All categories

3 years ago

Why is a strong sense of taste so important for open ocean predators like oceanic whitetip sharks ?

2 answers:

6 0

Well, for one thing, to differentiate from plastic bags and garbage. This is especially true near the Great Pacific Garbage Patch.

Two, to track prey. Sharks can taste blood (or is it smell?) from far-off.

Allisa [31]3 years ago

4 0

Answer:

The predators and prey both evolve simultaneously, maintaining a relationship with one another. Predators will die if they do not get food, so they are directly dependent on the preys. These prey also evolves over a due course of time in order to avoid being consumed by predators. The predators that exist in the ocean bodies being the topmost dominating organisms are considered as the open ocean predators. Some of its examples are Great White Shark, Orca, and oceanic whitetip sharks.

These organisms have the ability to smell thousands of times far better than humans. They can sense and detect objects that are located in distant places within the water body. These strong senses of taste are important for them in order to survive and consume their food.

You might be interested in

Need help with this question for a grade

Amanda [17]

I would say the first one a comet. :)

5 0

3 years ago

Male peacocks have tail feathers that make up about 60% of their body length. during the mating season they contract muscles to

vovikov84 [41]

<span>The first part of the question is: The male's ability to shake its tail is the mechanistic cause of this behaviour. For the second part of the question, the mate choice is the adaptive function of this behaviour.</span>

7 0

3 years ago

Follicle cells in your scalp assemble proteins to build new hair. This most likely involves __________ reactions.

Zarrin [17]

Follicle cells in your scalp assemble proteins to build new hair. This most likely involves dehydration synthesis reactions.

Dehydration synthesis forms a peptide bond between amino acids and releases a water molecule. Amino acids connected via peptide bonds form a polypeptide chain, which then chemically interact with other polypeptides in order to create a complex three-dimensional structure of the protein.

8 0

3 years ago

Read 2 more answers

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.

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.
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

Question 1: Biodiversity and Ecosystem Health (20 points) a) Describe two ways of measuring biodiversity. Explain the relationsh

fredd [130]

Answer:

explanation below

Explanation:

A) Biodiversity is simply known as the number and variety of organisms found in a definite environment or region. Scientists have devised several ways of measuring biodiversity and the methods to be used depend on the type of organisms they are to count.

Canopy fogging – one of the ways of measuring biodiversity, has remained an effective way of obtaining details about the biodiversity of insects. It involves the act of spraying low dose of insecticides on a tree top, and when the insects fall from the trees, they are being collected on a large screen, that looks like a funnel.

Transact sampling is another way of measuring biodiversity and this time, with a transact line. The transact line is usually a measuring tape or rope that has been marked at set intervals.

b) Ecosystem stability is the ability of the ecosystem to maintain its steady state, even after it has experienced stress or disturbances. The biodiversity of an environment makes huge impact on the ecosystem stability in that particular area. It has been known that certain areas that have high levels of species and genetic diversity, are more likely going to an ecosystem that is complex, with varying food webs and biotic interactions. The increase in this complexity makes it more likely that the ecosystem of that area will rightly move back to a stable state whenever disturbances are experienced.

There are evaluated scientific evidence that shows that reduced biodiversity affects the transmission of communicable disease in agricultural crops, animals and humans. Loss of biodiversity usually increases susceptibility to diseases in plants and humans.

5 0

2 years ago