Hormones are ___________. chemicals released into the bloodstream by the endocrine glands chemicals found in the synaptic vesicles, which when released, have an effect on the next cell chemicals found in the soma, which when released, have an effect on the next cell chemicals released into the bloodstream by the brain

Organelles unique to animal cells include the centrosome, containing centrioles, and the lysosomes, which break down waste. Plant cells typically do not contain these organelles.

The organelles that can only be found in animal cells and not in most plant cells are the centrosome and lysosomes. The centrosome is a structure that plays a crucial role in cell division and contains a pair of centrioles, which are not present in plant cells. Additionally, lysosomes, which are often referred to as the cell's 'garbage disposal', are responsible for breaking down waste materials and cellular debris. Plant cells typically manage these processes in vacuoles, hence lysosomes are not common in plant cells.

While both plant and animal cells have microtubule organizing centers (MTOCs), only animal cells have centrioles associated with the MTOC in the complex known as the centrosome. Moreover, despite the eukaryotic cell's highly compartmentalized structure, certain organelles like lysosomes and centrosomes are unique features of animal cells, facilitating specific cellular functions such as waste management and cell division.

Of the following given choices;

a. Softer parts of the rock melted in sunlight, leaving behind empty holes.

b. Contact with hard pebbles during cooling left dents in the rock.

c. Bubbles formed in the magma when it was still in liquid form.

d. Crystals embedded in the rock fell off due to friction in Earth’s

The answer is; C

This occurs especially in thick magma that has a high silica content. This magma has low viscosity and cools fast when exposed to the atmosphere. Also due to its high viscosity, it tends to trap its gases in bubbles (especially magma with high gaseous content such as sulfur dioxide) and when the magma cools into rock, the gasses escape leaving behind pores in the rock. An example of such as rock is the pumice rock.

C for plato users :)

The tiny blood vessels that are responsible or have the role of transporting absorbed nutrients in our body is the capillaries. It is a network in which connects the venules and the arterioles in order to transport and connect nutrients for evenly distribution in the body.

Answer:  No, the above result does not support the plate tectonic theory.

       According to the plate tectonic theory, a plate either oceanic or continental plate moves at an average speed of about 0.5-10 cm per year.

                   Tectonisms has been taking place continuously and the distance the plate travels is estimated in terms of decades, as a small change in the distance in a year is not so prominent.

Gas giants have atmospheres composed primarily of helium and hydrogen

Ducks have specialized physical features like broad, flat, webbed feet and waterproof feathers that facilitate their function, enabling them to swim efficiently and stay buoyant in water.

Consider the example of a duck. Ducks have broad, flat, and webbed feet (their physical feature or structure). This structure facilitates their function, which is to swim efficiently in water. The webbing between their toes creates a larger surface area which forms a paddle, enabling them to push more water back and, hence, swim forward more effectively. The feet are also positioned toward the rear of their bodies, acting as rudders for maneuverability while swimming. Likewise, a duck's feathers are coated in a waterproofing oil, enabling them to stay dry and buoyant in water. This is an excellent example of how an organism's structure relates to its function, enhancing its survival in its specific environment.

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The aspects of cell structure best reveal evolutionary unity is that the genetic material is a good evidence of evolution because it's been conserved through time but with some slight differences.

The important aspect is the mitochondria. The mitochondria resulted from a symbiotic relationship between bacteria and pre-eukaryotes. Explaining why the mitochondria looks like a bacteria and has bacterial DNA.

The specialized cellular modifications are there are cellular modifications happening in multicellular organisms. That means, they have different types of cells, with different functions and will express different characteristics and the examples are Nerve cells have  dendrites  which is important to receive the electrical signal from another neuron, other cells don't have that and Sperm cells have a tail ( flagellum) in order to swim through the vagina and no other cell has that.

Therefore, The aspects of cell structure best reveal evolutionary unity is that the genetic material is a good evidence of evolution because it's been conserved through time but with some slight differences.

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Protein digestion starts in the stomach, where hydrochloric acid denatures proteins.

This denaturing process unfolds the proteins, making them more accessible for enzymatic digestion. Pepsinogen, inactive in gastric juice, is activated by HCl into pepsin, which then starts breaking down the peptide bonds, leading to the formation of shorter polypeptides and eventually amino acids.

Allele frequency refers to the distribution of alleles within a population, often expressed as a percentage or proportion. It's used in studying genetic diversity and evolution, and it doesn't equate to the number of different alleles an organism can have or traits in a population.

The allele frequency refers to the distribution of alleles in a population. To put it more specifically, it's the percentage or proportion of a particular allele for a specific gene in a given population. For instance, if 60% of a population has a particular allele for a certain trait, that would be the allele's frequency. It's crucial in studies of genetic diversity and evolution. The term doesn't refer to the number of different alleles an organism can have (which relates more to its genotype), the total number of different alleles in a population or the number of different traits in a population (which is more about phenotypic diversity).

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