BIOLOGY HIGH SCHOOL

What can be said about prokaryotes and eukaroytes?a. Prokaryotes always have a nucleus, but eukaryotes don't.
b. Both of these cell types contain a nucleus.
c. Eukaryotes always have a cell membrane, but prokaryotes don't.
d. Both of these cell types contain genetic material.

Answers

Answer 1
Answer: Eukaryotes always have a cell membrane, but prokaryotes don't. Eukaryotic and Prokaryotic cells are bothbuilding blocks of life in different organisms. The main difference of two isin its structures. Eukaryotic cells contain organelles that are foundinside membranes, like the nucleus, which stores chromosomes and DNA.Prokaryotic cells don't have a nucleus and no true chromosomes. Prokaryotic cellsare unicellular while eukaryotes are multicellular. The presence ofmitochondria, chloroplasts, and cell wall are all distinct to Eukaryotic cells.Eukaryotic cells are found in animals and plants, while bacteria and archaeahave prokaryotic cells. 

In terms of existence, prokaryotes have been onEarth for millions of years; while eukrayotic cells have come to existencethrough the process of evolution.  

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49. A car is parked on a hill. In order to keep the car from rolling downhill, how great must the static friction acting on the car be?a.
equal to the force pulling the car downhill
b.
greater than the force pulling the car downhill
c.
greater than the force pulling the car uphill
d.
smaller than the force pulling the car uphill

Answers

The answer is (a.) equal to the force pulling the car downhill

As long as the static friction of the car is least equal to the force that pulls the car downhill, the car is a rest. The static frictional force of the car increase to prevent any relative motion.

a cat paw and a bat wing are examples of choose one: a. artificially selected structures. b. embryonic structures. c. homologous structures. d. vestigial structures.

Answers

Answer:

Homologous structures

Explanation:

Homologous structures are anatomical features that are similar in structure and origin but may have different functions.

In the case of a cat's paw and a bat's wing, they both have a common underlying structure (similar bone arrangement), but they serve different purposes.

This similarity suggests a shared evolutionary ancestry, as these structures have been modified over time to suit the needs of different species (cats and bats).

What happen to the protein that passes through the cisternae of the golgi?

Answers

Answer:

Proteins are processed and modified in a successive manner to add or remove sugar as they move from cisterna to cisterna.

Explanation:

Golgi apparatus has a flat membrane disk in varies in number in stack, the number can be in between 3 to 20, however six is found in most of them. Cisternae can be separated in four classes cis, medial, trans, and TGN.

Proteins that come from the endoplasmic reticulum in cis type of cisternae after passed through cis to cis and move the protein in order to add or remove sugars to protein.

Thus, the correct answer is - Proteins are processed and modified in a successive manner to add or remove sugar as they move from cisterna to cisterna.

To test for lipid is heat needed????????

Answers

Answer:

No

Explanation:

Place two spatulas of the food sample into a test tube or 1 cm3 if the sample is liquid.

Add 2 cm3 of ethanol to the tube. Cover the end of the tube and shake the tube vigorously.

Allow the contents to settle.

Pour the liquid from the top of the mixture into a test tube half-filled with water.

Record the level of the food and whether the water is cloudy or clear.

As you can see no heat is needed

What is a tabular key?

Answers

tabular key is having the form of a thin plate or scale

Which part of the kidney acts as a funnel to pass the urine that is produced in several nephrons to the ureters? A. Medulla

B.
Cortex

C. Renal pelvis

D.
Renal vein

Answers

c. renal pelvis is the answer
I do think that the answer is C
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