What part of a squid is homologous to the foot of a snail?.

Explain five important things that can be determined by studying fossils.

Naddik [55]

Studying fossils allowed researchers to learn about organisms that lived long ago. The fossils provide as evolutionary evidence that shows how organisms in our present time have evolved over time and which common ancestors they are tied to. Fossils also provide information about climate change depending on the region and location they are found in. Fossils also date back to millenias ago, so fossils dated very far back in the past can help researchers infer that life had existed even farther than what they might have discovered. And finally, by studying fossils, you can determine how the organism may have died.

3 0

3 years ago

The red dots are salt. What type of solution is this cell in, and in which direction will

Leto [7]

Answer:

A) hypertonic, out of the cell.

Explanation:

When cells are exposed to high levels of salt (sodium chloride) they lose water by osmosis and shrink. The cytoplasm condenses and the movement of cellular components, such as the cytoskeleton and organelles, stops. Cells adapt to high salt by quickly importing salt in order to attract water and regain volume, at the expense of increased salt concentration. Unlike cell volume, the movements of cellular components are slow to recover and, depending on the dose of salt, may not recover fully.

5 0

3 years ago

Drag each of the following organs to the appropriate organ system. Labels can be used more than once if the organ is a major par

Sergio039 [100]

Answer:

Nervous-brain as the components of the central nervous system,together with the spinal cord.

Digestive-Stomach as the components of the upper digestive or alimentary canal.It is for temporary storage and digestion of foods.

Small intestine where final digestion and absorption takes place

Respiratory-Lungs.-paired in mammals is for exchange of gases.

-Trachea as part of the upper respiratory system,conducts airways to the lungs

Reproductive-Ovary female reproductive organ for ova production

Urinary-Ureter for conducting urine to the bladder from the kidney to penis and orifice in females to the exterior.

Cardiovascular( the heart and the blood vessels)- heart the pumping organ into the blood vessels.

Endocrine-Thyroid gland for secretions of thyroid hormones -T3 and T4.

Pancreas for insulin and glucagon productions,and helps in digestion,

Integumentary-Skin,for protection of the body.

Lymphatic-Spleen.This forms the lymphatic system for formation of un reabsorbed tissue fluids the lymph.

Skeletal-Bones for support and rigidity of the body,by attaching to the bones,

Muscular system-muscles for stability of the body in mammals.

Explanation:

5 0

3 years ago

Which of the following is typically associated with a large amount of organic material in a water supply?. A) Lower turbidity. B

Maru [420]

The one that is typically associated with a large amount of organic material in a water supply is : C. Fecal Coliform

It's a type of bacterium that lived in aquatic supply. The presence of Fecal Coliform in an aquatic environment indicate that the environment is contaminated with mammals' fecal wastes

hope this helps

8 0

4 years ago

This monarch butterfly has orange wings. Is orange<br> the genotype or the phenotype? Explain

Allisa [31]

Answer:

Phenotype

Explanation:

It's phenotype because a genotype is not a physical trait; a genotype means genes. It's phenotype because it a physical trait you can see. Lets say twins look the same on the outside but on the inside they have completely DNA. This is like how some butterflies look the same with orange wings but one might have a mutation in its genes.

8 0

3 years ago