasm organizes and separates into two as the new chromosomes approach the spindle. Now there are two cells, and each one has half as many chromosomes as its parent cell did. The recombination that took place during prophase I also caused the two daughter cells to not be genetically identical to one another.

Learn more about meiosis I here:

brainly.com/question/2095046

#SPJ4

6 0
1 year ago
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